FG Wilson Engine Mechanical Knock

Generator produces abnormal loud knocking noise from engine

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

Injector malfunction causing detonation, Loose connecting rod bearings, Incorrect injection timing, Piston damage

Safety first: If a new loud knock develops, stop the generator immediately to prevent catastrophic damage.

Do not continue running: Severe knocking indicates internal engine issues that can worsen quickly.
Basic checks: Verify correct fuel type and that no recent incorrect repairs were made to injectors or timing.
Professional inspection: Arrange for an engine specialist to inspect injectors, timing, and internal components.

Professional Required 5/5

Fuel Injectors

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