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) |
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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 ignit |
