1964 OMC 9.5 Gearcase Stuck Bolts

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  • March 24, 2024 at 2:38 pm #286205
    jerryswiss
    Participant

      The 6 flathead screw bolts on the gear case are stuck, it has probably never been off. The motor runs goods the gear case just leaks. I am thinking of putting grease in there, what kind is best?

      March 24, 2024 at 2:55 pm #286206
      Michael
      Participant

        International Member

        Impact driver with flathead screwdriver bit

         

        March 24, 2024 at 3:50 pm #286208
        crosbyman
        Participant

          Canada Member - 2 Years

          .. using a 1/4 inch impact driver  with a short… forward jolt then reversing usually breaks the bond… if they do not immediatly loosen up don’t force your luck

          sometimes  freezing   or heating the head bolt  can help break the bond   try seeping in  a release agent a few days

           

          patience bring joy….

          Joining AOMCI has priviledges 🙂

          March 24, 2024 at 7:30 pm #286214
          joecb
          Participant

            US Member

            For slotted or Philips head screws, I like the hand held “hammer blow” impact drivers. These give you both the loosening torque and most importantly simultaneously the downward force to engage the screw head.  Just be sure to use a well fitted driver bit….and a heavy hammer.

            Joe B

            March 25, 2024 at 11:04 am #286233
            The Boat House
            Participant



              To answer you question, this would be the best
              grease to use if you decide to go that way.
              Video Link – https://youtu.be/dAu2-zYmgGc?si=JOClxa35_5bMN4h0
              Tubs
              .

              March 25, 2024 at 7:26 pm #286245
              jeff-register
              Participant

                US Member - 2 Years

                Be sure to support the gearcase on the back side. You might blow a hole in the case otherwise. And a little patience,  solvent & heat will help as others already stated..

                Tubs,

                I couldn’t open your link. Is it my computer or ? interested in what you use.

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