Clutch hub movement

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  • Guest
    #1

    Clutch hub movement

    Clutch hub movement

    Just installed my clutch hub and after tighten the APE nut with the torque washer and lock washer there is quite a bit of movement.... is this normal?
    I have taken it on and off twice and cant see why?

    I dont think there should be moment.
    Took it all apart and the nut runs to the end of the thread..... used a rattle gun and moment?
    help?
    Tags: None
    • Guest
      #2
      Right I have worked out what it is... its the steel insert in the clutch center.... how bad is this?

        Comment

        • uk gs nut
          Forum Mentor
          • Feb 2011
          • 691
          • Co durham uk
          #3
          I had my clutch centre boss ground down, just about 10 thou thicker than the clutch hub centre. Helical cut primary gears make the clutch hub move in and out on the bearing.
          My bikes 79 GS1000 1085 checked and approved by stator the GSR mascot :eagerness: and 77 GS750 with 850 top end, GS850g, and my eldest sons 78 GS550, youngest sons GS125. Project bike 79 GS1000N

            Comment

            • londonboards
              Forum Sage
              Past Site Supporter
              • Aug 2012
              • 1168
              • Canterbury, UK
              #4
              Is this the problem?



              If you have a steel insert in your hub and it looks like this then it's toast I'm afraid.


              If it is indeed as UK GS NUT says (lateral movement and not the inner steel insert), you could try shimming it with the shims they used on the GSX1100 / GS1150 motors. They come in different thicknesses to solve the problem of lateral movement on the shaft and as stated above, caused by the fact that the helical primary gears are constantly trying to move the clutch from side to side.

              And there is no need to panic too much. All these clutches make noise. The springs on the back of the primary drive plate rattle, the oil pump drives gear flaps about a bit (unless you have a fresh little rubber bung in there), the hub spacer is too large etc etc.

              Just listen to one of those open Ducati dry clutches. They make a feature of all the rattling and people love it!

              Greetings
              Last edited by londonboards; 08-05-2017, 07:53 AM.
              Richard
              sigpic
              GS1150 EF bought Jun 2015
              GS1150 ES bought Mar 2014: ES Makeover Thread AND blog: Go to the Blog
              GS1100 G (2) bought Aug 2013: Road Runner Project Thread AND blog: Go to the Blog
              GS1100 G (1) Dad bought new 1985 (in rebuild) see: Dad's GS1100 G Rebuild AND blog: Go to the Blog
              Previously owned: Suzuki GS750 EF (Canada), Suzuki GS750 (UK)(Avatar circa 1977), Yamaha XT500, Suzuki T500, Honda XL125, Garelli 50
              Join the United Kingdom (UK) Suzuki GS Facebook Group here

                Comment

                • GSXR7ED
                  Forum LongTimer
                  Past Site Supporter
                  • Dec 2012
                  • 10146
                  • DE via L.A.
                  #5
                  Interesting situation.


                  Ed
                  GS750TZ V&H/4-1, Progressive Shocks, Rebuilt MC/braided line, Tarozzi Stabilizer[Seq#2312]
                  GS750TZ Parts Bike [Seq#6036]
                  GSX-R750Y (Sold)

                  my opinion shouldn't be taken as gospel or in any way that would lead you to believe otherwise (30Sep2021)

                    Comment

                    • Guest
                      #6
                      Yep steel insert is moving... toast is the word.
                      Its not as bad as in the video... will the bike be ok to do 600km trip?

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