Kohler-SDMO Oil Burning / Internal Engine Wear

Blue smoke from exhaust and rising oil consumption

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Safety Warning

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.

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Possible Causes

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

How to Fix / Troubleshooting

Safety first: Monitor oil level closely and avoid overfilling. Operate in a ventilated area.

  • Check oil level: Ensure oil is at correct level; drain excess if above MAX.
  • Inspect breather: Check crankcase breather for blockage that could force oil into intake.
  • Turbo inspection: Inspect turbocharger (if fitted) for oil in compressor outlet and intercooler piping.
  • Record consumption: Track oil usage over operating hours. High consumption indicates internal wear and need for engine overhaul.

Blue smoke is typically not fixable without internal engine work; schedule service with a diesel specialist.

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Repair Difficulty

Professional Required 5/5

Required Part

Turbocharger Assembly
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