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  1. #1

    Join Date
    Jun 2006
    Pemberton, NJ

    Pinhole leak from 951 exhaust plug.

    I have just finished installing a new manifold to repair a water leak. Now I have a pin hole leak from one of the plugs on the underside of the head pipe. Any easy fixes? Epoxy maybe? Are these plugs available after market?
    thanks for any info.

  2. #2
    They are a common failure. I believe they are casting plugs.

    Most epoxy them. A better fix is to weld it.

    This late in the season id epoxy it, remove the manifold over the winter, remove the epoxy and weld it and the other casting plugs.

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