78 ENGINE TROUBLESHOOTING
7/26E, 7/31E, 7/41
This item contains a simple troubleshooting. When a failure takes place on your engine, diagnose the cause referring this troubleshooting. Should
the cause of failure not be detected or you are unable to manage the failure, consult your machine supply source or nearest company engine service
outlet.
Engine does not start
Starter does not turn.
Battery discharged
Bad cable connections.
Starter or starter switch failure.
Safety relay failure.
Starter turns but engine does not
fire.
No fuel injection.
Engine stop solenoid malfunction.
No fuel in the fuel tank.
Clogged fuel filter element.
Air in the fuel system.
Control rack is stuck at no fuel
position.
Fuel is injected but engine does
not fire.
Incorrect preheating operation.
Faulty air heater.
Incorrect injection timing.
Low cylinder compression
pressure.
Engine stop solenoid not fully
returned.
Engine fires but stalls
immediately.
Air in the fuel system.
Incorrect low idle speed adjustment.
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