LTC Repair Lombardini Engine Troubleshooting
wc_tx000364gb.fm 75
5.14 General Engine Troubleshooting
Possible Cause Symptom
Engine will not crank
Engine does not start
Engine starts, but stops
Poor acceleration
Unsteady rpm
Black smoke
White smoke
Blue smoke
Low oil pressure
Oil level rising
Excessive oil consumption
Wet exhaust
Overheating
Engine knocks
Low fuel level •• •
Fuel supply/return lines
clogged
••••
Clogged fuel tank vent ••
Fuel pump faulty •• •
Fuel contaminated with air ••••
Unit injector(s) faulty/worn • •••• • •
Unit injector settings incorrect •••• •••
Injection pump rack sticking •••
Oil level too high ••• • •••
Improper oil viscosity •••
Oil diluted by fuel •••••
Oil pressure relief valve faulty •
Oil pick-up tube clogged •
Oil pump air contaminated at
pick-up tube
•
Glow plugs faulty ••
Glow plug controller faulty •
Glow plug relay inoperable •
Starter defective •
To Next Page
Loading...