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Straightened My Crank

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    Straightened My Crank

    My 1000 crank was measuring .0033" runout when indicating off the center bearings, spec is .002", so decided to give a go at straightening it.

    Found the high spot, removed the V-blocks under the bearings, supported the pork chop weights with some solid chunks of aluminum, and wailed on the center pork chops while protecting them with another chunk of aluminum.

    After it was all said and done runout on the center bearings shows .001" on one side and .0017" on the other. Good enough.






    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

    #2
    Havin a bent crank is no way to go through life!!

    Great job!

    Comment


      #3
      Originally posted by jwhelan65 View Post
      Havin a bent crank is no way to go through life!!

      Great job!
      Depends on which way it's bent!
      http://img.photobucket.com/albums/v5...tatesMap-1.jpg

      Life is too short to ride an L.

      Comment


        #4
        Ed

        Your part of a line of great motorcycle "machinists"



        Pos

        P.S. I dont feel so bad about sanding my cam towers with 1000 grit now ; I'll admit it in public
        P.S 2: Worked great by the way.
        Last edited by posplayr; 01-21-2009, 01:57 AM.

        Comment


          #5
          Originally posted by posplayr View Post
          Your part of a line of great motorcycle "machinists"



          Pos

          P.S. I dont feel so bad about sanding my cam towers with 1000 grit now ; I'll admit it in public
          Can't see that photo of Pop's Jim, can you save it and post here?

          Got inspired to do the crank work after reading on an XS650 forum last night. Several guys pressing their own cranks apart/together so I figured a simple straightening job on my GS crank should be no sweat.

          Next project is to tackle that clutch hub! Going to grind those rivets off and see what can be done with the loose springs without spending a bunch of money.
          Last edited by Nessism; 01-21-2009, 11:00 AM.
          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


            #6
            Sure Ed

            Can't see that photo of Pop's Jim, can you save it and post here?

            Pops Yoshimura, hand filing a cam

            A while back, in another thread, I mentioned that somewhere I had a photo of Pops hand filing a camshaft. I dug it out tonight and shot a photo, so you guys could see it.

            I wish he were still with us. I miss his goofy, ****-eating grin.

            JR


            Comment


              #7
              Originally posted by Nessism View Post
              Next project is to tackle that clutch hub! Going to grind off those rivets off and see what can be done with the loose springs without spending a bunch of money.
              Oh good My Skunk is next
              1980 GS1000G - Sold
              1978 GS1000E - Finished!
              1980 GS550E - Fixed & given to a friend
              1983 GS750ES Special - Sold
              2009 KLR 650 - Sold - gone to TX!
              1982 GS1100G - Rebuilt and finished. - Sold
              2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

              www.parasiticsanalytics.com

              TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

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