Vetus M4.55 Operation Manual page 78

7 Troubleshooting
7 Engine not firing on all cylinders
Possible fault
Air in fuel system.
Fuel filter clogged with water
and/or contamination.
Leaking fuel supply line or fuel
injection line.
Faulty injector/injection pump.
Fuel supply line restricted.
Faulty glow plugs.
Incorrect valve clearance.
Electric fuel pump filter bloc-
ked.
Faulty electric fuel pump.
76
Remedy
Check and bleed.
Check or replace.
Check / replace.
Check, replace if required.
Check / clean.
Check / replace.
Adjust.
Check / clean.
Check / replace.
8 Engine has little or no oil pressure
Possible fault
Oil level too low.
Blocked oil filter.
Faulty oil pump.
Excessive inclination of engine. Check / Adjust.
Incorrect lube oil SAE class or
quality for ambient tempera-
ture.
Oil pressure apparently too
low due to faulty oil pressure
switch, sensor or meter.
Fault finding table
Remedy
Increase level.
Replace.
Repair / replace.
Replace.
Check / replace.