Clutch Hub Rebuild - need advice

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  • Nessism
    Forum LongTimer
    GSResource Superstar
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    • Mar 2006
    • 35783
    • Torrance, CA

    #1

    Clutch Hub Rebuild - need advice

    Shimmed the clutch springs per this instruction... http://www.theflyingbanana.com/clutchhub.htm

    Asked a friend to weld it back together and this is what he did. Is this going to be sturdy enough or should I get it welded all around each rivet?



    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection
  • Bribird

    #2
    I would vote to be on the safe side...and do a full weld on each. I dont really trust the strength of tack welds, also tell you buddy to turn the voltage up just a tad to get better burn in on the 2 filler welds on each rivet.

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    • posplayr
      Forum LongTimer
      GSResource Superstar
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      • Dec 2007
      • 23673
      • Tucson Az

      #3
      Ed

      What bike? For the 1100/1150's generally that backing plate is replaced with a thicker one. I'm pretty sure flying banana showed the diff in a pic.
      Jim

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      • Nessism
        Forum LongTimer
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        • Mar 2006
        • 35783
        • Torrance, CA

        #4
        Originally posted by posplayr
        What bike? For the 1100/1150's generally that backing plate is replaced with a thicker one. I'm pretty sure flying banana showed the diff in a pic.
        Jim
        GS1000. This repair is the same as the banana guy used, stock backplate. Just shim the springs so they don't rattle and stitch the thing back together.
        Ed

        To measure is to know.

        Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

        Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

        Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

        KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

        Comment

        • Dink

          #5
          IMNSHO doing a spot top and bottom of each rivet is a better way to go, as one single weld all the way around each rivet is more likely to crack, and the heat input will weaken the backing plate all the way around each rivet.

          Dink

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          • SqDancerLynn1

            #6
            . Last thing you want is for the clutch to come apart. Hard to say if the weld penatrated into the rivit ?

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            • Nessism
              Forum LongTimer
              GSResource Superstar
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              • Mar 2006
              • 35783
              • Torrance, CA

              #7
              Originally posted by SqDancerLynn1
              . Last thing you want is for the clutch to come apart. Hard to say if the weld penatrated into the rivit ?
              I'm not worried about the quality of the welds. The guy that did the work is a top notch machinist that spent many years building race cars and currently works in aerospace serving the R&D guys where I work.
              Ed

              To measure is to know.

              Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

              Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

              Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

              KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

              Comment

              • posplayr
                Forum LongTimer
                GSResource Superstar
                Past Site Supporter
                • Dec 2007
                • 23673
                • Tucson Az

                #8
                Ed


                The solution is a new clutch basket backing-plate, complete with heavy-duty springs and thicker rivets for good measure. It's all fairly easy to install -- you just need to pay attention to how things have been assembled as you dismantle the old basket. And dismantling is easy to do; just take the heads off the old rivets with an angle-grinder.






                I was pretty sure he swapped it out; that why he was showing how thin it was.


                Jim

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                • Nessism
                  Forum LongTimer
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                  • Mar 2006
                  • 35783
                  • Torrance, CA

                  #9
                  Originally posted by posplayr






                  I was pretty sure he swapped it out; that why he was showing how thin it was.


                  Jim
                  Hey Jim,

                  You need to go back and read the article. The guy did a hipo rebuild on his 1100 Katana clutch hub, but for his regular 1000, he just shimmed the springs.
                  Ed

                  To measure is to know.

                  Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

                  Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

                  Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

                  KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

                  Comment

                  • posplayr
                    Forum LongTimer
                    GSResource Superstar
                    Past Site Supporter
                    • Dec 2007
                    • 23673
                    • Tucson Az

                    #10
                    Ed

                    Actually I already know what to do. My ED has the heavy duty plate .
                    Jim

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                    • rapidray
                      Forum Guru
                      GSResource Superstar
                      • Oct 2006
                      • 8195
                      • So Cal

                      #11
                      Ed, every place that rebuilds clutch hubs welds the rivets ALL the way around. Why do you think that is? Ray.

                      Comment

                      • first timer
                        Forum Sage
                        • Aug 2002
                        • 3429
                        • Tucson, Arizona

                        #12
                        Ed, here is a pic of my clutch done by Stan Gardener



                        He went all the way around, if it's not to late I would seriously consider the heavier back plate, the stock stuff is notoriouly flimsy and is the cause 9/10 time for clutch failure. The kit it's self is pretty cheap, it's the labor that gets you and it looks like you have that covered.
                        78 GS1000 Yosh replica racer project, 82 Kat 1000, 10 990 ADV-R, Some dirt bikes

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                        • Bribird

                          #13
                          hey first timer....now those are pretty welds and it looks like they are burned in very nice!

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                          • rapidray
                            Forum Guru
                            GSResource Superstar
                            • Oct 2006
                            • 8195
                            • So Cal

                            #14
                            Hey first timer, whatcha buildin?!!! More pics of all the other parts & chassis please! Ray.

                            Comment

                            • first timer
                              Forum Sage
                              • Aug 2002
                              • 3429
                              • Tucson, Arizona

                              #15
                              Originally posted by rapidray
                              Hey first timer, whatcha buildin?!!! More pics of all the other parts & chassis please! Ray.
                              sorry to hi jack Ed,



                              frame is stock right now, but am going to follow the bracing that is post on the oldskool suzuki site
                              78 GS1000 Yosh replica racer project, 82 Kat 1000, 10 990 ADV-R, Some dirt bikes

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