Northern Lights OM944W3 Operator's Manual page 36

PROBLEM
High Oil Consumption
Engine Emits Black
or Gray Exhaust Smoke
Engine Emits
White Smoke
Troubleshooting
ENGINE
POSSIBLE CAUSE
Break-in period
Crankcase oil too light
Oil leaks
Crankcase over full
Clogged or dirty air cleaner
Defective muffler
(back pressure too high)
Improper fuel
Fuel pump faulty
Injection nozzles dirty
Engine overloaded
Injection nozzles dirty
Injection pump faulty
Engine out of time
Incorrect valve clearance
Improper fuel
Cold engine
Defective thermostat
Engine out of time
Low Compression Pressure
Low engine oil viscosity
Excessive amount of engine oil
Fuel injection nozzles faulty
(uneven injection)
OM944W3 1/23
34
RECOMMENDATION(S)
• Oil consumption decreases after break in.
• Use proper viscosity oil.
• Check for leaks in lines around gaskets
and drain plug.
• Remove excess oil.
• Service air cleaner.
• Have dealer check back pressure.
• Use correct fuel for temperature.
• See your dealer.
• See your dealer.
• Reduce the electrical load.
• See your dealer.
• Consult your dealer.
• See your dealer.
• Consult your dealer.
• Use correct fuel for temperature.
• Warm up engine to normal operating
temperature.
• Remove and check thermostat.
• See your dealer.
• See your dealer.
• Use proper viscosity of oil to ambient
temperature.
• Maintain correct oil level.
• See your dealer.