Westinghouse Engine Oil Leak

Oil leaking under generator, oil spots on concrete pad

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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

Loose oil filter, loose drain plug, damaged crankcase gasket, overfilled oil level causing breather discharge

How to Fix / Troubleshooting

Safety first: Turn controller to OFF, open main AC breaker, and allow engine to cool before touching hot surfaces.

  • Locate leak source: Wipe down the engine and then run briefly to see where fresh oil appears (technician-level). Common points are the oil filter, drain plug, and valve cover gasket.
  • Tighten filter and plug: Hand-tighten the oil filter an additional 1/4–1/2 turn if loose. Snug the drain plug with a wrench, avoiding overtightening.
  • Check oil level: Ensure oil is not overfilled above the FULL mark, which can force oil out of the breather.
  • Replace gaskets if needed: If leaks persist at gaskets, replace the affected gasket (e.g., valve cover) using OEM parts.
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Repair Difficulty

Medium 3/5

Required Part

Engine Oil Filter
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