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Thread: intermittent knock, Please help!

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  1. 04-17-2020, 06:35 AM #17
    bmorgil
    bmorgil is offline
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    A chip on the insulator is not good. The smell of gas, also not good. I think you have it fixed now. "Eagle Eye TJones" is the man!

    Needless to say we all await in great anticipation, the results of this! That was one loud and scary sounding knock.

    Could you post a picture or two of the suspect plug?

    Most plugs are damaged on installation. Besides the obvious "whoops" dropped it, pressure against the insulator while installing will crack it immediately. A chip is a solid indication of damage. In any event, you shouldn't install a spark plug with ANY visible damage to the insulator.
    Last edited by bmorgil; 04-17-2020 at 06:41 AM.
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