CAT Oil Burning / Internal Engine Wear

Generator emits blue smoke and consumes engine oil

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Worn piston rings, Valve stem seal wear, Turbocharger oil seal leak, Overfilled crankcase

Safety: Disable automatic start. Monitor oil level closely to avoid engine damage.

Check oil level: Ensure oil is not overfilled. Drain to correct level if necessary.
Observe smoke behavior: Note whether blue smoke is constant or mainly on startup and deceleration, which can help a technician diagnose.
Inspect breather system: Check crankcase breather hoses for blockage.

Internal engine wear or turbocharger seal failure requires professional diagnosis and repair by a CAT technician.

Professional Required 5/5

Turbocharger Assembly

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