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750 TSCC Rebuild or Replace?

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    #61
    Look what soaking these in vinegar for a day and scrubbing with a brass brush can do. (The one on the left)



    Rich
    1982 GS 750TZ
    2015 Triumph Tiger 1200
    BikeCliff's / Charging System Sorted / Posting Pics
    Destroy-Rebuild 750T/ Destroy-Rebuild part deux

    Comment

      #62
      I told you that you were going to channel Chuck Hahn
      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

        #63
        Looking good
        Cowboy Up or Quit. - Run Free Lou and Rest in Peace

        1981 GS550T - My First
        1981 GS550L - My Eldest Daughter's - Now Sold
        2007 GSF1250SA Bandit - My touring bike

        Sit tall in the saddle Hold your head up high
        Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
        and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

        Comment

          #64
          Originally posted by Big T View Post
          I told you that you were going to channel Chuck Hahn
          Guilty
          My hand is all cramped up today from spray painting.
          Last edited by Rich82GS750TZ; 05-09-2020, 07:38 AM.
          Rich
          1982 GS 750TZ
          2015 Triumph Tiger 1200
          BikeCliff's / Charging System Sorted / Posting Pics
          Destroy-Rebuild 750T/ Destroy-Rebuild part deux

          Comment

            #65
            Good times!

            Thanks for sharing.

            Ed

            ****
            GS750TZ V&H/4-1, Progressive Shocks, Rebuilt MC/braided line, Tarozzi Stabilizer[Seq#2312]
            GS750TZ Parts Bike [Seq#6036]
            GSX-R750Y (Sold)

            my opinion shouldn't be taken as gospel or in any way that would lead you to believe otherwise (30Sep2021)
            Originally posted by GSXR7ED
            Forums are pretty much unrecognizable conversations; simply because it's a smorgasbord of feedback...from people we don't know. It's not too difficult to ignore the things that need to be bypassed.

            Comment

              #66
              Getting the donor engine prepped for install, I spent about 3 hours today cleaning up the base gasket surface on the block. As I’m moving the pistons out of my way I realize that #4 piston’s rings are not moving freely like the others. All rings on #4 are frozen into their recesses at their tightest diameter. I removed the ring from one side on the pivot pin (it subsequently vanished into the ether, lucky it didn’t go in my eye) and drove the pin through and removed the piston.

              I assume I’ve got to replace the rings on at least on this piston. How do I get them out? Soak in PB? Do I definitely have to replace all the rings on all pistons? That’s $120 more dollars I didn’t want to spend on this engine.

              Last edited by Rich82GS750TZ; 05-10-2020, 08:57 PM.
              Rich
              1982 GS 750TZ
              2015 Triumph Tiger 1200
              BikeCliff's / Charging System Sorted / Posting Pics
              Destroy-Rebuild 750T/ Destroy-Rebuild part deux

              Comment

                #67
                There is carbon in the ring land. Maybe some varnish too. You can try soaking the piston in carb dip to loosen. A better method is to first remove the rings though and then soak. Use an old ring, broken in half, to scrape out the old carbon. Just be careful to not scratch the aluminum.
                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

                  #68
                  Depending on how much time you have - I left the pistons with their stuck rings sitting in cans of paint thinners and ATF on the bench. By the time I got around to them they were all lovely and free and clean enough to lick your dinner off.
                  ---- Dave
                  79 GS850N - Might be a trike soon.
                  80 GS850T Single HIF38 S.U. SH775, Tow bar, Pantera II. Gnarly workhorse & daily driver.
                  79 XS650SE - Pragmatic Ratter - goes better than a manky old twin should.
                  92 XJ900F - Fairly Stock, for now.

                  Only a dog knows why a motorcyclist sticks his head out of a car window

                  Comment

                    #69
                    I think I’ll quit for tonight.
                    Last edited by Rich82GS750TZ; 05-14-2020, 07:26 PM.
                    Rich
                    1982 GS 750TZ
                    2015 Triumph Tiger 1200
                    BikeCliff's / Charging System Sorted / Posting Pics
                    Destroy-Rebuild 750T/ Destroy-Rebuild part deux

                    Comment

                      #70
                      Oh, Geeze!

                      Wash up and have a beverage.

                      Ed

                      ****
                      GS750TZ V&H/4-1, Progressive Shocks, Rebuilt MC/braided line, Tarozzi Stabilizer[Seq#2312]
                      GS750TZ Parts Bike [Seq#6036]
                      GSX-R750Y (Sold)

                      my opinion shouldn't be taken as gospel or in any way that would lead you to believe otherwise (30Sep2021)
                      Originally posted by GSXR7ED
                      Forums are pretty much unrecognizable conversations; simply because it's a smorgasbord of feedback...from people we don't know. It's not too difficult to ignore the things that need to be bypassed.

                      Comment

                        #71
                        Thing is, I KNOW to not wear gloves when working close around spinny tools like a drill press, especially with a wire wheel. Yeah, time for a beverage.
                        Rich
                        1982 GS 750TZ
                        2015 Triumph Tiger 1200
                        BikeCliff's / Charging System Sorted / Posting Pics
                        Destroy-Rebuild 750T/ Destroy-Rebuild part deux

                        Comment

                          #72
                          That poor glove! Can it be saved?

                          And that's your passenger foot peg support, right? Was it damaged?
                          1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

                          2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

                          Comment

                            #73
                            Only thing damaged was a little bit of skin on my hand. The glove and piece I was cleaning up are fine. Yes passenger peg support. The swingarm rod goes through it too.
                            Rich
                            1982 GS 750TZ
                            2015 Triumph Tiger 1200
                            BikeCliff's / Charging System Sorted / Posting Pics
                            Destroy-Rebuild 750T/ Destroy-Rebuild part deux

                            Comment

                              #74
                              Originally posted by Rich82GS750TZ View Post
                              I think I’ll quit for tonight.
                              Pro tip: instead of that wire wheel, clean your aluminum bits with an SOS pad. Just a dab of water, make a gooey blue mess and rinse. Ready for some Mothers polish
                              on a soft cone on the drill to finish
                              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

                                #75
                                Great tip. Should have thought of that.
                                Rich
                                1982 GS 750TZ
                                2015 Triumph Tiger 1200
                                BikeCliff's / Charging System Sorted / Posting Pics
                                Destroy-Rebuild 750T/ Destroy-Rebuild part deux

                                Comment

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