Removing the Clutch Boss from the Main Axle

Discussion in 'Motorbike Technical Discussion' started by Scott Ritter, May 16, 2006.

  1. Scott Ritter

    Scott Ritter Guest

    Hi,

    I have the unfortunate job of replacing second gear in my 02 R1 (yes, you
    guessed it) and have the motor out and most of it apart.

    I have now reached the point where I need specialised tools. Or do I really?

    Are there any other ways to undo the boss nut from the main axle than to use
    the specialised universal clutch holder tool? eg. with screw drivers, etc. ?

    I am scared to use a screwdriver as I could easily break bits off and that
    would feel as bad as dropping a nut into the the engine block by accident ;)

    If the tool is the only way, where can I get the cheapest tool from? Money
    is a problem here - or I'd have the bike in the shop and be paying the
    $4000+AU they wanted.

    I could prolly build myself a tool but then I'd have to move all the bits
    (bike parts in the hundreds) to a safe place from all the metal filings and
    sparks.

    Cheers

    Scott
    PS. The next job is the Generator Rotor Bolt from the Generator.
     
    Scott Ritter, May 16, 2006
    #1
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  2. Scott Ritter

    FB Guest

    One guy reported that he broke off one of the pieces that the pressure
    plate bolts attach to by putting a screwdriver between them.

    Do not use screwdrivers against aluminum parts, you will be unhappy
    with the results.
    My Haynes manual shows how to build a home made tool out of two pieces
    of cold-rolled steel bar stock. The two pieces are about two feet long.
    The last 1.5 to 2.0 inches are bent at a 90 degree angle. A hole is
    drilled through each piece of bar stock about 1/3rd of the way from the
    bent ends, and the two pieces are fastened to gether with a screw and
    nut so you wind up with a tool that looks like tongs. The bent ends go
    into the gear teeth on the hub and you squeeze the long ends of the
    bars to stop the hub from rotating.

    Maybe another method would be to find a really large diameter steel
    hose clamp and use that to stop the hub from rotating.
     
    FB, May 16, 2006
    #2
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  3. Scott Ritter

    Scott Ritter Guest

    Excellent ideas, I think the hose clamp idea may help with undoing the
    Generator Rotor bolt as the generator rotor looks to be solid and strong.
    Just need a hose clamp that is strong enough to tighten with great force.

    Thanx for the reply, very much appreciated.
     
    Scott Ritter, May 16, 2006
    #3
  4. Scott Ritter

    Doug Warner Guest

    I made one from two lengths of flat steel stock, I drilled one ened
    of each for a single bolt, and bent the other ends 90 degrees,
    I then ground down the bent ends to reduce their width just enough
    that they fit tightly between the notches in the baxket, and the slots
    in the center hub. The length of the tool is about 2 feet.

    With the end of the tool braced, it's easy to turn the clutch nut. If
    you want a photo of the tool, let me know.
     
    Doug Warner, May 17, 2006
    #4
  5. Scott Ritter

    Scott Ritter Guest

    I get the idea now, thank-you. I will have to give it a shot and if my tool
    doesn't work, I'll be back for that photo of yours :)

    Guess I will have to dirty up one of the wife's sheets as I will need to
    cover the engine and parts while I use the only vice in my workshop ;)

    Cheers

    I made one from two lengths of flat steel stock, I drilled one ened
    of each for a single bolt, and bent the other ends 90 degrees,
    I then ground down the bent ends to reduce their width just enough
    that they fit tightly between the notches in the baxket, and the slots
    in the center hub. The length of the tool is about 2 feet.

    With the end of the tool braced, it's easy to turn the clutch nut. If
    you want a photo of the tool, let me know.
     
    Scott Ritter, May 17, 2006
    #5
  6. Scott Ritter

    Doug Warner Guest

    Shot one anyway:
    http://webpages.charter.net/dwarner2/ClutchHolder.jpg

    Actually, it's only about a foot long, and I had to twist the ends a
    bit in the vise to get them to line up with the slots.
    Also, in this case, I used a hacksaw to reduce the width of the tips.

    (I keep an assortment of steel stock in the garage, just for things
    like this..)
     
    Doug Warner, May 17, 2006
    #6
  7. Scott Ritter

    Scott Ritter Guest

    Made one similar to yours but found I also needed to weld a longer handle on
    it to gain leverage. Worked a treat thanx very much.

    Also got so confident I made a tool to hold the flywheel while I undid the
    rotor bolt and that too worked a treat.

    Now unfortunately I am stuck getting the damn flywheel off because I have no
    puller and I can't find a bolt with the right thread. :(

    Cheers


    Shot one anyway:
    http://webpages.charter.net/dwarner2/ClutchHolder.jpg

    Actually, it's only about a foot long, and I had to twist the ends a
    bit in the vise to get them to line up with the slots.
    Also, in this case, I used a hacksaw to reduce the width of the tips.

    (I keep an assortment of steel stock in the garage, just for things
    like this..)
     
    Scott Ritter, May 20, 2006
    #7
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