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7 Troubleshooting
10A
Blue exhaust smoke (idling)
Possible fault
Oil level too high.
a
Excessive inclination of engine.
b
10B
Black exhaust smoke (at load)
Possible fault
Insufficient intake air.
a
Faulty injector / injection pump.
b
Engine overloaded, max. rpm
C
is not reached.
Remedy
Lower level.
a
Check / Adjust.
b
Remedy
Check.
a
Check / replace if
b
required.
Check sizes of propeller.
C
10C
White exhaust smoke (at full load)
Possible fault
Air in fuel system.
a
Faulty injector/injection pump.
b
Water in fuel system.
C
Faulty glow plugs.
d
Incorrect valve clearance.
e
Incorrect injection timing.
f
Wrong fuel quality or contami-
g
nated fuel.
Vapour in exhaust gases con-
h
denses as a result of very low
ambient temperature.
Fault finding table
Remedy
Check and bleed.
a
Check, replace if
b
required.
Check water separator.
C
Check / replace.
d
Adjust.
e
Check / adjust.
f
Check fuel. Drain and
g
flush fuel tank. Replace
with new fuel.
-
h
61
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