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    Driveshaft Scored

    '63 75hp Evinrude<br /><br />My driveshaft and propshaft are a bit scored where the seals touch them (driveshaft a little more so than the propshaft). I assume it is from dirt or salt collecting on them over time. The depth of the grooves is around 1/64" or less, and I can feel the new seals...
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    What is water bypass port?

    On my 1963 75hp Evinrude, there is a small port on the lower unit that I cannot identify. I have all the manuals, and yet there is no mention of it. The port is on a plate called the "water bypass" plate in the parts manual, so I assume this is my water bypass port (or hole). It is threaded...
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