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OPERATION
OPERATION
Problem
Excessive oil consumption
Exhaust gas is white or bluish
Exhaust gas is black
Engine hunts
Combustion noise occasionally
makes breathing sound
There is knocking (combustion or
mechanical)
Main causes
Oil leakage
Excessive oil in oil pan
Worn piston, ring, cylinder liner
Improper fuel
Defective turbocharger
Clogged air cleaner element
Worn piston, ring, cylinder liner
Defective compression
Defective turbocharger
Defective exchaust brake
Defective injector
Air entering suction side of fuel
line
Defective nozzle
Poor quality fuel being used
Overheating
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TROUBLESHOOTING
TROUBLESHOOTING
Remedy
( Check, repair)
Add oil to specified level. See
CHECK BEFORE STARTING
( Replace)
Replace with specified fuel
( Check, replace)
Clean or replace. See WHEN
REQUIRED
( Check, repair)
See adjustment of clearance
above
( Check, replace)
( Check, replace, repair)
( Check, adjust, repair)
( Repair place where air is leaking
in)
( Replace nozzle)
Replace with specified fuel
See "Engine water temperature
gauge is in red range" above
3 - 139
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