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  1. V

    Tilt trim motor ID

    I have a 1993 90hp Mariner with a single RAM 2-wire square base tilt trim motor that has the number 12224 stamped in the metal base at the front. I need to replace or repair it and would like anybody's help in either identifying it or recommending the replacement motor. The boat is at the lake...
  2. V

    Where did shift shaft coupler go?

    Nothing was on top of the lower shift shaft when I dropped the lower unit of a '93 90hp Mariner and nothing fell out to my knowledge. I recall(boat's at the lake) seeing the splines of the upper shift shaft in the upper unit and wondering how the two mated. Is the coupler in the upper unit...
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    Burned gasket diagnosis?

    Dropped the lower unit of a '93 90hp Mariner to change impeller. Found the lower gasket(between metal plate and pump base) charred. What does this typically indicate - overheating from gears below, failed driveshaft seals, or what? The outside of the impeller housing had a very thin layer of...
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