101
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 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.
Leak in inlet manifold.
Check / replace.
Faulty turbo compressor.
Check / replace.
Intercooler dirty.
Check/clean.
Incorrect valve clearance.
Adjust.
6 Engine overheats
Possible fault
Remedy
Motor becomes apparently
overheated 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.
Leaking fuel supply line or fuel
injection line.
Check / replace.
Air in fuel system.
Check and bleed.
Intake valve blocked.
Check /replace
Incorrect valve clearance.
Adjust.
Summary of Contents for D-LINE VD4.120
Page 2: ...ii ...
Page 132: ...130 ...