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    Cobra water pump shaft

    Can the water pump shaft seal be replaced without re shimming the drive? If so is it as easy as it looks? Just remove the 2 bolts that hold the adapter on and replace the seal. Is it matters the drive is an 1987.
  2. D

    Need prop advice

    I have a Tracker 17' Bass boat with a 40hp Mariner. Someone decided they needed my prop more than I did. I bought a 10.375 x 13 3 blade aluminum prop. When I took the boat out today I got 5600 rpm and about 30 mph. I need to cut this down to 5000. Is this as easy as going up to a 17" pitch...
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