Removing a Broken Bolt in Motorcycle Cylinder Head

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

    #1

    Removing a Broken Bolt in Motorcycle Cylinder Head

    This video shows the effort that an experienced machinist goes through to fix a baffoon's boogered up handicraft.



  • Nessism
    Forum LongTimer
    GSResource Superstar
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    • Mar 2006
    • 35770
    • Torrance, CA

    #2
    Nice video. That Abom79 guy has lots of great videos. He's a master craftsman for sure.
    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

    • Cipher
      Forum Sage
      • Mar 2016
      • 3126
      • Toronto Ontario

      #3
      I posted this a while back and some guys took a crap on his skills. Apparently they can do better?
      This guys chan is lovely and full of useful interesting insights.
      1983 GS 550 LD
      2009 BMW K1300s

      Comment

      • Gorminrider
        Forum Sage
        Past Site Supporter
        • Aug 2012
        • 4803
        • British Columbia, Canada

        #4
        what could be better to watch on a Saturday morning? ...'course I wandered off to "Haas Tapping tips" and then drills and then drill sharpener comparisons...A nice break from the epidemic.

        Comment

        • bitzz
          Forum Apprentice
          • Nov 2015
          • 99

          #5
          Originally posted by Cipher
          I posted this a while back and some guys took a crap on his skills. Apparently they can do better?
          This guys chan is lovely and full of useful interesting insights.
          When you say "machine shop" a lot of folks picture what I would call an aerospace shop.
          Perfectly clean, big tool room with all the latest tools in every variation and CNC everything, cranking out parts to some theoretical exacting spec.

          A job shop is nothing like that. There is a LOT more sausage factory going on in a job shop.
          In a job shop it doesn't matter HOW you get the job done, the end result is what matters.

          This guy does stuff I disagree with, like in this video he is cutting into that head and the swarf is falling into the valve springs. NOT A GOOD THING! (Abom is a machinist and it doesn't matter to his job, the guy putting the bike back together might want to know about that) where all he had to do was ram a rag down the hole to catch the metal filings... but he didn't.

          Have you met Old Tony?

          Comment

          • Big T
            Forum LongTimer
            Past Site Supporter
            Super Site Supporter
            • Mar 2005
            • 12368
            • West Slope, OR

            #6
            Check out Allen Milyard on YouTube

            He creates multi cylinder bikes with a few machine tools
            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

            • Cipher
              Forum Sage
              • Mar 2016
              • 3126
              • Toronto Ontario

              #7
              Originally posted by Big T
              Check out Allen Milyard on YouTube

              He creates multi cylinder bikes with a few machine tools
              oh man hack saw and files this guy is amazing
              1983 GS 550 LD
              2009 BMW K1300s

              Comment

              • salty_monk
                Forum LongTimer
                GSResource Superstar
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                • Oct 2006
                • 14001
                • London, UK to Redondo Beach, California

                #8
                Yeah I watched on of his the other day... a 6 cylinder jug made with not a lot of tools. Reminds me of the guys that used to work for me in a tool shop (press & Injection tooling). They certainly had some (under appreciated) skills

                I've always put helicoils in with red loctite to stop them backing out. I noticed he didn't. I wonder what's best practice....
                Last edited by salty_monk; 04-29-2020, 01:44 PM.
                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/

                Comment

                • Cipher
                  Forum Sage
                  • Mar 2016
                  • 3126
                  • Toronto Ontario

                  #9
                  Originally posted by salty_monk
                  Yeah I watched on of his the other day... a 6 cylinder jug made with not a lot of tools. Reminds me of the guys that used to work for me in a tool shop (press & Injection tooling). They certainly had some (under appreciated) skills

                  I've always put helicoils in with red loctite to stop them backing out. I noticed he didn't. I wonder what's best practice....
                  His library of vids is a bit poorly catalogued.
                  What was the source of the head and cases and tranny? A KZ1300?
                  1983 GS 550 LD
                  2009 BMW K1300s

                  Comment

                  • salty_monk
                    Forum LongTimer
                    GSResource Superstar
                    Past Site Supporter
                    Super Site Supporter
                    • Oct 2006
                    • 14001
                    • London, UK to Redondo Beach, California

                    #10
                    I didn't watch that bit yet... only how he made the jugs & the crank. I believe the whole thing was cut & shut from 2 engines.
                    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/

                    Comment

                    • Grimly
                      Forum Guru
                      Past Site Supporter
                      Super Site Supporter
                      • Sep 2012
                      • 5741
                      • Ireland

                      #11
                      Originally posted by Cipher
                      His library of vids is a bit poorly catalogued.
                      What was the source of the head and cases and tranny? A KZ1300?
                      Going by what he's done with previous stretches, to use off-the-shelf parts would be too easy.
                      Dave
                      '79 GS850GN '80 GS850GT
                      Only a dog knows why a motorcyclist sticks his head out of a car window

                      Comment

                      • Big T
                        Forum LongTimer
                        Past Site Supporter
                        Super Site Supporter
                        • Mar 2005
                        • 12368
                        • West Slope, OR

                        #12
                        Cipher, yes, you need to search for videos

                        No, he has a video showing how he made the head and one on the barrels. He takes 2 four cylinders, cuts them up and creates a 6
                        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

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