Home Forum Ask A Member Help With a Martin 75 Twist Shift Neutral Clutch

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  • #72185
    hiram1914
    Participant

      Maybe these would help.


      Attachments:

      #72197
      Tubs
      Participant

        Thanks hiram1914 for the copy’s from the parts manual.
        They look to be similar if not the same as what Buccaneer
        posted. I did try pulling up on the rod Tom but no luck.
        Before I took it apart I could turn the prop backwards
        with out the flywheel turning but not forward so the
        drive shaft must be split in there somewhere. It may just
        be stuck. The recoil was stuck and wouldn’t engage and
        both butterflies in the carburetor were stuck. I think
        I’ll take off the drive shaft gear and try slipping everything
        out hoping it all stays together I don’t understand how it
        works from the diagram. Maybe it will make more sense
        when I get it all out. Thanks again.

        A "Boat House Repair" is one that done without having tools or the skills to do it properly.

        #72234
        Buccaneer
        Participant

          US Member

          I’ve had one Gale product neutral clutch spring that had the
          tang broke off, therefore when the neutral lever was
          activated, no neutral. With the aid of my torch I re-bent
          the tang, and it worked again. Perhaps your Martin
          has a similar problem.

          Prepare to be boarded!

          #72244
          Tubs
          Participant

            A "Boat House Repair" is one that done without having tools or the skills to do it properly.

            #72248
            frankr
            Participant

              US MEMBER PAY BY CHECK

              That is exactly how a TN-xx Johnson clutch operates. Not unfamiliar at all, they made umpteen thousands of them. Just a different shape. Other companies also used the basic design theory (i.e. Evinrude, Gale, Mercury, Champion to name a few).

              #72249
              Buccaneer
              Participant

                US Member

                Looks pretty good inside Tubs. Must just be a matter of adjustment
                to get the neutral shift working. Wonder where the your water pump
                plate went?
                My Martin TS 75 is a great runner, and has the "fun" little red button
                in the tiller handle to play with!

                Prepare to be boarded!

                #72264
                Tubs
                Participant

                  Somebody has been in this motor before me. All the
                  fasteners are loose. Even the spark plugs. The old
                  impeller was tied to the tiller. Apparently when the
                  motor got put back together the impeller pin and
                  plate were left out. Missing parts will be a big
                  problem because I wont know what they are. So far
                  the motor seems to be in good condition inside but it
                  needs coils, condensers, seals, impeller, that plate,
                  a prop shaft bearing, plugs and wires so far. Add
                  paint, decals, and a new grip so it looks as it did
                  and what ever else I may find and I’ll have more in
                  it than its worth. I seem to be and expert at doing
                  that but when you get a motor on the boat for the
                  first time and fire it up and it runs well none of
                  that stuff seem to matter. If it doesn’t run well
                  or won’t even start? Well I guess I just didn’t spend
                  enough.
                  😥

                  A "Boat House Repair" is one that done without having tools or the skills to do it properly.

                  #72296
                  jcrigan
                  Participant

                    US Member

                    I just measured the pin that goes to the water pump impeller. It is made of brass and is 0.100" X 0.625". If you need to make that plate I could send you a template of the one I have.

                    #72306
                    wbeaton
                    Participant

                      Canada Member

                      I feel your pain, Tubs. I’m currently fighting with a 1950 Martin 60. What’s worse is it isn’t mine and I’m not getting paid to fix it.

                      Wayne
                      Upper Canada Chapter

                      uccaomci.com

                      #72308
                      Tubs
                      Participant
                        quote John C:

                        I just measured the pin that goes to the water pump impeller. It is made of brass and is 0.100″ X 0.625″. If you need to make that plate I could send you a template of the one I have.

                        John,
                        Thanks for the pin dimensions.

                        twostroke has PM’ed me that he will be seeing someone
                        in a couple weeks that should have the plate. If that
                        doesn’t work out I’ll be getting in contact with you.
                        Thanks for thinking of me.

                        A "Boat House Repair" is one that done without having tools or the skills to do it properly.

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