Obsolete Housing to Cover Seal OMC 308292

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    caazi


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    #236656

    In the process of restoring a Johnson 1967 20HP and need to replace the now obsolete seal (OMC 0308292) in between the bottom motor cover and the exhaust housing. I have a sheet of foam gasket material that I am going to use to make the seal; what is the best option for adhering this, and on which sides, or both?

    Attached is a picture of the original seal for reference

    Thanks!

    Isaac

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    BRIAN RUPP

    US Member - 1 Year
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    #236658

    Just my first guess, but automotive weather strip adhesive should be safe on the foam. Most autobody stores carry it. Should say on packaging or manufactures webpage what mat’l it is safe for.

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    bobw
    bobw

    US Member - 1 Year
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    #236660

    I replaced that same seal on a ’72 Evinrude 25hp and just placed a small dab of gasket sealer in 4 or 5 spots on the underside of the seal to hold it in place. Didn’t see a need to put any on the top side – once the lower motor pan is in place and bolted down, the seal is sandwiched tight.

    Bob

    1954 Johnson CD-11
    1956 Johnson RD-18
    1958 Johnson QD-19
    1959 Johnson QD-20
    1957 Evinrude Fastwin 18

    "Every 20 minute job is only a broken bolt away from a 3-day project."

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