top end rebuild

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  • tlg1100
    Forum Sage
    • Dec 2008
    • 1447
    • Thomas

    #1

    top end rebuild

    going to rebuild top end do i need ring compresser or can i do it by hand? and cam timing, not stock cams and mark on end of cams is different setting than book . was going to try to put back together same way? dont want to degree cams just mark things put back same way. someone told me that it cant be done without degree wheel and all that process, I was hoping to mark everything cams, cam chainlinks and from tdc any advice?
  • Nessism
    Forum LongTimer
    GSResource Superstar
    Past Site Supporter
    Super Site Supporter
    • Mar 2006
    • 35788
    • Torrance, CA

    #2
    You should be fine regarding the cams if you install them with the sprockets oriented the same was as the stock cams.

    As for the rings, it can be done without a ring compressor but you need some extra hands and/or rig up something to hold the cylinder so it doesn't fall. Renobruce posted photos from when he installed the cylinder on his engine; he supported the cylinder from bungee cords so he could lower it in a controlled manor. Good idea that you could easily replicate.
    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

    • tlg1100
      Forum Sage
      • Dec 2008
      • 1447
      • Thomas

      #3
      cams

      when motor is at tdc my haynes book said notches are even with top surface of the head. my are not. vance@hines cams/ that is why i was not sure if i had to re- degree cams as i was told i would have to. or can i mark them, count links in cam chain and all that stuff and put back together. years ago i bent a valve, when i put it back together, i put cams in stock position, valves hit piston. i had a suzuki dealership fix it they told me that it had v@h cams and that they had to degree the cams took them for ever[four month] and they are the ones that told me everytime it was taken apart the cams would have to be degree,but i was thinking that if i was marking everthing, i could put it back same way. now i live 100 mile from any thing so would like to do it myself. thanks for your time and advice.

      Comment

      • Big T
        Forum LongTimer
        Past Site Supporter
        Super Site Supporter
        • Mar 2005
        • 12392
        • West Slope, OR

        #4
        Post up some pictures of your cam problem.
        1978 GS 1000 (since new)
        1979 GS 1000 (The Fridge, superbike replica project)
        1978 GS 1000 (parts)
        1981 GS 850 (anyone want a project?)
        1981 GPZ 550 (backroad screamer)
        1970 450 Mk IIID (THUMP!)
        2007 DRz 400S
        1999 ATK 490ES
        1994 DR 350SES

        Comment

        • Nessism
          Forum LongTimer
          GSResource Superstar
          Past Site Supporter
          Super Site Supporter
          • Mar 2006
          • 35788
          • Torrance, CA

          #5
          The key thing is the __ 1 mark on the cam sprocket, not the notches.
          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

          • SqDancerLynn1

            #6
            Normal degreeing requires that the cam sprocket bolt holes be elongated. so if you did not remove the sprockets you should be fine

            Comment

            • Guest

              #7
              TDC with #1 cylinder at the top of its stroke. Also make sure the crank trigger is pointing to the left at the 1&4 coil.
              #1 on the ehaust cam is pointing at the front head surface. #2 should be pointing about straight up. Count 20 pins from #2 (include pins over arrows) to #3 on the intake sprocket.

              Comment

              • knotzilla

                #8
                Does anyone have the link about the bungee cord supporting the cylinder technique, Ted

                Comment

                • Nessism
                  Forum LongTimer
                  GSResource Superstar
                  Past Site Supporter
                  Super Site Supporter
                  • Mar 2006
                  • 35788
                  • Torrance, CA

                  #9
                  Originally posted by knotzilla
                  Does anyone have the link about the bungee cord supporting the cylinder technique, Ted
                  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

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