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    Sealing of Cylinder Sleeve

    General question on practice within the GS group. I have my cylinders off as I tear down the engine to replace the broken rear cam chain guide. My uncle is a mechanical engineer who has done full restoration of Honda CB's.

    He is recommending that I heat the cylinders and then use green loctite between the cylinder sleeve and aluminum casting rather than just rely on the o-ring to prevent oil being drawn between sleeve and casting. This solves problems on the CB's with oil pumping and leaking at the head gasket.

    Any history on this being done with the GS engines?

    Thanks for the info/feedback.

    Dave
    Blog of my motorcycle projects - http://twowheeljunkie.wordpress.com/
    1981 Suzuki GS650L - Project Bike - Sold
    2013 Suzuki SFV650 - Sold
    2016 Ducati Multistrada 1200 Touring

    #2
    The orings worked fine for me I have not heard of anyone having a problem using them only.
    The big guy up there rides a Suzuki (this I know)
    1981 gs850gx

    1999 RF900
    past bikes. RF900
    TL1000s
    Hayabusa
    gsx 750f x2
    197cc Francis Barnett
    various British nails

    Comment


      #3
      Another vote here for "o-rings only".

      .
      sigpic
      mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
      hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
      #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
      #2 son: 1980 GS1000G
      Family Portrait
      Siblings and Spouses
      Mom's first ride
      Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
      (Click on my username in the upper-left corner for e-mail info.)

      Comment


        #4
        A lot of guys don't even bother with the O-rings. At worst you could get a little oil weepage, not a leak, from the cylinder block.
        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


          #5
          I have the 650 apart right now, next step is changing those o-rings.

          The ones in there now are probably good, but new ones came in the gasket kit, so they get changed.

          .
          sigpic
          mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
          hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
          #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
          #2 son: 1980 GS1000G
          Family Portrait
          Siblings and Spouses
          Mom's first ride
          Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
          (Click on my username in the upper-left corner for e-mail info.)

          Comment


            #6
            Originally posted by DaveP View Post
            General question on practice within the GS group. I have my cylinders off as I tear down the engine to replace the broken rear cam chain guide. My uncle is a mechanical engineer who has done full restoration of Honda CB's.

            He is recommending that I heat the cylinders and then use green loctite between the cylinder sleeve and aluminum casting rather than just rely on the o-ring to prevent oil being drawn between sleeve and casting. This solves problems on the CB's with oil pumping and leaking at the head gasket.

            Any history on this being done with the GS engines?

            Thanks for the info/feedback.

            Dave
            I've never seen any problem in this area on the roller bearing Suzukis. Point out to your uncle that they are an engine with very low oil pressure unlike the plain bearing Hondas. Barrel casting quality is better than the Hondas too - I've never seen a loose sleeve on a Suzuki but I have on a Honda...

            Basically, it's not a problem so don't try to fix it.

            Comment


              #7
              Suzuki color coded their cylinder blocks and cylinders so they can be matched together with the proper liners to get a proper amount of press fit. If you flip over the block you will see dabs of different colored paint indicating the fitment.
              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


                #8
                I'd say if you have them use them and if you don't it doesn't really matter. When I did my top end I was short shipped the orings and didn't realize it until I assembling it. I asked Ray and he said no sweat just leave them out.
                '84 GS750EF (Oct 2015 BOM) '79 GS1000N (June 2007 BOM) My Flickr site http://www.flickr.com/photos/soates50/
                https://farm5.staticflickr.com/4306/35860327946_08fdd555ac_z.jpg

                Comment


                  #9
                  That seems like a strong consensus. I received the o-rings with the new gasket set and will go with that.

                  Thanks,
                  Dave
                  Blog of my motorcycle projects - http://twowheeljunkie.wordpress.com/
                  1981 Suzuki GS650L - Project Bike - Sold
                  2013 Suzuki SFV650 - Sold
                  2016 Ducati Multistrada 1200 Touring

                  Comment

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