Diesel Engine Troubleshooting Symptoms
32
Lubricating Oil Contaminated
This is symptom tree T-011.
Cause Correction
Breather or breather hose is clogged
Clean the breather and breather hose.
OK
Lubricating oil filter is clogged
Replace the filter.
OK
Turbocharger turbine oil seal is damaged
Replace the turbine seal.
OK
Turbocharger turbine oil seal is damaged
Replace the turbine seal.
OK
Turbocharger turbine oil seal is
Damaged
Replace the turbine seal.
OK
Exhaust gas is black
Refer to Exhaust Gas Is Black (Incomplete
Combustion).
OK
Defective contact of valve or valve seat
resulting in low compression
Repair the valve or valve seat.
OK
Worn piston ring or cylinder resulting in low
Compression
Replace the worn piston ring or cylinder.
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