Engine Overheats; Engine Not Firing On All Cylinders - Vetus M Series Operation Manual

9 Troubleshooting

6 Engine overheats

Possible fault
Faulty injector/injection pump.
Sea cock closed.
Raw water strainer clogged.
Faulty raw water pump impeller.
Leak in raw water feed system.
Coolant level too low.
Faulty coolant pump.
Faulty thermostat.
Leak in coolant circuit .
Heat exchanger dirty or clogged
as a result of rubber particles
from a worn impeller.
Oil level too low.
Oil level too high.
Faulty oil filter.
Insufficient intake air.
Leak in inlet manifold.
Faulty turbo compressor.
Motor becomes apparently
overheated as a result of faulty
temperature switch, sensor or
meter.
Remedy
Check, replace if required.
Open.
Check / clean.
Check / replace.
Check / replace.
Check / top up.
Check / replace.
Check / replace.
Check.
Check / clean.
Increase level.
Lower level.
Replace.
Check / replace air intake filter.
Check / replace.
Check / replace.
Check / replace.

7 Engine not firing on all cylinders

Possible fault
Fuel supply line restricted.
Fuel filter clogged with water
and/or contamination.
Faulty electric fuel pump.
Faulty injector/injection pump.
Leaking fuel supply line or fuel
injection line.
Air in fuel system.
Faulty glow plugs.
Incorrect valve clearance.
Fault finding table
Remedy
Check / clean.
Check or replace.
Check / replace.
Check, replace if required.
Check / replace.
Check and bleed.
Check / replace.
Adjust.
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