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9 Troubleshooting
Fault finding table
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 impel-
ler.
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.
Insufficient intake air.
Check / replace air intake filter.
Leak in inlet manifold.
Check / replace.
Faulty turbo compressor.
Check / replace.
6 Engine overheats
Possible fault
Remedy
Motor becomes apparently
overheated as a result of faulty
temperature switch, sensor or
meter.
Check / replace.
Summary of Contents for DT4.70
Page 1: ...Operation manual DT4 70 DTA4 85 ...
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