There are next symptoms of engine fault which is possible to detect by visual, operational and audible signs.
Engine starts and immediately stalls
What is a reason of engine immediately stalls after start?
- Check the attachment of the distributor, ignition coil or generator;
- No vacuum in carburetor, vacuum hoses, intake manifold;
- Low fuel level in the tank;
- Idling running doesn`t not adjusted;
- Fuel system and fuel filter are contaminated;
- Air damper doesn`t working;
- Damage of wiring;
- Exhaust system fault;
- Fault of spark plugs;
- Incorrect valve clearances.
Misfire in the cylinders by idling.
- — Fault of spark plugs;
- — Damage of high voltage wires;
- — Oxidation of wire ends;
- — Fault of distributor breaker;
- — Short in wiring;
- — Incorrect ignition timing;
- — Low compression in cylinders;
- — The choke does not work;
- — Unsuitability of air filters;
- — fuel nozzle clogged;
What does it mean if the silencer shots:
- — spark plug does not work in one of the cylinders;
- — much rich mixture;
The engine runs unevenly:
- Cylinder head gasket is damaged;
- The air damper does not function;
- The fuel filter is clogged;
- Fault of spark plugs;
- Incorrect installation of the ignition timing
- Bad wiring contact;
- high voltage wire lugs are oxidized;
- fault of the ignition coil;
- exhaust gas recirculation valve is leaking;
- Clogged crankcase ventilation valve;
- The air filter is clogged;
- The fuel pump does not supply the enough amount of fuel;
- Don`t right valve clearances or the valves are loose.
- Carburetor or injectors are dirty;
- The idle running is not adjusted.
Revolutions pulsate when the accelerator is stationary:
- The fuel pump does not work right.