Vetus M3.28 Operation Manual page 60

7 Troubleshooting
3 Engine cranks but will not start, smoke from exhaust
Possible fault
Air in fuel system.
a
Faulty injector/injection pump.
b
Setting of stop valve incorrect.
C
Faulty glow plugs.
d
Incorrect valve clearance.
e
Incorrect injection timing after
f
overhauling of engine.
Insufficient intake air.
g
Wrong fuel quality or contami-
h
nated fuel.
Incorrect lube oil SAE class or
i
quality for ambient tempera-
ture.
58
Remedy
Check and bleed.
a
Check, replace if
b
required.
Check / adjust.
C
Check / replace.
d
Adjust.
e
Check / adjust.
f
Check.
g
Check fuel. Drain and
h
flush fuel tank. Replace
with new fuel.
Replace.
i
4 Engine starts but runs unevenly (rough idling) or stalls
Possible fault
(Nearly) Empty fuel tank.
a
Air in fuel system.
b
Fuel filter clogged with water
C
and/or contamination.
Leaking fuel supply line or fuel
d
injection line.
Faulty injector/injection pump.
e
Vent line of fuel supply tank
f
clogged.
Fuel supply line restricted.
g
Incorrect valve clearance.
h
Idle setting too low.
i
Exhaust restricted.
j
Wrong fuel quality or contami-
k
nated fuel.
Fault finding table
Remedy
Refill.
a
Check and bleed.
b
Check or replace.
C
Check / replace.
d
Check, replace if
e
required.
Check / clean.
f
Check / clean.
g
Adjust.
h
Check/ adjust.
i
Check.
j
Check fuel. Drain and
k
flush fuel tank. Replace
with new fuel.