114
9 Troubleshooting
Fault nding table
13 Black exhaust smoke (at load)
Possible fault Remedy
Faulty injector / injection pump. Check / replace if required.
Incorrect injection timing. Check / adjust.
Oil level incorrect. Check .
Insucient intake air, air lter
dirty.
Check/clean the lter .
Leak in inlet manifold. Check / replace.
Incorrect valve clearance. Adjust.
Excessive wear of cylinder /
piston.
Check compression; refurbish
engine.
Faulty turbo compressor. Check / replace.
Engine overloaded, max. rpm is
not reached.
Check sizes of propeller.
Engine overloaded, dirty propel-
ler -boat hull, excessive load
on-board.
Check /clean.
14 White exhaust smoke (at full load)
Possible fault Remedy
Faulty injector/injection pump. Check, replace if required.
Air in fuel system. Check and bleed.
Wrong fuel quality or contami-
nated fuel.
Check fuel. Drain and ush fuel
tank. Replace with new fuel.
Water in fuel system. Check water separator.
Incorrect injection timing. Check / adjust.
Faulty glow plugs. Check / replace.
Incorrect valve clearance. Adjust.
Vapour in exhaust gases con-
denses as a result of very low
ambient temperature.
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