Home Forum Ask A Member 72T Lower Unit Disassembly

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  • #288218
    T….in Wisconsin
    Participant

      US Member

      Asking for advice on disassembling the lower unit.

      I’m not sure (see pic) if I have a dowel or screw with the head twisted off in one location.

      Thanks

      T…

       

       

      #288223
      stanley
      Participant

        US Member - 2 Years

        There are no “dowels”.

        #288224
        T….in Wisconsin
        Participant

          US Member

          Okay, so to confirm that’s a screw with the head twisted off.

          Is there any diagram available other than the Service Manual that’s been posted on this site.

          T…

           

          #288238
          The Boat House
          Participant

              This help? Tubs

            20240610_125354

            #288244
            Buccaneer
            Participant

              US Member

              I think I see the same plug on mine, but can’t remember what it’s for.

              DSCN8694

              Prepare to be boarded!

              #288249
              T….in Wisconsin
              Participant

                US Member

                Yes, pictures are a help.

                Thanks Buc & Tubs

                #288280
                T….in Wisconsin
                Participant

                  US Member

                  I’ve since learned, been informed, these are rivest and not screws with twisted off heads.

                  At this point in the process its good to know what you’re dealing with as replacement parts are a rarety.

                   

                  #288435
                  T….in Wisconsin
                  Participant

                    US Member

                    I was not able to completely seperate  the drive shaft housing from the prop drive unit.  I was able to slide it quit a distance but not comletely off the drive shaft, don’t know that I need to?

                    Water pump appears to be in good shape, may need to make a replacement leather gasket.

                    From what I can see the drive and prop shaft gears look to be in good conditon with very little backlash.

                    How do I go about removing the cam and prop shaft? I’d like to have a closer look, clean and grease while apart. I’m thinking the larger nut on the back side of drive shaft housing needs to be loosened/removed.  Are there any words of caution in disassembly? looks to be straight forward.

                    I’m thinking the pockets in the prop shaft housing are to be packed with grease, rather neat design.

                    T…

                     

                     

                     

                    #288449
                    The Boat House
                    Participant

                      The prop shaft should come straight out. Slide off the drive shaft gear, you might have to take out the key, and you will be able to remove the drive shaft. This is a 26 T but they should be similar. Tubs

                      #288451
                      T….in Wisconsin
                      Participant

                        US Member

                        If I’m following this correctly. The prop shaft will slide out from position shown in this pic. Pulling up/out on the shaft it hanging up on what I’m not sure. I’ve tried rotating the prop shaft while pulling up/out. I’m missing something.

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