C-12 Generator Set Engine Caterpillar

Engine Has Early Wear

Usage:

C-12 BCY

Probable Causes

Incorrect engine oil
Contaminated engine oil
Contaminated air
Contaminated fuel
Low oil pressure

Recommended Actions

Incorrect Engine Oil

Use engine oil that is recommended and change the engine oil at the recommended interval.

Contaminated Engine Oil

Drain the crankcase and refill the crankcase with clean engine oil. Install new engine oil filters.

If the oil filter bypass valve is open, the oil will not be filtered. Check the oil filter bypass valve for a weak spring or for a broken spring. If the spring is broken, replace the spring. Make sure that the oil bypass valve is operating correctly.

Contaminated Air

Inspect the air inlet system for leaks. Inspect all of the gaskets and the connections. Repair any leaks.

Inspect the air filter. Replace the air filter, if necessary.

Contaminated Fuel

Inspect the fuel filter. Replace the fuel filter, if necessary.

Contaminants in the fuel such as hydrogen sulfide and sulfur can lead to the formation of acids in the crankcase. Obtain a fuel analysis.

Low Oil Pressure

When some components of the engine show wear in a short time, the cause can be a restriction in a passage for engine oil.

Caterpillar Information System:

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