Oversized Crank extractor

anjs
anjs Posts: 486
edited February 2010 in MTB workshop & tech
Hi all hope you can help me?
I am trying to remove an old Raceface evolve Xc chainset. I have removed the crank bolt but the diameter of my ISIS extractor is too small to screw into the chainset. Is it possible to bet extractors of a much larger diameter that will fit or should I consider a Race face x type self extractor?

Comments

  • nicklouse
    nicklouse Posts: 50,673
    they are the same sized thread.

    do you have pics?

    or what year is the crank/bike?
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • anjs
    anjs Posts: 486
    Well thats what I thought, but the diameter is a good 25% larger than normal.
    I would guess its a mid 2000's version.
    I have the 2008 model and that comes of fine using a normal ISIS extractor.
  • nicklouse
    nicklouse Posts: 50,673
    some one must have playing as all crank extraction threads are the same.

    even the cranks with self extracting bolts use the same thread.

    pics would be good.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • anjs
    anjs Posts: 486
    edited January 2010
    Ok its one of these


    http://www.evanscycles.com/product_imag ... x-type.jpg
  • davehm
    davehm Posts: 22
    Just to check

    It isn't the X-type one is it, with external BB bearings?
  • anjs
    anjs Posts: 486
    yes external bearings as I am trying to replace the external bb
  • nicklouse
    nicklouse Posts: 50,673
    racefaceXtype_14.jpg

    then it is self extracting put it all back together.

    but the extractor thread is sill ISIS (and all other crank arm thread) standard.

    from the manual
    REMOVAL (IF NECESSARY):
    a) Remove M15 crank bolt from RH crank arm / spindle with 8mm hex key. (Turn bolt counter-clockwise to remove)
    b) Use standard ISIS compatible crank puller with M22x1 thread (Park Tool CWP-6) to remove RH crank from spindle.
    c) Slide spindle / LH crank assembly through BB cups and remove. Tap lightly with mallet if necessary to force spindle out through plastic races.
    d) Unthread BB cups from frame with external BB Cup Spline Tool (Park Tool BBT-9) (R = clockwise to remove / L = counter-clockwise to remove).

    http://www.raceface.com/comp/inst/Deus. ... XI.web.pdf
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • anjs
    anjs Posts: 486
    Like I said the diameter of the threaded hole in the chainset is much larger than a standard extractor width
  • nicklouse
    nicklouse Posts: 50,673
    then some one has modified it.

    there are not any larger extractors.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • anjs
    anjs Posts: 486
    LBS is currently attacking it with a gear puller and big hammer
  • The Rookie
    The Rookie Posts: 27,812
    Guess you aren't re-using the cranks then?

    Simon
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • lemurs
    lemurs Posts: 1
    Early T.A. use 23mm, early stronglight use 23.5, hard to get an extractor now but they can be made. Most cranks are 22mm but not all. lemurs
  • mmacavity
    mmacavity Posts: 781
    Art.-Nr.: 720060 - CRANK EXTRACTOR OVERSIZE M24


    http://www.cyclus-tools.eu/tretkurbeln.html?&L=3



    Shimano TL-FC35 crank removal tool ?
  • nicklouse
    nicklouse Posts: 50,673
    fo that to work the crank must have been repaired and had the threads re cut.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown

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