1950 – 1953 Fleetwin Prop Shaft Seals

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  • July 9, 2017 at 4:42 pm #7594
    Buccaneer
    Participant

      US Member

      Looking for a modern replacement for prop shaft seal 202686,
      for the 1950 to 1953 Evinrude Fleetwins.

      The prop shaft seal is an oddball size, of .594 or 19/32" shaft size,
      and the OD is .875, or 7/8".

      Doesn’t appear to be a SKF / CR replacement in the charts,
      but I thought perhaps in the last 67 years another OMC
      product would have used the same prop shaft size,
      and that if I could find propeller data showing "bore" size
      as the same as I’m looking for, then I might be able to match
      up the OD.
      Anyone have any good prop data with bore sizes that
      shows a bore to fit a prop shaft of .594 or 19/32" ?
      Thanks!

      Prepare to be boarded!

      July 9, 2017 at 8:46 pm #61306
      garry-in-michigan
      Participant

        Lifetime Member

        This is what I found – hope it helps . . . 🙂

        July 9, 2017 at 9:15 pm #61309
        Buccaneer
        Participant

          US Member

          Thanks Garry, It appears that no latter models used
          a prop shaft .594 in diameter at the seal.
          Only seal I see with the correct OD of .875 is
          for a 1/2" shaft. Even if one turned down the
          Fleetwins prop shaft .094 to make the seal fit,
          then the prop bushing is going to be a tad sloppy 😮

          Prepare to be boarded!

          July 10, 2017 at 1:16 am #61325
          Anonymous

            Wonder how much latitude there is. Looked at a place called Marco Rubber and found one .609 and .887. The O-ring store has a similar one except they give +/- tolerances. Not sure if this would work??? McMaster Carr has them, labeled as -208 in the chart at the following link
            https://www.mcmaster.com/#o-rings/=18fgvdf

            Be interested to see where this goes as I have a ’52 Fleetwin in the schedule (somewhere).

            Kirk

            July 10, 2017 at 3:25 am #61335
            Anonymous

              The SKF search page at http://www2.chicago-rawhide.com/popup_p … 457010.htm
              found a couple of seals with 0.594 shaft diameter, but they’re all over 1" O.D.

              The closest one under 1" OD is #5904 for a 0.591 shaft w/ 0.829 OD

              July 10, 2017 at 5:47 am #61342
              Mumbles
              Participant

                You could make an adapter if you use the seal with the smaller OD.

                Attachments:

                July 10, 2017 at 12:12 pm #61347
                Buccaneer
                Participant

                  US Member

                  Thanks for the replies.
                  Kirk, are you suggesting using an O-ring instead of a regular seal?
                  Even if you made a retainer for an O-ring, I wonder how effective
                  it would be keeping water out of the gear case?

                  Mumbles & Phil,
                  Yes, I noticed all the .594 shaft size seals are over one inch OD.
                  Pretty sure there’s not enough meat to bore the OD in the cap that much.
                  I had not seen the seal Phil mentions with the .591 shaft size and .829 OD.
                  These seals "might" work if I did as Mumbles suggest, and made a .024 wall sleeve
                  to make up the difference in OD? Those seals are very thin, but perhaps they could
                  be doubled up.
                  Any tips on making a sleeve that thin? I have an old lathe, but
                  not sure on my machining skills making something that thin!

                  Thanks for the ideas!

                  Prepare to be boarded!

                  July 10, 2017 at 12:22 pm #61348
                  RICHARD A. WHITE
                  Participant

                    Lifetime Member

                    Give me ID, OD, and how " tall" you want it….

                    http://www.richardsoutboardtools.com
                    classicomctools@gmail.com

                    July 10, 2017 at 12:39 pm #61349
                    Anonymous

                      Morning bucaneer. Nope, not making that suggestion. Just old and bad eyes. When I looked at the page Garry posted it looked like o-rings to me. Though it strange at the time .
                      Sorry to confus that things.
                      Kirk

                      July 10, 2017 at 12:39 pm #61350
                      Buccaneer
                      Participant

                        US Member

                        Thanks Richard, I ordered two of the seals that may work
                        with a sleeve / spacer for the OD. They’re stated as
                        transmission shift shaft seals. I will wait until I get
                        them and see if they’re worth of installing, and
                        perhaps contact you with dimensions if it’s something
                        I can’t do. I need to at least "try" making one if possible
                        seeing how I have a lathe in the corner, lol.

                        Prepare to be boarded!

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