Reply To: Mercury Mark 5, Water Inlet Cap Assembly

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March 29, 2023 at 5:52 am #274545
billw
Participant

    US Member

    Assuming the screws don’t snap off, the gasket surface can be cleaned by grinding a sharp edge on the end of a steel bar and scraping it back and forth until the surface is clean enough, then vacuum, etc. This takes a lot of patience and time; but that is a standard requirement for the Mark 5 and Silent Six, in general. I like Mercs, but let me tell you, most of those engines are truly silent for a REASON.

    Long live American manufacturing!