List of possible malfunctions |
Diagnostics |
Elimination methods |
The bent shaft is not turned by a starter |
The rechargeable battery is discharged |
At inclusion of a starter from under a cowl the crash can be distributed. Tension on conclusions of the rechargeable battery at the switched-off consumers is lower than 12B |
Charge the battery; if it is not loaded — replace |
Decrease in capacity of the rechargeable battery |
Tension on conclusions of the rechargeable battery at the switched-off consumers is more than 12 V, but at inclusion of a starter lower than 6-8 Century fall. At the same time from under a cowl the crash can be distributed |
Charge the battery with small current (no more than 1 And); if capacity nevertheless is insufficient - replace |
Oxidation of conclusions of the rechargeable battery, unreliable contact of conclusions with plugs of wires |
At inclusion of a starter there is tension more than 0,5 In between conclusions of the rechargeable battery and plugs of wires (it is measured by the voltmeter). In attempts of launch of the engine from under a cowl the crash can be distributed |
Tighten plugs, smooth out contact surfaces, grease them with technical vaseline |
Jamming of the engine |
Turning a bent shaft for a nut (ratchet) of its pulley, be convinced that it rotates |
If the shaft does not rotate, establish the reason and repair the engine |
The gear wheel of the drive of a starter or teeths of a wreath of a flywheel are damaged |
Survey after removal of a starter |
Replace a starter or a flywheel |
The chain of control of the traction relay of a starter is faulty: wires are damaged, their tips are oxidized or weakened, contacts "30" and "50" switches of ignition do not become isolated or the relay of inclusion of a starter is faulty |
When turning the ignition key in situation "starter" the traction relay does not work (there is no click under a cowl). Check whether +12 V on the operating contact of the traction relay move at the same time |
Smooth out, press out tips of wires; replace the faulty switch of ignition or its contact part, the faulty relay of inclusion of a starter |
The traction relay of a starter is faulty: short circuit or break in the involving winding, jamming of an anchor of the relay (an anchor distortion, pollution of surfaces, corrosion, etc.) |
When turning a key in situation "starter" on the operating contact of the traction relay moves +12 V, but the traction relay does not work (there is no click under a cowl). Remove a starter, the relay, check its work |
Replace the faulty traction relay |
Contacts of the traction relay or wires, bad contact with "weight" are oxidized |
At inclusion of a starter the click under a cowl is heard, but the anchor of a starter does not rotate. Check an ohmmeter chain resistance "the accumulator battery starter" including a wire of "weight". If chains are serviceable, remove a starter and check operation of its relay |
Tighten fastening of tips of wires, press out plugs. Replace the faulty relay |
Break or short circuit in the holding starter relay winding |
At inclusion of a starter from under a cowl the crash is distributed. Tension on the rechargeable battery within norm. The relay is checked by an ohmmeter or on its excessive heating |
Replace the traction relay of a starter |
Obgoraniye of a starter collector, lag of brushes or their strong wear |
The anchor of a starter does not rotate or rotates slowly. (Previously be convinced of serviceability of the traction relay for what it is possible to give food to a contact bolt of a starter, passing the relay. Carefully, avoid sparking near the rechargeable battery!) On the removed starter check effort of a clip of brushes to a collector, their residual height, wear of a collector |
Smooth out the burned collector a fine-grained glass skin, wash out unleaded gasoline. Provide free movement of brushes in nests. At strong wear of a collector replace a starter |
Break or short circuit in a starter anchor winding |
The anchor of a starter does not rotate or rotates slowly. (Previously be convinced of serviceability of the traction relay for what it is possible to give food to a contact bolt of a starter, passing the relay. Carefully, avoid sparking near the rechargeable battery!) Serviceability of a winding is checked by an ohmmeter or on isolation darkening |
Replace a starter |
Pro-slipping of the coupling of a free wheeling |
At inclusion of a starter its anchor rotates, but the flywheel of the engine is not mobile |
Replace the coupling or a starter |
The gear wreath is turned on a flywheel |
At inclusion of a starter the gear wreath rotates, but the flywheel and a bent shaft are not mobile. Squeal is heard, howl from a coupling case |
Replace a flywheel |
Strong noise during the work of a starter |
The starter is fixed on the engine with a distortion, its fastening weakened or the cover from the drive is broken |
Survey |
Tighten threaded connections the ordered inhaling moment (see. "Appendix"), at breakage of a cover replace a starter |
Fastening of a pole of a starter weakened (touches an anchor it) |
Sort a starter, examine, check coaxiality of poles and a gap between them and an anchor |
Tighten poles or replace a starter |
Excessive wear of plugs of bearings or necks of a shaft of an anchor |
Survey after dismantling of a starter |
Replace a starter |
The gear wreath is turned on a flywheel |
At inclusion of a starter the gear wreath rotates, but the flywheel and a bent shaft are not mobile. Squeal is heard, howl from a coupling case |
Replace a flywheel |
Teeths of a gear wheel of the drive of a starter are worn-out or - is more often - a flywheel wreath |
Survey after removal of a starter |
Replace a starter or a flywheel |
The gear wheel does not leave gearing with a flywheel: jamming of the lever of the drive, easing or breakage of a spring of the coupling of a free wheeling or the traction relay of a starter, jamming of the coupling on vents of a shaft of an anchor or the core of the traction relay, malfunction of the switch of ignition (contacts "30" and "50" are not disconnected), the relay of inclusion of a starter |
Check whether stress from the operating contact of the relay of a starter at an ignition key otpuskaniye is removed, whether the key comes back to situation "ignition". Disconnection of contacts of the switch of ignition can be checked an ohmmeter. If tension on the traction relay of a starter disappears at switching off of ignition, remove and sort a starter for check |
Replace the traction relay of a starter or a starter assembled; contact group of the switch of ignition or switch assembled, relay of inclusion of a starter |
The bent shaft is turned by a starter, but the engine is not launched |
In a tank there is no fuel |
According to the index and a control lamp of level of fuel |
Add fuel |
The rechargeable battery is discharged |
The bent shaft is turned by a starter very slowly. Tension on conclusions of the rechargeable battery at the switched-off consumers is lower than 12B |
Charge the battery; if it is not loaded — replace |
Decrease in capacity of the rechargeable battery |
The bent shaft is turned very slowly. Tension on conclusions of the rechargeable battery at the switched-off consumers is more than 12 V, but at inclusion of a starter falls to 6-8 V |
Charge the battery with small current (no more than 1 And); if capacity nevertheless is insufficient - replace |
Oxidation of conclusions of the rechargeable battery, unreliable contact of conclusions with plugs of wires |
The bent shaft is turned by a starter very slowly. At inclusion of a starter tension more than 0,5 In between conclusions of the rechargeable battery and its plugs appears (check by the voltmeter) |
Tighten plugs, smooth out contact surfaces, grease them with technical vaseline |
The increased resistance to rotation of a bent shaft of the engine: engine oil thickened; the generator or the pump of cooling liquid is jammed; teases on shaft, inserts, details of tsilindroporshnevy group, deformation of shaft of the engine |
The bent shaft is turned by a starter very slowly. Tension between conclusions of the rechargeable battery is normal (see above).
If there is cold weather, and the day before the engine worked steadily and without extraneous noises, most likely, the reason of the increased resistance to rotation — the stiffened oil. In this case it is possible to try to launch the engine by means of the second rechargeable battery. After start-up do not allow operation of the engine on high turns and you watch a control lamp of pressure of oil: at its fire on the working engine immediately stop it for 1-2 minutes that the thickened oil managed to flow down in the pallet.
If at start-up or operation of the engine extraneous noises are heard, check free rotation of pulleys of the pump of cooling liquid and the generator. At extraneous noises in a zone of the block or a head of the block of cylinders disassemble the engine |
Use engine oil according to climatic conditions. When jamming the pump of cooling liquid replace a pump cover with a krylchatka [In] or all pump [U], when jamming the generator — the bearing or the generator assembled.
In case of zadir on shaft, inserts, details of tsilindroporshnevy group, deformation of shaft, replace faulty details, find out and remove the cause of their failure |
Malfunction in a chain of low voltage of system of ignition |
Check the voltmeter whether supply voltage on the ignition coil moves. If is not present, check an ohmmeter a chain from the rechargeable battery to the ignition coil (via the ignition switch) and the distributor |
Smooth out the oxidized tips, tighten the weakened fastenings of wires, replace the damaged wires, the switch of ignition or its contact part, the relay of inclusion of ignition |
The contact group of the breaker is faulty: the gap between contacts is not adjusted, contacts are damaged or greasy, the spring of mobile contact weakened |
Survey. The gap between contacts is checked by the flat probe |
Adjust a gap (see. "System of ignition of the engine UEPA-331"; "System of ignition of the VAZ-2106 engine"). Smooth out worn-out contacts a file, check their parallelism, lack of shift, remove dirt and oil. When weakening a spring, jamming or strong wear of contacts replace contact group |
The ignition distributor condenser is faulty |
Take out the central wire from a cover of the distributor and fix its tip at distance of 5-6 mm from "mass" of the car. At the included ignition manually disconnect contacts of the breaker, slightly turning the distributor roller for a rotor. If between a tip of a wire and "weight" the noticeable blue spark slips and the click is heard, the condenser is serviceable. If the spark weak, threadlike or is absent at all, close contacts by the screw-driver - strengthening of a spark in this case will indicate malfunction of the condenser |
Replace the faulty condenser |
Damage of isolation of high-voltage devices and chains (lack of sparking) |
Having reliably fixed the end of a high-voltage wire at distance of 5-6 mm from "mass" of the car, include a starter (do not touch high-voltage chains!). Between a wire and "weight" the spark (has to slip regularly at obviously serviceable high-voltage wires, the condenser and contacts of the breaker). If the spark is absent on an ignition coil conclusion - the coil is faulty if on ignition distributor conclusions/conclusions - the rotor or a cover of the distributor are faulty. Breakdown of a rotor or cover is determined by progara or cracks on their surface. Serviceability of the resistor of a rotor (1 kOhm) is checked by an ohmmeter |
Elements of system of ignition should be kept clean. Faulty replace the ignition coil, the punched cover and a rotor of the distributor, the fused rotor resistor, the damaged high-voltage wires. Under trying conditions (salt on roads, the frosts alternating with thaw) it is desirable for operation to replace wires time in 3-5 years. |
High-voltage wires are connected to an ignition distributor cover in the wrong order |
Survey |
Connect wires according to an operating procedure of cylinders |
The gap between electrodes of candles does not meet standard |
The gap is checked by the round probe |
Of a side electrode establish by Podgibany the necessary gap or replace candles |
Faulty candles |
The faulty candle, as a rule, can be determined by color of a deposit on the insulator (see at the end of the section "Diagnostics"). Lack of external damages and sparking between electrodes on the turned-out candle do not allow to draw a conclusion on its working capacity |
Replace faulty candles |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", and "System of ignition of the car with the VAZ-2106 engine" |
Adjust an ignition advancing corner |
Gas distribution phases are broken |
Check coincidence of tags on cranked and distributive shaft |
See. "Check and adjustment of thermal gaps in the drive of valves", (UEPA-331i of VAZ-2106) |
Fuel filters are littered, water in a power supply system froze, hoses are pressed, fuel highways are deformed, the fuel pump is faulty |
At a long provorachivaniye of a bent shaft of the engine a starter from an exhaust pipe does not smell of gasoline. In the float-operated camera of the carburetor there is no gasoline - when pressing "gas" from a spray of the accelerating pump there is no fuel stream |
Go into the car in a warm garage in the winter, blow (the tire pump) a power supply system from the fuel pump to a gasoline tank, having opened a cover of a bulk mouth; replace the fuel pump or its diaphragms, the damaged hoses and tubes |
The EPHH electropneumatic valve is faulty or on it +12 V at inclusion of ignition do not arrive |
See. "EPHH control system" in the section "Electric equipment" |
Replace the faulty valve, provide contact in electric chains. It is temporarily possible to connect a tube the carburetor pneumatic valve union to the union of an inlet pipe |
The carburetor pneumatic valve diaphragm is damaged |
Check integrity of a diaphragm, having created depression in a pneumatic valve cavity a rubber pear or a mouth (through a pure rubber tube) |
Replace a faulty pneumatic valve |
The starting arrangement of the carburetor or its drive are faulty or are not adjusted |
See. "Power supply system" |
Adjust the starting arrangement (see. "Power supply system"), replace faulty details |
Jets and channels of the carburetor are littered, jets are leaky wrapped |
Examine, blow channels and jets |
Wash out gasoline or acetone and blow jets, at strong pollution clean them a scaffold or a needle from a soft tree. Densely wrap jets (do not damage a carving and a jet!) |
Suction of foreign air in an inlet pipe |
Examine joints, check reliability of fastening of hoses, unions, collars. For the period of start-up disconnect the vacuum amplifier of brakes, having pressed the corresponding hose |
Replace laying, details with the deformed flanges, the faulty vacuum amplifier |
Excessive level of fuel in the float-operated camera of the carburetor |
The strong smell of gasoline from an exhaust pipe, the cold engine is started up better, than hot. Uncover the carburetor, check tightness of a float, ease of its movement and lack of a zadevaniye for walls of the float-operated camera. For check of tightness of the needle valve turn a carburetor cover a float up and pump up gasoline the lever of manual pumping of the fuel pump. The slightest leak of gasoline from under a needle or the basis of the valve is inadmissible |
Replace the needle valve, adjust fuel level in the float-operated camera (see. "Power supply system") |
The reenriched mix because of a gasoline effluence in an engine case through the torn diaphragm of the fuel pump |
Oil on the probe smells of gasoline, the lamp of emergency pressure of oil on low turns of the engine can light up |
Replace the fuel pump or its diaphragms; if in oil there is a lot of gasoline, then and oil |
The engine is easily launched in cold weather, but right there stops |
The starting arrangement of the carburetor is faulty or is not adjusted: the air gate is not slightly opened at the first flashes in cylinders |
Survey at uncovered the case of the air filter (do not bring closer the person - the flash is possible!). Indirect check - at a pulling of the handle of control of the air gate on the heated-up engine it stops at once and started up hardly |
Adjust the starting arrangement, replace worn-out details |
The engine is launched long |
Gasoline from the float-operated camera of the carburetor evaporated (after the long parking, especially in hot weather) |
|
After the long parking pump up gasoline the lever of manual pumping of the fuel pump |
The engine works unstably or becomes deaf idling |
Fuel-supply lines, fuel filters are littered, water got to fuel |
Blow fuel-supply lines, without removing filters |
Clear a grid of the petrolreceiver and fuel filters, replace the filter of thin purification of fuel (if it is established). At suspicion on availability of water in gasoline, especially on the eve of a winter season, add to fuel one of the special structures connecting water (after use of structure it is recommended to wash out or replace fuel filters) |
The gap between electrodes of candles does not meet standard |
The gap is checked by the round probe |
Establish the necessary gap by a podgibaniye of a side electrode or replace candles |
Strong deposit on electrodes of spark plugs; hit of particles of a deposit in a gap between electrodes |
Survey. It is possible to determine by a deposit, as a rule, operability of a candle and a condition of the engine (see at the end of the section "Diagnostics") |
Clear candles compressed air or mechanically (do not damage the insulator!). Establish and eliminate the reason of the raised nagaroobrazovaniye in the combustion chamber, if necessary replace candles |
Spark plugs are faulty: leakage of current on cracks in the insulator or on a deposit on a thermal cone, bad contact in assembly of the central electrode |
The faulty candle, as a rule, can be determined by color of a deposit on the insulator (see at the end of the section "Diagnostics"). Lack of external damages and sparking between electrodes on the turned-out candle do not allow to draw a conclusion on its working capacity |
Replace faulty candles |
Damage of high-voltage devices and chains - interruptions in sparking |
Having reliably fixed the end of a high-voltage wire at distance of 5-6 mm from "mass" of the car, include a starter (do not touch high-voltage chains!). Between a wire and "weight" the spark (for check use only obviously serviceable in/in wires) has to slip regularly. If the spark is absent on an ignition coil conclusion - the coil is faulty if on ignition distributor conclusions/conclusions - the rotor or a cover of the distributor are faulty. Breakdown of a rotor or cover is determined by progara or cracks on their surface. Serviceability of the resistor of a rotor (1 kOhm) is checked by an ohmmeter |
Elements of system of ignition should be kept clean. Faulty replace the ignition coil, the punched cover and a rotor of the distributor, the fused rotor resistor, the damaged high-voltage wires. Under trying conditions (salt on roads, the frosts alternating with thaw) it is desirable for operation to replace wires time in 3-5 years. |
Wear, damage of a contact piece of coal to an ignition distributor cover. The spring of a piece of coal weakened |
Survey at uncovered |
Replace a piece of coal with a spring or a distributor cover |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", and "System of ignition of the car with the VAZ-2106 engine" |
Adjust an ignition advancing corner |
Bad contact in a chain of low voltage |
Check at the included ignition whether tension on the ignition coil moves. Check an ohmmeter integrity of a chain from the ignition coil before contacts of the breaker |
Smooth out the oxidized tips, tighten the weakened fastenings of wires, replace the damaged wires, the switch of ignition or its contact part |
The contact group of the breaker is faulty: the gap between contacts is not adjusted, contacts are damaged or greasy, the spring weakened, the mobile contact gets jammed on an axis |
Survey, see. "System of ignition of the car with the engine UEPA-331", and "System of ignition of the car with the VAZ-2106 engine" |
Check parallelism, lack of shift of contacts, clear contacts of dirt and oil, smooth out worn-out contacts a file. When weakening a spring, jamming or strong wear of contacts replace contact group |
Installation of phases of gas distribution is broken |
Check coincidence of tags on cranked and distributive shaft |
See. "Check and adjustment of thermal gaps in the drive of valves", pages 13 and 35 |
Low compression in engine cylinders (less than 10 kgfs/cm2): wear or damage of valves or their saddles; wear, bedding or breakage of piston rings |
Warm up the engine up to the working temperature and turn out candles. Press a pedal of "gas" to the full and, inserting into candle openings êîìïðåññîìåòð, turn a bent shaft a starter (work together). At the same time it is necessary to close a high-voltage wire of the coil of ignition on "weight". Repeat measurements, the gulf in cylinders through candle openings of 10-15 cm3 of engine oil. In those cylinders where the compression increased more, than on 2 kgfs/cm2, perhaps, rings are strongly worn-out, broken or lay. If the compression remained lower than 10 kgfs/cm2, wear or damage of valves or their saddles is possible |
Replace rings, pistons. Repair cylinders on HUNDRED. Grind in valves to saddles, if necessary replace valves, them the directing plugs, pierce saddles on HUNDRED |
Jets and channels of the carburetor are littered. Jets are leaky wrapped |
Is defined by survey, a purge of channels and jets (see. "Power supply system", page 65) |
Blow jets, at strong pollution clean them a scaffold or a needle from a soft tree. Clean system of ventilation of a case. Densely wrap jets (do not damage a carving and a jet!) |
The EPHH system control unit is faulty |
See. "EPHH control system", page 211 |
Replace the faulty control unit |
Adjustment of idling of the engine is broken |
See. "Power supply system", page 65 |
Adjust idling (see. "Power supply system", page 65) |
Rupture of a rubber sealing ring of the screw of quality of mix |
Turn out the screw, examine a ring |
Replace a ring |
Suction of foreign air in an inlet pipe |
Examine joints, check reliability of fastening of hoses, unions, an inhaling of collars. For the period of start-up disconnect the vacuum amplifier of brakes, having pressed the corresponding hose |
Replace laying, details with the deformed flanges, the faulty vacuum amplifier |
Excessive level of fuel in the float-operated camera of the carburetor |
The strong smell of gasoline from an exhaust pipe, the cold engine is started up better, than hot. Uncover the carburetor, check tightness of a float, ease of its movement and lack of a zadevaniye for walls of the float-operated camera. For check of tightness of the needle valve turn a carburetor cover a float up and pump up gasoline the lever of the fuel pump. The slightest leak of gasoline from under a needle or the basis of the valve is inadmissible |
Replace the untight needle valve, adjust fuel level in the float-operated camera (see. "Power supply system", page 65) |
Insufficient level of fuel in the float-operated camera of the carburetor |
Replace the untight needle valve, adjust fuel level in the float-operated camera (see. "Power supply system", page 65) |
Adjust fuel level (see. "Power supply system", page 65) |
The reenriched mix because of a gasoline effluence in an engine case through the torn diaphragm of the fuel pump |
Oil on the probe smells of gasoline, fire of a lamp of emergency pressure of oil on low turns of the engine is possible |
Replace the fuel pump or the damaged diaphragms; if in oil there is a lot of gasoline, then and oil |
Gaps in the drive of valves are not adjusted |
It is checked by a set of probes |
Adjust gaps (see. "Check and adjustment of thermal gaps in the drive of valves", pages 13 and 35) |
Wear of cams of the camshaft |
Survey after partial dismantling of the engine |
Replace the camshaft |
Easing or breakage of springs of small weights of the centrifugal regulator of an advancing of ignition, are lost damping ringlets of small weights, jamming of small weights |
Visually and at the special stand HUNDRED |
Replace the ignition distributor |
Indistinct operation of the vacuum regulator of an advancing of ignition: at vacuum removal the plate does not come back to a starting position, a big side play in the bearing |
Survey. The characteristic of the vacuum regulator is removed at the special stand HUNDRED |
Eliminate jamming, replace the faulty vacuum regulator or the distributor of ignition assembled |
Low turns of idling |
Adjustment of idling of the engine is broken |
See. "Power supply system" (page 65) |
Adjust idling (see. "Power supply system", page 65) |
Indistinct operation of the vacuum regulator of an advancing of ignition: at vacuum removal the plate does not come back to a starting position, a big side play in the bearing |
Survey. The characteristic of the vacuum regulator is removed at the special stand HUNDRED |
Eliminate jamming, replace the faulty vacuum regulator or the distributor of ignition assembled |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", page 82, "System of ignition of the car with the VAZ-2106 engine", page 89 |
Adjust an ignition advancing corner |
Excessive level of fuel in the float-operated camera of the carburetor |
The strong smell of gasoline from an exhaust pipe, the cold engine is started up better, than hot. Uncover the carburetor, check tightness of a float, ease of its movement and lack of a zadevaniye for walls of the float-operated camera. For check of tightness of the needle valve turn a carburetor cover a float up and pump up gasoline the lever the handle of pumping of the fuel pump. The slightest leak of gasoline from under a needle or the basis of the valve is inadmissible |
Replace the untight needle valve, adjust fuel level in the float-operated camera (see. "Power supply system", page 65) |
Contamination of a fuel or air jet of idling of the carburetor |
Survey |
Wash out unleaded gasoline or acetone and blow jets and channels of system of idling, clean system of ventilation of a case |
Rupture of a rubber sealing ring of the screw of quality of mix |
Survey |
Replace a ring |
The increased resistance to an air stream in the inlet highway |
Check an element of the air filter, an inlet path (lack of foreign objects, leaves, etc.) |
Clear an inlet path, replace the polluted element of the air filter |
Suction of foreign air in an inlet pipe |
Examine joints, check reliability of fastening of hoses, unions, an inhaling of collars. For the period of start-up disconnect the vacuum amplifier of brakes, having pressed the corresponding hose |
Replace laying, details with the deformed flanges, the faulty vacuum amplifier |
High turns of idling |
Adjustment of idling of the engine is broken |
See. "Power supply system", page 65 |
Adjust idling (see. "Power supply system", page 65) |
The starting arrangement of the carburetor is faulty or is not adjusted |
See. "Power supply system", page 65 |
Adjust the starting arrangement (see. "Power supply system", page 65), replace worn-out details |
Long driving on high turns of the engine |
In 1-2 minutes of work idling turns decrease to norm |
Is not malfunction |
Malfunction of the drive of butterfly valves |
Check the course of a pedal of "gas", a gap in the drive, be convinced of lack of jamming in drive elements |
Replace faulty details, oil them engine |
The butterfly valve of the second camera of the carburetor is not completely closed |
On the removed carburetor on a gleam the crack between a butterfly valve and walls of the mixing camera is visible (see. "Carburetor", page 71) |
The persistent screw of the lever of the gate achieve its full closing. At the same time the gate has to open easily, without jamming. Upon termination of adjustment fill in the screw with paint |
Gates of the carburetor are installed on axes with a distortion and are not closed at any position of persistent screws |
Survey |
Address on HUNDRED or replace the carburetor |
Hit of foreign objects between a butterfly valve and the diffuser |
Survey |
Remove a foreign subject, check operation of the gate |
Contamination of an air jet of idling |
Survey |
Wash out unleaded gasoline or acetone and blow a jet. At strong pollution clear it a scaffold or a needle from a soft tree. Wash out system of ventilation of a case |
During the movement àâòîèîáèëÿ with the included transfer the engine stops at an accelerator pedal otpuskaniye (on compulsory single to the course) (see also "The engine works unstably or becomes deaf idling") |
The EPHH control unit or its chains is faulty |
See. "EPHH control system" in the section "Electric equipment", page 211 |
Replace the faulty block |
In cold weather the engine becomes deaf soon after a start of motion, but after the short parking is launched again |
In the diffuser of the carburetor the ice stopper was formed: the hose of supply of the warmed-up air is not connected to a branch pipe on a final collector |
Survey |
Fix by a collar a hose on a branch pipe of an intake of the warmed-up air |
The engine stops spontaneously and launched in hot weather hardly |
Steam stopper in a power supply system |
Examine fuel-supply lines, blow the tire pump |
Eliminate excesses of hoses, replace the deformed tubes |
The engine does not razvivt full capacity and has no sufficient acceleration performance. Breakthroughs and failures at the movement of the car |
Insufficient level of fuel in the float-operated camera of the carburetor. |
At a pulling of the handle of control of the air gate breakthroughs and failures decrease or disappear completely |
Adjust fuel level |
Jets and channels of the carburetor are littered. Jets are leaky wrapped |
Examine, blow channels and jets |
Wash out gasoline or acetone and blow jets, at strong pollution clean them a scaffold or a needle from a soft tree. Densely wrap jets (do not damage a carving and a jet!) |
Suction of foreign air in an inlet pipe |
Examine joints, check reliability of fastening of hoses, unions, an inhaling of collars. For a short time disconnect the vacuum amplifier of brakes, having pressed the corresponding hose (it is careful: the effort to brake pedals considerably will increase!) |
Replace laying, details with the deformed flanges, the faulty vacuum amplifier |
The starting arrangement or its drive are faulty or are not adjusted |
See. "Power supply system", page 65 |
Adjust the starting arrangement (cm, "Power supply system", page v5), replace worn-out details |
Excessive level of fuel in the float-operated camera of the carburetor |
The strong smell of gasoline from an exhaust pipe, the cold engine is started up better, than hot. Uncover the carburetor, check tightness of a float, ease of its movement and lack of a zadevaniye for walls of the float-operated camera. For check of tightness of the needle valve turn a carburetor cover a float up and pump up gasoline the lever of manual pumping of the fuel pump. The slightest leak of gasoline from under a needle or the basis of the valve is inadmissible |
Replace the needle valve, adjust fuel level in the float-operated camera (see. "Power supply system", page v6) |
The reenriched mix because of a gasoline effluence in an engine case through the torn diaphragm of the fuel pump |
Oil on the probe smells of gasoline, the lamp of emergency pressure of oil on low turns of the engine can light up |
Replace the fuel pump or the torn diaphragms; if in oil there is a lot of gasoline, then and oil |
Incomplete opening of butterfly valves |
Is defined visually on the stopped engine |
Adjust the drive of butterfly valves |
The accelerating pump or spray is faulty, toplivnyeny channels of the carburetor are littered |
Check giving of the pump, lack of dribble of gasoline from under a diaphragm. Be convinced of a free repaving of the lever of the accelerating pump |
Replace the damaged details, tighten ðåçüáîâûê connections blow channels |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", page 82, "System of ignition of the car with the VAZ-2106 engine", page 89 |
Adjust an ignition advancing corner |
Gas distribution phases are broken |
Check coincidence of tags on cranked and distributive shaft |
See. "Check and adjustment of thermal gaps in the drive of valves", pages 13 and 35 |
Low compression in engine cylinders (less than 10 kgfs/cm2): wear or damage of valves and their saddles; wear, bedding or breakage of piston rings |
Warm up the engine up to the working temperature and turn out candles. Completely press a pedal of "gas" and, inserting into candle openings êîìïðåññîìåòð, turn a bent shaft a starter (work together). At the same time it is necessary to close a high-voltage wire of the coil of ignition on "weight". Repeat measurements, having washed down in cylinders through candle openings 10-15 cm3 of engine oil. In those cylinders where the compression increased more, than on 2 kgfs / ñìã, perhaps, rings are strongly worn-out, broken or lay. If the compression remained lower than 10 kgfs/cm2, wear or damage of valves or their saddles is possible |
Repair cylinders. Replace pistons and piston rings <HUNDRED> Grind in valves to saddles, if necessary replace valves, them the directing plugs, pierce saddles <HUNDRED> |
The gap between electrodes of candles does not meet standard |
The gap is checked by the round probe |
Of a side electrode establish by Podgibany the necessary gap or replace candles |
Strong deposit on electrodes of spark plugs; hit of particles of a deposit in a gap between electrodes |
Survey. It is possible to determine by a deposit, as a rule, operability of a candle and a condition of the engine (see at the end of the section "Diagnostics") |
Clear candles compressed air or mechanically (do not damage the insulator!). Establish and eliminate the reason of the raised nagaroobraeovaniye in the combustion chamber, if necessary replace candles |
Spark plugs are faulty: leakage of current on cracks in the insulator or on a deposit on a thermal cone, bad contact in assembly of the central electrode |
The faulty candle, as a rule, can be determined by color of a deposit on the insulator (see at the end of the section "Diagnostics"). Lack of external damages and sparking between electrodes on the turned-out candle do not allow to draw a conclusion on its working capacity |
Replace faulty candles |
Wear, damage of a contact piece of coal to an ignition distributor cover. The spring of a piece of coal weakened |
Survey |
Replace a cover of the distributor or a piece of coal with a spring |
Damage of isolation of high-voltage devices and chains - interruptions in sparking |
Having reliably fixed the end of a high-voltage wire at distance of 5-6 mm from "mass" of the car, turn the engine a starter (do not touch high-voltage chains!). Between a wire and "weight" the spark (for check use only obviously serviceable in/in wires) has to slip regularly. If the spark is absent on an ignition coil conclusion - the coil is faulty if on ignition distributor conclusions/conclusions - the rotor or a cover of the distributor are faulty. Breakdown of a rotor or cover is determined by progara or cracks on their surface. Serviceability of the resistor of a rotor (1 kOhm) is checked by an ohmmeter. |
Elements of system of ignition should be kept clean. Faulty replace the ignition coil, the punched cover and a rotor of the distributor, the fused rotor resistor, the damaged high-voltage wires. Under trying conditions (salt on roads, the frosts alternating with thaw) it is desirable for operation to replace wires time in 3-5 years. |
Easing or breakage of springs of small weights of the centrifugal regulator of the distributor of ignition, are lost damping ringlets of small weights, jamming of small weights |
Visually and at the special stand <HUNDRED> |
Replace the ignition distributor |
Indistinct operation of the vacuum regulator of an advancing of ignition: at vacuum removal the plate does not come back to a starting position |
Survey. The characteristic of the vacuum regulator is removed at the special stand <HUNDRED> |
Eliminate jamming, replace the faulty vacuum regulator or the distributor of ignition assembled |
In a tank there is not enough fuel |
According to the index and a control lamp of level of fuel |
Add fuel |
Fuel filters are littered, water in a power supply system froze, hoses are pressed, fuel highways are deformed |
Examine fuel-supply lines, replace filters |
Go into the car in a warm garage in the winter, blow (the tire pump) a power supply system from the fuel pump to a gasoline tank, replace faulty hoses, tubes, filters |
The fuel pump does not create necessary pressure in system |
See. "Power supply system", page 65 |
Replace the fuel pump or its diaphragms |
Gaps in the drive of valves are not adjusted |
It is checked by a set of probes (see. "Check and adjustment of thermal gaps in the drive of valves", pages 13 and 35) |
Adjust gaps |
Strong wear of cams of the camshaft |
Survey after partial dismantling of the engine |
Replace the worn-out camshaft |
Draft or breakage of valvate springs |
Examine springs, measure their length in a free state and under loading |
Replace faulty springs |
Cottons in an inlet pipe |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", page 82, and "System of ignition of the car with the VAZ-2106 engine", page 89 |
Adjust an ignition advancing corner |
Gaps in the drive of valves are not adjusted |
Check gaps a set of probes |
Adjust gaps (see. "Check and adjustment of thermal gaps in the drive of valves", pages 13 and 35) |
Gets jammed cores of valves in plugs: resinous deposits on a surface of a core of the valve or plug, a deposit or breakage of valvate springs |
Examine cores of valves, springs, measure their length in a free state and under loading |
Replace faulty springs, clear cores of valves acetone or solvent for nitroenamels, if necessary replace valves, deploy plugs special development |
Gas distribution phases are broken |
Check coincidence of tags on cranked and distributive shaft |
See. "Check and adjustment of thermal gaps in the drive of valves", pages 13 and 35 |
"Shots" in the muffler |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", page 82, "System of ignition of the car with the VAZ-2106 engine" of page 89 |
Adjust an ignition advancing corner |
Gaps in the drive of valves are not adjusted |
Check gaps a set of probes |
Adjust gaps (see. "Check and adjustment of thermal gaps in the drive of valves", pages 13 and 35) |
Gets jammed cores of valves in plugs; resinous deposits on a surface of a core of the valve or plug, a deposit or breakage of valvate springs |
Examine cores of valves, springs, measure their length in a free state and under loading |
Replace faulty springs, clear cores of valves acetone or solvent for nitroenamels, if necessary replace valves, deploy plugs special development |
Gas distribution phases are broken |
Check coincidence of tags on cranked and distributive shaft |
See. "Check and adjustment of thermal gaps in the drive of valves", pages 13 and 35 |
Damage of isolation of high-voltage devices and chains - interruptions in sparking |
Having reliably fixed the end of a high-voltage wire at distance of 5-6 mm from "mass" of the car, include a starter (do not touch high-voltage chains!). Between a wire and "weight" the spark (for check use only obviously serviceable in/in wires) has to slip regularly. If the spark is absent on an ignition coil conclusion - the coil is faulty if on ignition distributor conclusions/conclusions - the rotor or a cover of the distributor are faulty. Breakdown of a rotor or cover is determined by progara or cracks on their surface. Serviceability of the resistor of a rotor (1 kOhm) is checked by an ohmmeter |
Elements of system of ignition should be kept clean. Faulty replace the ignition coil, the punched cover and a rotor of the distributor, the fused rotor resistor, the damaged high-voltage wires. Under trying conditions (salt on roads, the frosts alternating with thaw) it is desirable for operation to replace wires time in 3-5 years. |
Cottons in an inlet pipe after operation of the engine with the raised loading |
Candles with inappropriate kalilny number are used |
— |
Use the candles recommended by manufacturer |
The increased fuel consumption |
Leakage of a power supply system |
Gasoline smell, begin to flow |
Tighten collars on hoses, threaded connections. Check reliability of fastening of unions; when weakening landing replace the corresponding knots and details |
Pollution of a replaceable element of the air filter |
Survey at uncovered the case of the air filter |
Replace a replaceable element of the air filter (see. "Power supply system", page 65) |
The reenriched mix because of a gasoline effluence in an engine case through the torn diaphragm of the fuel pump |
Oil on the probe smells of gasoline, the lamp of emergency pressure of oil on low turns of the engine can light up |
Replace the fuel pump or the damaged diaphragms; if in oil there is a lot of gasoline, then and oil |
The increased resistance to the movement of the car |
Âûáåã the heated-up car (after the run not less than 20 km) from the speed of 50 km/h has to be not less than 500 m |
Check and adjust pressure in tires, the angles of installation of forward wheels, operation of the brake system |
The starting arrangement or its drive are faulty or are not adjusted |
See. "Power supply system", page 65 |
Adjust the starting arrangement (see. "Power supply system", page 65), replace faulty details |
Excessive level of fuel in the float-operated camera of the carburetor |
The strong smell of gasoline from an exhaust pipe, the cold engine is started up better, than hot. Uncover the carburetor, check tightness of a float, ease of its movement and lack of a zadevaniye for walls of the float-operated camera. For check of tightness of the needle valve turn a carburetor cover a float up and pump up gasoline the lever of the fuel pump. The slightest leak of gasoline from under a needle or the basis of the valve is inadmissible |
Replace the needle valve, adjust fuel level in the float-operated camera (see. "Power supply system", page 65) |
Jets and channels of the carburetor are littered. Jets are leaky wrapped the backpressure valve of the accelerating pump Is untight |
Examine, blow channels and jets |
Wash out gasoline or acetone and blow jets, at strong pollution clean them a scaffold or a needle from a soft tree. Densely wrap jets (do not damage a carving and a jet!). Replace the damaged details |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", page 82, "System of ignition of the car with the VAZ-2106 engine", page 89 |
Adjust an ignition advancing corner |
Easing or breakage of springs of small weights of the centrifugal regulator of an advancing of ignition, are lost damping ringlets of small weights, jamming of small weights |
Visually and at the special stand <HUNDRED> |
Replace the ignition distributor |
Indistinct operation of the vacuum regulator of an advancing of ignition: at vacuum removal the plate does not come back to a starting position |
Survey. The characteristic of the vacuum regulator is removed at the special stand <HUNDRED> |
Eliminate jamming, replace the faulty vacuum regulator or the distributor of ignition assembled |
Spark plugs are faulty: leakage of current on cracks in the insulator or on a deposit on a thermal cone, bad contact in assembly of the central electrode |
The faulty candle, as a rule, can be determined by color of a deposit on the insulator (see at the end of the section "Diagnostics"). Lack of external damages and sparking between electrodes on the turned-out candle do not allow to draw a conclusion on its working capacity |
Replace faulty candles |
Admissions of ignition: contacts of the breaker, weakening of a spring or jamming of mobile contact are faulty, damaged or greasy |
Survey at uncovered the distributor |
Check parallelism, lack of shift of contacts, clear contacts of dirt and oil, smooth out worn-out contacts a file. When weakening a spring, jamming or strong wear of contacts replace contact group |
Admissions of ignition because of malfunction of high-voltage wires |
Having reliably fixed the end of a high-voltage wire at distance of 5-6 mm from "mass" of the car, turn a bent shaft a starter (do not touch high-voltage chains!). Between a wire and "weight" the spark has to slip regularly |
At suspicion replace a wire or a tip with breakdown of a wire or its tip obviously serviceable |
Adjustment of idling of the engine is broken |
See. "Power supply system", page 65 |
Adjust idling (see. "Power supply system", page 65) |
Malfunction of the drive of butterfly valves of the carburetor |
Check the course of a pedal of "gas", a gap in the drive, be convinced of lack of jamming in the drive |
Replace faulty details, oil details of the drive engine |
The butterfly valve of the second camera of the carburetor is not completely closed |
On a gleam the crack between a butterfly valve and walls of the mixing camera is visible |
The persistent screw of the gate achieve its full closing. At the same time the gate has to open easily, without jamming. Upon termination of adjustment fill in the screw with paint |
Gates of the carburetor are installed on axes with a distortion and are not closed at any position of persistent screws |
Survey |
Address on HUNDRED or replace the carburetor |
Hit of foreign objects between a butterfly valve and the diffuser |
Survey |
Remove a foreign subject, check operation of the gate |
Gaps in the drive of valves are broken |
Check gaps a set of flat probes (see. "Check and adjustment of thermal gaps in the drive of valves", pages 13 and 35) |
Adjust gaps |
Low compression in engine cylinders (less than 10 kgfs/cm2): wear or those channels |
Warm up the engine up to the working temperature and turn out candles. Press a pedal of "gas" to the full and, inserting into candle openings êîìïðåññîìåòð, turn a bent shaft a starter (work together). At the same time it is necessary to close a high-voltage wire of the coil of ignition on "weight". Repeat measurements, having washed down in cylinders through candle openings 10-15 cm3 of engine oil. In those cylinders where the compression increased more, than on 2 kgfs/cm2, perhaps, rings are strongly worn-out, broken or lay. If the compression remained lower than 10 kgfs/cm2, wear or damage of valves or their saddles is possible |
Replace rings, pistons. Repair cylinders <HUNDRED>. Grind in valves to saddles, if necessary replace valves, them the directing plugs, pierce saddles <HUNDRED> |
The raised oil consumption (more than 500 g on 1000 km of a run) |
Oil leak through epiploons and laying of the engine |
Wash up the engine, then after the short run examine places of possible leak |
Improve fastenings in places of leak, if necessary replace laying and worn-out epiploons |
Wear, loss of elasticity of maslootrazhatelny caps. Wear of cores and the directing plugs of valves |
Survey of details |
Replace worn-out details |
Wear, breakage or coking up (mobility loss) of piston rings. Wear of pistons, cylinders |
Survey after dismantling of the engine |
Replace rings; clear flutes in pistons, replace worn-out pistons. Chisel also to an otkhoninguyta cylinders <HUNDRED> |
The system of ventilation of a case is littered |
Survey |
Clean system of ventilation |
Insufficient pressure of oil (the lamp of emergency pressure of oil burns) |
It is not enough oil in the engine |
On the oil level probe index |
Add oil |
Use of oil of inappropriate viscosity |
— |
Replace oil |
Oil receiver grid contamination |
Survey |
Clear a grid |
Distortion, jamming of the reducing valve or weakening of its spring |
Survey |
Clear the valve. Replace the faulty valve and/or a spring |
Wear of gear wheels of the oil pump |
Survey |
Replace worn-out gear wheels |
Excessive gap between inserts and necks of a bent shaft |
Is defined by measurement of the interfaced details after dismantling of the engine |
Replace worn-out inserts. If necessary replace or repair a bent shaft <HUNDRED> |
Fluidifying of oil because of course of gasoline in an engine case through the damaged diaphragm of the fuel pump |
Oil on the probe smells of gasoline, the lamp of insufficient pressure of oil on low turns of the engine can light up |
Replace the fuel pump or the damaged diaphragms; if in oil there is a lot of gasoline, then and oil |
The sensor of emergency pressure of oil is faulty |
Check by means of the manometer and an ohmmeter (with a pressure below 0,5 kgfs/cm2 the contact of the sensor has to become isolated on "weight", and it is higher than 0,8 kgfs/cm2 - to be disconnected) |
Replace the faulty sensor |
The engine overheats (the arrow of the index of temperature of cooling liquid is in a red zone) |
The sensor or the index of temperature is faulty |
Check the index and the sensor an autotester (see. "Electric equipment", page 186) |
— replace the faulty sensor, the index |
The thermostat is faulty |
See. "Cooling system", page 54 |
Replace the faulty thermostat |
Insufficient amount of cooling liquid |
Level of liquid is lower than a tag of "MIN" on a broad tank |
Eliminate leaks. Add cooling liquid (see. "Falling of level of cooling liquid in a broad tank", page 250) |
The belt of the drive of the pump of cooling liquid is poorly tense or torn off |
The voltmeter in a combination of devices can indicate lack of charging of the rechargeable battery |
Tighten or replace a belt |
Steam traffic jams in the cooling system because of leakage of a stopper of a broad tank |
Apply soapsuds on a tank stopper, kill the engine and squeeze hands cooling system hoses. Air should not come out from under a stopper |
Replace a stopper and/or a tank |
It is a lot of scum in the cooling system |
|
Wash out the cooling system means for removal of a scum. You dissolve the concentrated antifreeze only with the distilled water |
Radiator cells are polluted |
Survey |
Wash out a radiator a water stream under pressure |
The pump of cooling liquid is faulty |
— |
Replace the pump assembled |
The cooling system electric fan does not turn on |
Close among themselves contacts of the sensor of turning on of the electric fan. If the fan started working — the sensor is faulty if it is not present — electric chains, the relay or electric motor |
Restore contact in electric chains. Replace the faulty sensor, the relay or the electric motor |
Unacceptably low octane number of gasoline |
— |
Fuel the car, the recommended manufacturer |
It is a lot of deposit in the combustion chamber, on the bottoms of pistons, plates of valves |
Survey after removal of a head of the block of cylinders of the engine |
Remove the cause of a nagaroobrazovaniye. See. "The increased fuel consumption", page 247, "The raised oil consumption", page 249. Apply oils of the recommended viscosity and, whenever possible, with a low ash-content |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", page 82, and "System of ignition of the car with the VAZ-2106 engine", page 89 |
Adjust an ignition advancing corner |
The engine long gets warm up to the working temperature |
The thermostat is faulty |
See. "Cooling system", page 54 |
Replace the faulty thermostat |
Low air temperature (lower-15 than a °C) |
|
Warm the engine: establish a cowl thermonoise isolation, guards before a radiator (do not block all area of a radiator in a zone of a krylchatka of the fan!) |
Falling of level of cooling liquid in a broad tank |
Damage of a radiator, hoses, weakening of their fastening on branch pipes. Dribble of liquid from the heater crane |
Survey. Tightness of radiators (the engine and a heater) is checked in a bathtub with hot water compressed air under pressure of 2 kgfs/cm2 |
Replace the damaged details. Tighten collars on hoses |
Leak of liquid through an epiploon of the pump of cooling liquid |
Survey |
Replace the pump assembled |
Laying of a head of the block of cylinders is damaged. Damages of the block or head |
When replacing oil from a case the emulsion with a whitish shade pours out. Emergence of plentiful white smoke from the muffler and oil spots on the surface of liquid in a broad tank is possible. Begin to flow cooling liquid on the external surface of the engine |
Replace the damaged details. Do not use water in the cooling system, fill in the cooling liquid corresponding to climatic conditions |
Detonation (the metal knocks of high-pitch tone arising, as a rule, during the operation of the engine under loading, especially on low turns — dispersal "âíàòÿã", etc. — and disappearing at decrease in loading) |
Unacceptably low octane number of gasoline |
— |
Fuel the car, the recommended manufacturer |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", page 82, and "System of ignition of the car with the VAZ-2106 engine", page 89 |
Adjust an ignition advancing corner |
Engine overheat |
According to the index of temperature |
Remove the overheat cause (see. "The engine overheats", page 249) |
It is a lot of deposit in the combustion chamber, on the bottoms of pistons, plates of valves |
Survey after removal of a head of the block of cylinders of the engine |
Remove the cause of a nagaroobrazovaniye (see. "The increased fuel consumption", page 247, "The raised oil consumption", page 249). Apply oils of the recommended viscosity and, whenever possible, with a low ash-content |
Candles with inappropriate kalilny number are used |
— |
Use the candles recommended by manufacturer |
Extraneous noises and knocks in the engine (except a detonation, see above) |
Gaps in the drive of valves do not meet standard |
Easy uniform knock in a zone of a head of the block of cylinders. Measure gaps by the probe |
Adjust gaps |
Draft or breakage of valvate springs |
Examine springs, measure their length in a free state and under loading |
Replace faulty springs |
The chain of the drive of the gas-distributing mechanism is not tense or worn-out. The natyazhitel of a chain is faulty |
The uniform noise in a forward part of the engine amplifying at average turns and variable loadings |
Pull a chain, if necessary replace a chain, a natyazhitel |
Knock of cranked and distributive shaft, conrod bearings, pistons, piston fingers, side play or jamming of bearings of the pump of cooling liquid |
Check on HUNDRED |
Repair of details on HUNDRED or replacement |
Strong vibration of the engine |
Unevenness of a compression on cylinders more than 2 kgfs/cm2: wear or damage of valves or their saddles; wear, bedding or breakage of piston rings |
Warm up the engine up to the working temperature and turn out candles. Completely press a pedal of "gas" and, inserting into candle openings êîìïðåññîìåòð, turn a bent shaft a starter (work together). At the same time it is necessary to close a high-voltage wire of the coil of ignition on "weight". Repeat measurements, the gulf in cylinders through candle openings 10-15 ñìç engine oil. In those cylinders where the compression increased more, than on 2 kgfs/cm2, rings are perhaps strongly worn-out, broken or lay. If the compression remained lower than 10 kgfs/cm2, wear or damage of valves or their saddles is possible |
Replace rings, pistons. |
Damage of isolation of high-voltage devices and chains — interruptions in sparking |
Having reliably fixed the end of a high-voltage wire at distance of 8-10 mm from "mass" of the car, turn a bent shaft a starter (do not touch high-voltage chains!). Between a wire and "weight" the spark (for check use only obviously serviceable high-voltage wires) has to slip regularly. If the spark is absent on an ignition coil conclusion - the coil is faulty if on ignition distributor conclusions/conclusions - the rotor or a cover of the distributor are faulty. Breakdown of a rotor or cover is determined by progara or cracks on their surface. Serviceability of the resistor of a rotor (1 kOhm) is checked by an ohmmeter |
Replace the faulty coil, the damaged high-voltage wires. Under trying conditions (salt on roads, the frosts alternating with thaw) it is desirable for operation to replace wires of times in 3-5 years. |
High-voltage wires are connected to the ignition distributor in the wrong order |
Survey |
Connect wires according to an operating procedure of cylinders |
Candles are faulty |
The faulty candle, as a rule, can be determined by color of a deposit on the insulator (see at the end of the section "Diagnostics"). Lack of external damages and sparking between electrodes on the turned-out candle do not allow to draw a conclusion on its working capacity |
Replace faulty candles |
The gap between electrodes of candles does not meet standard |
The gap is checked by the round probe |
Of a side electrode establish by Podgibany the necessary gap or replace candles |
Strong deposit on electrodes of spark plugs; hit of particles of a deposit in a gap between electrodes |
Survey. It is possible to determine by a deposit, as a rule, operability of a candle and a condition of the engine (see at the end of the section "Diagnostics") |
Clear candles compressed air or mechanically (do not damage the insulator!). Establish and eliminate the reason of the raised nagaroobrazovaniye in the combustion chamber, if necessary replace candles |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", page 82, and "System of ignition of the car with the VAZ-2106 engine", page 89 |
Adjust an ignition advancing corner |
Easing or breakage of springs of small weights of the centrifugal regulator of an advancing of ignition, are lost damping ringlets of small weights, jamming of small weights |
Visually and at the special stand <HUNDRED> |
Replace the ignition distributor |
Jets and channels of the carburetor are littered. Jets are leaky wrapped |
Is defined by survey, a purge of channels and jets (see. "Power supply system", page 65) |
Blow jets, at strong pollution clean them a scaffold or a needle from a soft tree. Clean system of ventilation of a case. Densely wrap jets (do not damage a carving and a jet!) |
Adjustment of idling of the engine is broken |
See. "Power supply system", page 65 |
Adjust idling |
Suction of foreign air in an inlet pipe |
Examine joints, check reliability of fastening of hoses, unions, an inhaling of collars. For the period of start-up disconnect the vacuum amplifier of brakes, having pressed the corresponding hose |
Replace the torn laying, details with the deformed flanges, the faulty vacuum amplifier |
Cherezmerny level of fuel in the float-operated camera of the carburetor |
The strong smell of gasoline from an exhaust pipe, the cold engine is started up better, than hot. Uncover the carburetor, check tightness of a float, ease of its movement and lack of a zadevaniye for walls of the float-operated camera. For check of tightness of the needle valve turn a carburetor cover a float up and pump up gasoline the lever of the fuel pump. The slightest leak of gasoline from under a needle or the basis of the valve is inadmissible |
Replace the untight needle valve, adjust fuel level in the float-operated camera (see. "Power supply system", page 65) |
Insufficient level of fuel in the float-operated camera of the carburetor |
See. "Power supply system" (page 65) |
Adjust fuel level (see. "Power supply system", page 65) |
The reenriched mix because of a gasoline effluence in an engine case through the damaged diaphragm of the fuel pump |
Oil on the probe smells of gasoline, fire of a lamp of emergency pressure of oil on low turns of the engine is possible |
Replace the fuel pump or the damaged diaphragms; if in oil there is a lot of gasoline, then and oil |
Fastening of support of the power unit weakened |
Survey |
Tighten fastenings |
Lost elasticity or support of the power unit collapsed |
Survey |
Replace support |
The increased content of harmful substances in the fulfilled gases |
Excessive level of fuel in the float-operated camera of the carburetor |
The strong smell of gasoline from an exhaust pipe, the cold engine is started up better, than hot. Uncover the carburetor, check tightness of a float, ease of its movement and lack of a zadevaniye for walls of the float-operated camera. For check of tightness of the needle valve turn a carburetor cover a float up and pump up gasoline the lever of the fuel pump. The slightest leak of gasoline from under a needle or the basis of the valve is inadmissible |
Replace the untight needle valve, adjust fuel level in the float-operated camera (see. "Power supply system", page 65) |
The reenriched mix because of a gasoline effluence in an engine case through the damaged diaphragm of the fuel pump |
Oil on the probe smells of gasoline, fire of a lamp of emergency pressure of oil on low turns of the engine is possible |
Replace the fuel pump or the damaged diaphragms; if in oil there is a lot of gasoline, then and oil |
The starting arrangement or its drive are faulty or are not adjusted |
See. "Power supply system", page 65 |
Adjust the starting arrangement (see. "Power supply system", page 65), replace worn-out details |
Adjustment of idling of the engine is broken |
See. "Power supply system", page 65 |
Adjust idling (see. "Power supply system", page 65) |
Rupture of a rubber sealing ring of the screw of quality of mix |
Survey |
Replace a ring |
Jets and channels of the carburetor are littered. Jets are leaky wrapped, the backpressure valve of the accelerating pump is untight |
Examine, blow channels and jets |
Wash out gasoline or acetone and blow jets, at strong pollution clean them a scaffold or a needle from a soft tree. Densely wrap jets (do not damage a carving and a jet!) |
Easing or breakage of springs of small weights of the centrifugal regulator of the distributor of ignition, are lost damping ringlets of small weights, jamming of small weights |
Visually and at the special stand <HUNDRED> |
Replace the ignition distributor |
Indistinct operation of the vacuum regulator of an advancing of ignition: at vacuum removal the plate does not come back to a starting position, a big side play in the bearing |
Survey. The characteristic of the vacuum regulator is removed at the special stand <["> |
Eliminate jamming, replace the faulty vacuum regulator or the distributor of ignition assembled |
Wrong installation of the moment of ignition |
See. "System of ignition of the car with the engine UEPA-331", page 82, and "System of ignition of the car with the VAZ-2106 engine", page 89 |
Adjust an ignition advancing corner |
Damage of isolation of high-voltage devices and chains — interruptions in sparking |
Having reliably fixed the end of a high-voltage wire at distance of 8-10 mm from "mass" of the car, turn a bent shaft a starter (do not touch high-voltage chains!). Between a wire and "weight" the spark (for check use only obviously serviceable in/in wires) has to slip regularly. If the spark is absent on an ignition coil conclusion - the coil is faulty if on ignition distributor conclusions/conclusions - the rotor or a cover of the distributor are faulty. Breakdown of a rotor or cover is determined by progara or cracks on their surface. Serviceability of the resistor of a rotor (1 kOhm) is checked by an ohmmeter |
Replace the faulty coil of ignition, the damaged high-voltage wires. Under trying conditions (salt on roads, the frosts alternating with thaw) it is desirable for operation to replace wires of times in 3-5 years. Clear a cover and a rotor of the distributor of dirt and moisture, - replace the fused rotor resistor, the punched rotor, a cover |
Faulty spark plugs: leakage of current on cracks in the insulator or on a deposit on a thermal cone, bad contact in assembly of the central electrode |
The faulty candle, as a rule, can be determined by color of a deposit on the insulator (see at the end of the section "Diagnostics"). Lack of external damages and sparking between electrodes on the turned-out candle do not allow to draw a conclusion on its working capacity |
Replace faulty candles |
The increased resistance to an air stream in the inlet highway |
Check an element of the air filter, an inlet path (lack of foreign objects, leaves, etc.) |
Clear an inlet path, replace the polluted element of the air filter |
Butterfly valves of the carburetor are not completely closed |
On the removed carburetor on a gleam the crack between a butterfly valve and a wall of the mixing camera is visible |
The persistent screw of the lever of the gate achieve its full closing. At the same time the gate has to open easily, without jamming |
