Bert starter/flywheel grind issue

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  • Matt49
    Senior Member
    • Jun 2007
    • 3123

    #16
    Originally posted by merc123 View Post
    Space the starter away from the bell housing?
    If you've got too much gap between the flywheel and the idler (which at .120, you definitely do), you need to shim the flywheel, not the starter.

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    • merc123
      Senior Member
      • May 2007
      • 1261

      #17
      Originally posted by JustAddDirt View Post
      is your starter a race starter?
      just wandering if someone forgot to remove one of the springs insde the starter bendix.
      the gear should flip easily in and out, with no resistance.
      Yep. The gear is actually stuck out. I can push it in and it'll pop back out on its own. Takes very little effort to move it in and out.

      Originally posted by Matt49 View Post
      If you've got too much gap between the flywheel and the idler (which at .120, you definitely do), you need to shim the flywheel, not the starter.
      That's why I was asking him why he wanted me to shim the starter and not the flywheel. Thinking he thought it was a block mount starter.
      Web: http://www.t17.co
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      • JustAddDirt
        Senior Member
        • May 2007
        • 1893

        #18
        va-rooom

        It should have a little spring to it in the last 1/2" being shoved in, but basically flop in and out both directions other than the last 1/2 of being shoved in all the way.
        I would say a couple shims on the flywheel should do it .
        I think there should be lifeguards in the genepool.

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        • merc123
          Senior Member
          • May 2007
          • 1261

          #19
          We have a winner! It needed shimming.

          I was only able to find one .040 Bert shim locally and it worked but not completely. Found some .066 washers that measured out all the same and put them behind the flywheel and it will spin for days without pulling away.

          Next question now, would ungraded washers be safe behind the flywheel or go ahead and break down and buy another shim.
          Web: http://www.t17.co
          FaceBook: http://www.facebook.com/T17Dirt
          Twitter: http://www.twitter.com/TeamT17 or @TeamT17

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          • jrkracing54
            Senior Member
            • May 2007
            • 620

            #20
            Originally posted by merc123 View Post
            We have a winner! It needed shimming.

            I was only able to find one .040 Bert shim locally and it worked but not completely. Found some .066 washers that measured out all the same and put them behind the flywheel and it will spin for days without pulling away.

            Next question now, would ungraded washers be safe behind the flywheel or go ahead and break down and buy another shim.
            The shims are very cheap.
            "Out of every one hundred men, ten shouldn't even be there, eighty are just targets, nine are the real fighters, and we are lucky to have them, for they make the battle. Ah, but the one, one is a warrior, and he will bring the others back."
            — Heraclitus

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            • merc123
              Senior Member
              • May 2007
              • 1261

              #21
              The issue came back. I had 2, .040 shims behind it. When I put 3, .040 shims in it fixes the problem but then the flywheel will occasionally hit the idler gear and spark or it won't let it fully disengage and spinds the idler with the motor until you shut motor off. It only does it maybe 1 in 10 starts. The only thing that has changed is I had to get the bellhousing rewelded where it cracked through the weld. The had to cut a lot off and he tig welded it back together. I tried PB blaster and then grease on the idler to see if that may be the issue and it didn't fix it.

              It seems like I might need a .020 or .030 shim instead of a .040. Do they make them?
              Last edited by merc123; 06-06-2013, 09:13 PM.
              Web: http://www.t17.co
              FaceBook: http://www.facebook.com/T17Dirt
              Twitter: http://www.twitter.com/TeamT17 or @TeamT17

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              • speedbuggy
                Senior Member
                • Feb 2008
                • 259

                #22
                Sounds to me like you have a starter that is going bad. Speedway has a .030 shim if you want to go that route -



                I had similar problems at the start of the season. Had to replace the starter. I dealt with DBR (http://www.dbrstarters.com/). Their service was excellent and prices very reasonable.

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                • merc123
                  Senior Member
                  • May 2007
                  • 1261

                  #23
                  I may try a different starter and see where it gets me.
                  Web: http://www.t17.co
                  FaceBook: http://www.facebook.com/T17Dirt
                  Twitter: http://www.twitter.com/TeamT17 or @TeamT17

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                  • speedbuggy
                    Senior Member
                    • Feb 2008
                    • 259

                    #24
                    You might as well replace the idler gear spring while you're at it. If it is weak, it might keep the idler from disengaging the flywheel (this is a reach, but might as well do it for $3-$4 bucks).

                    Comment

                    • Lizardracing
                      Senior Member
                      • Sep 2009
                      • 839

                      #25
                      Check all electrical connections. I don't mean just wiggle them either. I mean take them apart and sand them clean and shiny to reduce the resistance. The starter could very well need more electricity to maintain the engagement. If the battery were weak, it might be able to deliver the electricity needed for a short period of time but lose it too quickly. The problem is much worse on small batteries that are barely big enough anyway. Add some bad connections or corroded wires and you got a problem.

                      Comment

                      • Anna Jackson
                        Junior Member
                        • Jun 2013
                        • 5

                        #26
                        Originally posted by jrkracing54 View Post
                        The shims are very cheap.
                        You are right .. looking fine..

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