Loud knocking in the engine
Malfunction | Cause/Remedy |
Dirt in the fuel system | Replace nozzles. Blow out the fuel lines |
Insulators, copper gaskets installed incorrectly. Burnt insulators, nozzle holders. Nozzle holders are over tightened | Replace defective parts Install correctly |
Glow plug stem broken, burnt | Replace faulty spark plug |
Air in the fuel system | Check tight connections |
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