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  1. #1
    tweeder's Avatar
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    Broken flywheel bolt

    I know, I know I was having another blonde moment when I was tightening the flywheel on. Anywho I called ziglers shop, not sure who I talked to but he said that there's no way that its seperate as he was looking a a 750 crank. He could see the taper where the flywheel goes and then its machined flat and into a thread on his. I said look closely and you should be able to see it recessed, nope. He suggested that maybe it was an after market crank? All I know is heres the pics. There about 1/2" of thread where the flywheel washer and nut go, then its tapered down to about 3/8" with about 3/8" of shaft before the threads start. I still have to drill and extract the part thats in the shaft.
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  2. #2
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Duuuuude.........

    That's some weird chit!!!!!


    That is not stock for sure.

    No wonder Zigler doesn't have one.....


    http://partsland.com/index.cgi?N=128...NKSHAFT-PISTON

  3. #3
    tweeder's Avatar
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    Well I contacted the guy that I got the ski off of. He took the crank into a dealer when he was on holidays and they gave him that one.
    It was quite a few years ago so he's not sure exactly sure where or any other info.

  4. #4

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    i would weld it back on

  5. #5
    tweeder's Avatar
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    Quote Originally Posted by Bone1050 View Post
    i would weld it back on

    But would the heat warp the crank?

  6. #6
    blegan's Avatar
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    Not if its done properly, Get a new crank or take that one to a machine shop. Those seem to be your options, regardless if its stock or not!
    Brian

  7. #7
    thester71's Avatar
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    Send it to a reputable crank rebuilder like sharps marine or midwest crankshaft, they can replace just the crank snout if needed, probably a cheap fix. Or you can get a rebuilt crank from sbt for $245 plus shipping, plus $$$ extra for the damaged crank snout. I would not weld it, that is a hack move, the crank can be fixed the right way cheap enough.

  8. #8
    tweeder's Avatar
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    I'm gonna see if I can remove the bolt and replace it with another. I'm just wondering if a bolt bottoming out on the end of the snout with a washer will keep the flywheel flush or will the flywheel move back and forth and stop at the bolt.

  9. #9

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    This happened to me and I was able to remove the bolt by using a very small flat head screw driver/pick, to back out the bolt. I used wd-40 and blaster to loosen it up. Hopefully nobody used threadlocker on it.

  10. #10
    thester71's Avatar
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    Quote Originally Posted by tweeder View Post
    I'm gonna see if I can remove the bolt and replace it with another. I'm just wondering if a bolt bottoming out on the end of the snout with a washer will keep the flywheel flush or will the flywheel move back and forth and stop at the bolt.
    Shouldn't it be left handed threads then? I wouldnt trust it. Did the flywheel come off the crank taper when the bolt broke, or did you need a puller to get it off?

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