97
Fault finding table
9 Troubleshooting
6 Engine overheats
Possible fault
Remedy
Faulty injector/injection pump.
Check, replace if required.
Sea cock closed.
Open.
Raw water strainer clogged.
Check / clean.
Faulty raw water pump impeller.
Check / replace.
Leak in raw water feed system.
Check / replace.
Coolant level too low.
Check / top up.
Faulty coolant pump.
Check / replace.
Faulty thermostat.
Check / replace.
Leak in coolant circuit .
Check.
Heat exchanger dirty or clogged as a
result of rubber particles from a worn
impeller.
Check / clean.
Oil level too low.
Increase level.
Oil level too high.
Lower level.
Faulty oil filter.
Replace.
Faulty oil heat exchanger.
Replace.
Insufficient intake air.
Check / replace air intake filter.
Faulty turbo compressor.
Check / replace.
Motor becomes apparently overheat-
ed as a result of faulty temperature
switch, sensor or meter.
Check / replace.
7 Engine not firing on all cylinders
Possible fault
Remedy
Fuel supply line restricted.
Check / clean.
Fuel filter clogged with water and/
or contamination.
Check or replace.
Faulty electric fuel pump.
Check / replace.
Faulty injector/injection pump.
Check, replace if required.
Electric fuel pump filter blocked.
Check / clean.
Leaking fuel supply line or fuel
injection line.
Check / replace.
Air in fuel system.
Check and bleed.
Intake valve blocked .
Check /replace