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Thread: Project Atc 500r forward kick

  1. #46
    Billy Golightly's Avatar
    Billy Golightly is offline Always finding new and exciting ways to not give a hoot in hell Catch me if you can
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    Love it...I've got to build one of those for my 500!

  2. #47
    fabiodriven's Avatar
    fabiodriven is offline Aspiring romance novel cover model, and the Official 3WW slayer of thieves and swindlers. Catch me if you can
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    Lookin good Jethro.
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  3. #48
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    Well, didnt work out so well, the jackshaft ended up bending right where the splined end was welded on under the load of starting it.
    I think this will work great only if a decomp is used, its just too much piston to be throwing around with no comp release for my forward kick contraption.

  4. #49
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    Jeff, is that just plain old cold rolled steel welded to those hardened splines?? I'm surprised it didn't snap.......

    We gotta find you a splined shaft made from tool steel. May need a center bearing being that it will be a shorter shaft (not sure if you even have the room to do that) but thats just me thinking aloud......

    You may even find a (correctly) splined longer countershaft or main shaft out of something.

    I bet those splines are the same as my 87 200X kickers but they'r too short to do anything with.

    Any idea how many splines there are and the OD??
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  5. #50
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    hey, you need to get it heat treated.
    one cylinder is not enough!!

  6. #51
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    x2

    Heat it red hot and throw it in the dirtiest oil you can find (used diesel engine oil = better). The carbon and other impurities like nitrogen, phosphor in the oil is what you're after to case harden it. You could also throw it in urine or stick it through a body like they did with swords...

  7. #52
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    Regardless, if he used cold rolled everyday steel, then it will never mate properly. You CANNOT heat treat 2 different steels the same way; I think he needs air hardening or oil hardening shaft material or a shaft from something that fits which is why I'd like to have the spline count and O.D.

    It seems his bent right at the weld or somewhere between the 2 bearings.
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  8. #53
    bcredneck is offline I can fit a square peg in a round hole. Just give me a hammer and duct tape! Arm chair racerJust too addicted
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    Quote Originally Posted by BGP View Post
    x2

    Heat it red hot and throw it in the dirtiest oil you can find (used diesel engine oil = better). The carbon and other impurities like nitrogen, phosphor in the oil is what you're after to case harden it. You could also throw it in urine or stick it through a body like they did with swords...
    this totaly works when i make gun parts i do this because i live in canada and hunt its a pain to find parts for any guns most stores dont sell small parts so we make them from normal steel keep them red hot for at least 5 min and dipp in used motor oil and repeat 3 times the oil you use cant have water in it or it wont work properly the water makes a steam barrier and the steel will be brittle the blacker the oil the more carbon the better it works

  9. #54
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    The stock is high carbon, not cold rolled. I think its because its welded right at the most vulnerable place, being so close to the bearing, and on the wrong side of the bearing.
    A one piece shaft would prob be much better, but im thinking its gonna fail somewhere else after.
    Theres just too much strain there, it needs a decomp, otherwise i will just be battling problem after problem.
    If i put a decomp on it, im sure if i straighten out the shaft i have, it will work fine.

  10. #55
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    So did you ever get that jack shaft to work ?
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  11. #56
    B S is offline New to the board Arm chair racerNew to the board
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    i see it working if your able to use a pre made shaft then make a extension on the end of it with a set screw instead of wwelding it

    make sense?

    i could make a diagram ?

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