How To: Fixing bad threads rear Brake lever
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    bosshaug1
    Posts:1093
    Joined:Fri Sep 28, 2007 11:05 am
    How To: Fixing bad threads rear Brake lever

    by bosshaug1 » Wed Apr 22, 2009 8:29 am

    OK, so I fixed my mistake last night with a Permacoil kit. The size of the pivot bolt is M8x1.25 for those who care to know. I practiced on a scrap piece of aluminum before hacking into my frame. It is pretty easy to do, and here is how...

    Tools needed...
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    First, drill out the old threads with appropriate drill bit. In this case it is a 21/64.
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    Then, blow out scrap metal with compressed air.
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    Next, use a tap handle and the provided tap to cut new threads.
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    Put the coil on the insert tool. Note the tang that is used to drive the coil.
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    Drive the coil into the newly cut threads. Make sure you drive it far enough that no threads are exposed on the outside.

    Remember that tang? You will need to remove it.
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    A well placed blow with a screwdriver will pop it off.
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    Finished product -good as new!
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    2006 CRF250X -JD kit, R can/PMB endcap, CCC mods, 05Rcam, flatland rad guards/skidplate, street legal
    2005 CRF50F -stock
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    Codeman00
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    Joined:Wed Nov 21, 2007 9:17 am

    by Codeman00 » Wed Apr 22, 2009 11:01 am

    Nice work!

    I think more of my problem was a boogered screw thread at the end of the screw. I had my machinist here at work turn the first three threads off the end of the screw and fix the lead-in...hopefully that will work. Luckily I didn't take all of the threads out with my kotter pin mistake.
  • topgun
    Posts:511
    Joined:Wed Aug 30, 2006 8:27 pm

    by topgun » Thu Apr 23, 2009 5:48 am

    Nice job and apologies for sounding like a wise a$$ ....
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    bosshaug1
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    Joined:Fri Sep 28, 2007 11:05 am

    by bosshaug1 » Thu Apr 23, 2009 8:12 am

    No worries mate, I didn't take it personally, I just hate all Australians now :lol: :lol: :lol: :lol: :lol:
    2006 CRF250X -JD kit, R can/PMB endcap, CCC mods, 05Rcam, flatland rad guards/skidplate, street legal
    2005 CRF50F -stock
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    IamTheCowboy
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    by IamTheCowboy » Thu Apr 23, 2009 2:17 pm

    Bosshaug, super job on the photos! I admire people who take the extra time while doing a project to help others! Hopefully others will be able to benefit because of your post!!
    Unemployment can make you thirsty!
    04 250x

    Quickshot, JD kit, CCC mods, Uni filter. Flatland racing radiator braces, moose skid plate. Hot Cams stage 1, KW SS valves and springs.
    Scotts Damper

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    450xdirt
    Posts:506
    Joined:Wed Feb 25, 2009 2:20 pm

    by 450xdirt » Thu Apr 23, 2009 4:55 pm

    Yeah thanks for the photos. I almost did the same thing but stopped when it started feeling tight. :lol:
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    dlpmx
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    Joined:Fri Nov 25, 2005 7:32 pm

    by dlpmx » Wed Mar 16, 2011 5:25 pm

    might want to use a little Loc-Tite on that insert.

    Dale
    All mods listed in the Garage
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    crfsonly
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    by crfsonly » Wed Mar 16, 2011 6:03 pm

    dlpmx wrote:might want to use a little Loc-Tite on that insert.

    Dale


    great suggestion dale.
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