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Fault finding table
Troubleshooting
Possible fault
a
Air in fuel system.
b
Faulty injector/injection pump.
C
Setting of stop valve incorrect.
d
Faulty glow plugs.
e
Incorrect valve clearance.
f
Incorrect injection timing after
overhauling of engine.
G
Insufficient intake air.
h
Wrong fuel quality or contami-
nated fuel.
i
Incorrect lube oil SAE class or
quality for ambient tempera-
ture.
Possible fault
a
(Nearly) Empty fuel tank.
b
Air in fuel system.
C
Fuel filter clogged with water
and/or contamination.
d
Leaking fuel supply line or fuel
injection line.
e
Faulty injector/injection pump.
f
Vent line of fuel supply tank
clogged.
G
Fuel supply line restricted.
h
Incorrect valve clearance.
i
Idle setting too low.
j
Exhaust restricted.
k
Wrong fuel quality or contami-
nated fuel.
l
Clogged filter of electric fuel lift
pump.
3 Engine cranks but will not start, smoke from exhaust
4 Engine starts but runs unevenly (rough idling) or stalls
Remedy
a
Check and bleed.
b
Check, replace if
required.
C
Check / adjust.
d
Check / replace.
e
Adjust.
f
Check / adjust.
G
Check.
h
Check fuel. Drain and
flush fuel tank. Replace
with new fuel.
i
Replace.
Remedy
a
Refill.
b
Check and bleed.
C
Check or replace.
d
Check / replace.
e
Check, replace if required.
f
Check / clean.
G
Check / clean.
h
Adjust.
i
Check/ adjust.
j
Check.
k
Check fuel. Drain and
flush fuel tank. Replace
with new fuel.
l
Check / clean.
