Himoinsa Internal Coolant Leak / Head Gasket Failure

Visible white smoke and coolant loss from the exhaust area during generator operation.

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

Blown cylinder head gasket, Cracked cylinder head, Eroded liner seals, Overheating history

Safety: Stop the generator immediately to prevent severe engine damage. Allow engine to cool before inspection.

Check coolant level: Verify rapid coolant loss in the expansion tank or radiator.
Inspect exhaust: White steam-like smoke and sweet smell indicate coolant burning in the cylinders.
Oil inspection: Check engine oil for milky appearance, indicating coolant contamination.
Do not run: Do not continue to operate the generator. Arrange for a diesel engine specialist to perform compression tests and inspect the head gasket and liners.

Professional Required 5/5

Cylinder Head Gasket

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