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Diesel Engine Troubleshooting Symptoms
31
Lubricating Oil Consumption Excessive
This is symptom tree T-010.
Cause Correction
Lubricating oil leak (external)
Inspect the engine the external oil leaks.
Tighten the capscrews, pipe plugs, and fittings.
Replace the gaskets if necessary.
OK
Intake system is contaminated with dust
Remove and clean intake manifold.
OK
Dipstick is not calibrated correctly
Verify the dipstick is correctly marked.
OK
Breather or breather hose is clogged
Clean the breather and breather hose.
OK
Turbocharger compressor or turbine oil seal is
Leaking
Replace the compressor or turbine seal.
OK
Rear crankshaft seal or seal surface is
damaged
Repair or replace seal and surface.
OK
Valve stem, guide, or seal is damaged
Repair or replace the damaged component.
OK
Worn or broken piston ring or cylinder
Replace the worn or broken piston ring or
cylinder.