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    Help with installing a new water pump kit

    I am putting in a new water pump kit on<br />my 1978-1980 Mercury 20 hp. But the new <br />kit has 1 fiber washer and 2 rubber washers <br />that I did not see when I took the old<br />one apart. and they are all too small to <br />fit on the shaft. I do not see anywhere<br />that they might go...
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    Mercury OB info needed

    I just received a mercury 20 hp thunderbolt short shaft engine. I am unable to find the serial # since the plate has been removed. I removed the cover and the only # I found was 5765900 with a large M under it. The cover has blue stripes with: Mercury, 20, & thunderbolt writtings on it. The...
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