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  • CONGRATS!!! You got it together and its working!!!

    Take a break, get some sleep. Go back to tuning when your rested and thinking straight.
    Life is what happens while your planning everything else!

    When your work speaks for itself, don't interrupt.

    81 XS1100 Special - Humpty Dumpty
    80 XS1100 Special - Project Resurrection


    Previously owned
    93 GSX600F
    80 XS1100 Special - Ruby
    81 XS1100 Special
    81 CB750 C
    80 CB750 C
    78 XS750

    Comment


    • Good morning fellas. Bad news I'm afraid. Out working on the carbs this morning when I heard "pop". Looked down and see the timing cover cracked in-half with a hold in it. The timing plate somehow came loose, and probably bent the crank. The reason I say that is the timing plate wobbles when u crank it. Two dead clyinders. I
      1979 XS1100F
      2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.

      Comment


      • WHAT??? The timing plate coming loose would have nothing to do with the crank bending. I am betting you lost two cylinders because you messed up the gap or totally broke one of the pick-up coils.

        My best guess is that bolt in the center of the timing setup was not tight and worked its way out. Letting the timing plate wobble which cracked your timing cover. Realistically, you could run the bike without the timing cover on it.

        I bet the bolt is bent that holds the timing plate in. You have to work pretty dang hard ad it to bend the crank on one of these engines.
        Life is what happens while your planning everything else!

        When your work speaks for itself, don't interrupt.

        81 XS1100 Special - Humpty Dumpty
        80 XS1100 Special - Project Resurrection


        Previously owned
        93 GSX600F
        80 XS1100 Special - Ruby
        81 XS1100 Special
        81 CB750 C
        80 CB750 C
        78 XS750

        Comment


        • I pulled the bolt, it looks straight. My buddy says no-doubt the crank is bent

          http://db.tt/XLJaGZ6X
          Last edited by IanDMacDonald; 06-21-2013, 06:53 AM.
          1979 XS1100F
          2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.

          Comment


          • You most likely just didn't have the centrifugal advance unit lined up correctly. It only fits on ther one way CORRECTLY in the slots in the end on the crank.

            It would take a LOT to bend one of these crankshafts.
            Last edited by BA80; 06-21-2013, 07:03 AM.
            Greg

            Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

            ― Albert Einstein

            80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

            The list changes.

            Comment


            • How in the hades do you bend the crank on one of these bikes?? If the crank is bent, then remove all the timing setup, hit the starter and watch the end of the crank where it attaches. See if you see it out of round in its movement.
              Life is what happens while your planning everything else!

              When your work speaks for itself, don't interrupt.

              81 XS1100 Special - Humpty Dumpty
              80 XS1100 Special - Project Resurrection


              Previously owned
              93 GSX600F
              80 XS1100 Special - Ruby
              81 XS1100 Special
              81 CB750 C
              80 CB750 C
              78 XS750

              Comment


              • Originally posted by IanDMacDonald View Post
                Good morning fellas. B ad news I'm afraid. Out working on the carbs this morning when I heard "pop". Looked down and see the timing cover cracked in-half with a hold in it. The timing plate somehow came loose, and probably bent the crank. The reason I say that is the timing plate wobbles when u crank it. Two dead clyinders. I
                What cylinders are dead? I agree that its likely loss of ignition and not bent crank... on that note, did you ever find that cam cap nut? If it started and ran I highly doubt the nut could be responsible for this but hey you could blame it anyways.

                Did you have the advance unit off recently?
                Last edited by WMarshy; 06-21-2013, 08:45 AM.
                '79 XS11 F
                Stock except K&N

                '79 XS11 SF
                Stock, no title.

                '84 Chevy K-10 "Big Blue"
                GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

                "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

                Comment


                • It.s my Scottish luck. I removed the timing plate and pulse cranked it. The reluctor wobbles.
                  1979 XS1100F
                  2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.

                  Comment


                  • I think 3 & 4 were dead.
                    1979 XS1100F
                    2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.

                    Comment


                    • Originally posted by IanDMacDonald View Post
                      It.s my Scottish luck. I removed the timing plate and pulse cranked it. The reluctor wobbles.
                      What I meant was, at any point prior to assembly of the head and subsequent issue did you take off the timing plate assembly? If you did it may support Steve's point that maybe it wasn't put back on correctly.

                      With a bent crank I would expect bad noises while it turns over. With the ignition assembly removed from the end of the crank, if it turns over without a tud or bad noise then I dont think you have a crank problem. As previously stated, the crank is hefty. Check the straightness of said ignition plate bolt by rolling it on a flat surface. Just eying it may not be enough.
                      Last edited by WMarshy; 06-21-2013, 09:10 AM.
                      '79 XS11 F
                      Stock except K&N

                      '79 XS11 SF
                      Stock, no title.

                      '84 Chevy K-10 "Big Blue"
                      GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

                      "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

                      Comment


                      • Nope, I never touched it
                        1979 XS1100F
                        2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.

                        Comment


                        • The sleeve that the bolt runs though (and the timing plate rests on) rests on a pin that holds it in lone. That pin needs to be lined up correctly with the sleeve. If the sleeve is not lined up right it will sit at a slight angle and it will wobble.

                          You are not going to bend the crank like that.
                          Nathan
                          KD9ARL

                          μολὼν λαβέ

                          1978 XS1100E
                          K&N Filter
                          #45 pilot Jet, #137.5 Main Jet
                          OEM Exhaust
                          ATK Fork Brace
                          LED Dash lights
                          Ammeter, Oil Pressure, Oil Temp, and Volt Meters

                          Green Monster Coils
                          SS Brake Lines
                          Vision 550 Auto Tensioner

                          In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                          Theodore Roosevelt

                          Comment


                          • Better cut your loss and give me the bike.

                            Maybe the PO did work to the pickup and the bolt just loosened up and caused it to fall our and break the cover..? Probably should use the Blue Lock-tight on that bolt for assembly...

                            Things dont usually just fall...*cough cough* ...but usually it happens after it was messed with. Either improper torque of lack of thread locker...
                            Last edited by WMarshy; 06-21-2013, 09:24 AM.
                            '79 XS11 F
                            Stock except K&N

                            '79 XS11 SF
                            Stock, no title.

                            '84 Chevy K-10 "Big Blue"
                            GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

                            "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

                            Comment


                            • Ian, if that engine ran last night, and no one threw a bolt in the crankcase just for fun, I am convinced your crank is not bent. Fully remove the entire timing assembly, not just the plate, then watch the crank, and only the crank.
                              Life is what happens while your planning everything else!

                              When your work speaks for itself, don't interrupt.

                              81 XS1100 Special - Humpty Dumpty
                              80 XS1100 Special - Project Resurrection


                              Previously owned
                              93 GSX600F
                              80 XS1100 Special - Ruby
                              81 XS1100 Special
                              81 CB750 C
                              80 CB750 C
                              78 XS750

                              Comment


                              • http://db.tt/O19fC9UL
                                1979 XS1100F
                                2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.

                                Comment

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