Removing PTFE Sleeve Bearings

Advert

Removing PTFE Sleeve Bearings

Home Forums Workshop Tools and Tooling Removing PTFE Sleeve Bearings

Viewing 7 posts - 26 through 32 (of 32 total)
  • Author
    Posts
  • #242872
    Gordon W
    Participant
      @gordonw

      What bike is this off ? Just for interest. Only time I've seen this sort of fork bearing the bushes were split, as if made from rolled plate. A light -weight machine but can't remember what.

      Advert
      #242882
      Jeff Dayman
      Participant
        @jeffdayman43397

        If this job is for a production motorcycle and the bushing is in fact a serviceable item there s probably a factory tool or procedure for getting the bushings out. If it is a Japanese made machine I would look in the online bike ads for a replacement, a procedure, or a factory tool.

        Since you say the bushes are PTFE coated I would guess the machine is from the 1970's or later. In that case replacements are likely available unless it's a rare make like a Hodaka or something.

        Years ago I recall a friend had a three jawed fork bush tool with a conical wedge that expanded the jaws outward, then a slide hammer type extension was operated to yank out the fork bushings. I believe it was a factory tool for Suzuki dirt bikes with replaceable bushes. A few people shared the tool around but since factory replacement fork legs complete with new bushings and new seals for these bikes were about 12 dollars each at the time and a set of replacement bushings was 8 dollars, it didn't make much sense adding more labour cost fighting with the bushings- just replace the fork legs. They often had cracks or broken lugs or leaky seals anyway. JD

        #242885
        Michael Gilligan
        Participant
          @michaelgilligan61133
          Posted by Jeff Dayman on 15/06/2016 12:36:50:

          If this job is for a production motorcycle

          .

          Jeff,

          Unless I have misundertood … Ben has stated that the forks are Swiss, and made for a pedal cycle.

          MichaelG.

          #242886
          Jeff Dayman
          Participant
            @jeffdayman43397

            Sorry, I missed the pedal bike note.

            The three jaw puller type device I mentioned may work if it can be made small enough to get in the tube.

            Are bushings available to replace the ones now in the bike? or will Ben substitute bronze pressed in ones? JD

            #242891
            Martin Kyte
            Participant
              @martinkyte99762

              Ahhh all now becomes apparent. It's a push bike not a motorcycle. Now I understand why Michael G was worried about burst pressures and there was I thinking back to my Yamaha 750 rebuild and going

              "burst the fork leg ?. . . what !!!"

              Amazing how cross threaded these threads get.

              ;0)

              Martin

              #242897
              Ben Jones 5
              Participant
                @benjones5

                Yep, the bearings are fitted to a push bike suspension fork. The exact model is DT Swiss EXM130 **LINK**

                I had a brief chat with Dunlop BTL **LINK** and they have advised that the bearing is probably available (but to be sure would need to see them first hand).

                Will keep you posted.

                Thanks.

                #242911
                Michael Gilligan
                Participant
                  @michaelgilligan61133
                  Posted by Ben Jones 5 on 15/06/2016 14:44:34:

                  The exact model is DT Swiss EXM130 **LINK**

                  .

                  Wow!! … Those are beauties

                  The technical manuals are works of art, too … But unfortunately only appear to document the 'small service'

                  MichaelG.

                Viewing 7 posts - 26 through 32 (of 32 total)
                • Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

                Advert

                Latest Replies

                Viewing 25 topics - 1 through 25 (of 25 total)
                Viewing 25 topics - 1 through 25 (of 25 total)

                View full reply list.

                Advert

                Newsletter Sign-up