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How to take apart the lower?

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  • How to take apart the lower?

    I picked up a 7.5hp merc, with a stuck drive shaft.

    the drive shaft is pretty rusted, and wont move one bit, forward, back, up down, or rotate. Ideas on what to do?

    The shift mechanism works fine, engages gears, and nuteral, and prop spins properly, I doubt there is a ground down/broken gear inside.








    I just don't know what to do from here. pipe wrench on the shaft and force it to turn?

    Why fix the thing and not ebay the parts? Exactly 100psi in each cylinder.


  • #2
    Re: How to take apart the lower?

    Soak it for a couple of days with PB blaster, then a little heat from a propane torch might break it loose. Be careful though.

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    • #3
      Re: How to take apart the lower?

      it is a merc, belongs in merc. not much similar, other than you use the same tools.
      FLORIDA GATORS
      TEBOW Country



      Please, NO PM's (Private Messages) regarding boat/engine problems. they will not be answered.
      That is what these forums are for. Post your questions, in the appropriate Forum.

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      • #4
        Re: How to take apart the lower?

        is this a common problem?

        http://cgi.ebay.com/ebaymotors/7-5-H...item20af542653

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        • #5
          Re: How to take apart the lower?

          Gave the pipe wrench trick a try:



          ...no luck

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