Advertise on Bikeforums.net



User Tag List

Results 1 to 15 of 15
  1. #1
    Pants are for suckaz HandsomeRyan's Avatar
    Join Date
    Mar 2007
    Location
    Mt. Airy, MD
    My Bikes
    Hardtail MTB, Fixed gear, and Commuter bike
    Posts
    2,579
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    How I removed a stuck bottom bracket...

    The drive side piece of this BB was so stuck in the frame that it broke my pin spanner when I tried to remove it. The BB is garbage once it's out of the frame anyway so to remove it I welded a piece of scrap steel to the cup and used the biggest pliers I own to twist it free. You can see how much torque it took based on the twist in the welded piece. Once I got it started it screwed right out; I'll check the threads and grease liberally before installing the new BB.

    Please excuse my booger welds, they held to twist the piece out and that's all that matters.


  2. #2
    sch
    sch is offline
    Senior Member
    Join Date
    May 2003
    Location
    Birmingham. AL
    Posts
    2,607
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Slightly surprised your welds held up, but that would have been easy to fix.
    Lacking a welder, I would have drilled out the holes for the pins a bit bigger
    and tried a BFH and punch or maybe a bit of metal with corresponding holes
    and tried self tapping screws into the holes through the metal and wrenched
    on that.

  3. #3
    biked well well biked's Avatar
    Join Date
    Jul 2005
    Posts
    6,876
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Glad it worked out. Here's what I would recommend next time. Scroll down to the section "fixed cup tools." Sheldon's homeade bb cup removal tool works on even the most stubborn cups, along with soaking with penetrating oil and maybe a little impact and a lot of leverage.

    http://www.sheldonbrown.com/tooltips/bbcups.html

  4. #4
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,989
    Mentioned
    10 Post(s)
    Tagged
    0 Thread(s)
    Was this the fixed (drive side) cup or the adjustable (non-drive side) cup? It certainly looke like an adjustable (nds) cup, given the pin holes, lack of wrench flats and lack of an outer flange to limit it's thread depth.

  5. #5
    Call me The Breeze I_bRAD's Avatar
    Join Date
    Aug 2006
    Location
    Corbyville Ontario
    My Bikes
    2004 Litespeed Siena, 1996 Litespeed Obed, 1992 Miele (unknown model), 1982 Meile Uno LS.
    Posts
    3,699
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I think the apparent lack of flange is just a product of the photo. I've seen fixed cups designed for pin spanner installation and removal.

  6. #6
    reTIRED JustCruisin's Avatar
    Join Date
    Nov 2008
    Location
    Illinois
    My Bikes
    raleigh,trike x,puch mixte
    Posts
    106
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Use Anti-sieze when you assemble !!! Smoother torqueing, and it will make disassembly possible later.
    It's Not the destination, It's the Ride.

  7. #7
    Real Men Ride Ordinaries fuzz2050's Avatar
    Join Date
    Sep 2008
    Posts
    3,648
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by I_bRAD View Post
    I think the apparent lack of flange is just a product of the photo. I've seen fixed cups designed for pin spanner installation and removal.
    Some of the nicer cup and cone bottom brackets used two adjustable cups so you could fine tune your chainline. Well I take that back, since one of them was left threaded, they had adjustable fixed cups, how does that sound?

  8. #8
    Senior Member
    Join Date
    May 2005
    Location
    Terre Haute, Lafayette, or Indianapolis, IN, depending on the day
    My Bikes
    n, I would like n+1
    Posts
    1,917
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Assuming that it would clear your chain stay, or could be bent to do so, you could have welded it in parallel to the chain stay and then used the piece of steel as a lever. I'm also surprised those welds held. Either way, congrats on getting it out, and remember to at least grease the new one.

  9. #9
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,295
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Torch applied to the bb area will get 99.999999999999999999% of the bb's out there. Of course the caveat is you don't give a flying **** about the paint. Best case would be minor discoulouration of the bb area.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  10. #10
    Senior Member Sci-Fi's Avatar
    Join Date
    Sep 2006
    Posts
    1,250
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by JustCruisin View Post
    Use Anti-sieze when you assemble !!! Smoother torqueing, and it will make disassembly possible later.
    +1

    Anti-seize, or even plumber's teflon tape, is your friend, esp when you know the BB will have to be replaced sooner or later.

  11. #11
    Senior Member DieselDan's Avatar
    Join Date
    Mar 2003
    Location
    Beaufort, South Carolina, USA and surrounding islands.
    My Bikes
    Cannondale R500, Motobecane Messenger
    Posts
    8,522
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by operator View Post
    Torch applied to the bb area will get 99.999999999999999999% of the bb's out there. Of course the caveat is you don't give a flying **** about the paint. Best case would be minor discoulouration of the bb area.
    Just don't set the rubber mat on fire like I did.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

  12. #12
    Senior Member Tapeworm21's Avatar
    Join Date
    Jan 2007
    Location
    Berkeley
    My Bikes
    2010 Tarmac SL, 2007 Specialized Langster, 2013 Fairdale Weekender, 2013 Fairdale Coaster, 1986 Bridgestone 600, 1972 Schwinn Heavy Duty, 2014 Surley Long Haul Trucker
    Posts
    2,258
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    One of my proudest moments. Same kind of bottom bracket that was absolutely not coming out. So I took a hacksaw and cut the cup in half. Then made another cut to make it look like a piece of pie (3 total cuts). Tapped the "piece of pie" out and then tapped out the rest. I then considered myself a genius for a couple days.
    2009 Specialized Tarmac Pro SL SRAM
    http://uplandsg.com/images/prodlogo_capoformaS.gif

  13. #13
    Pants are for suckaz HandsomeRyan's Avatar
    Join Date
    Mar 2007
    Location
    Mt. Airy, MD
    My Bikes
    Hardtail MTB, Fixed gear, and Commuter bike
    Posts
    2,579
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sch View Post
    Slightly surprised your welds held up
    They don't look pretty but they held tight!.

    Quote Originally Posted by well biked View Post
    Glad it worked out. Here's what I would recommend next time. Scroll down to the section "fixed cup tools." Sheldon's homeade bb cup removal tool works on even the most stubborn cups, along with soaking with penetrating oil and maybe a little impact and a lot of leverage.

    http://www.sheldonbrown.com/tooltips/bbcups.html
    I should have known that Sheldon would have a solution...

    Quote Originally Posted by HillRider View Post
    Was this the fixed (drive side) cup or the adjustable (non-drive side) cup? It certainly looke like an adjustable (nds) cup, given the pin holes, lack of wrench flats and lack of an outer flange to limit it's thread depth.
    This was the drive side cup. The only tool [besides a welder apparently] to install or remove either side of this BB was a pin spanner. The bike is a late 60's bridgestone if that makes a difference.


    Quote Originally Posted by I_bRAD View Post
    I think the apparent lack of flange is just a product of the photo. I've seen fixed cups designed for pin spanner installation and removal.
    Winner. pin spanner only, no flats for a wrench or other tool.

    Quote Originally Posted by JustCruisin View Post
    Use Anti-sieze when you assemble !!! Smoother torqueing, and it will make disassembly possible later.
    preach it brother!

    Quote Originally Posted by jccaclimber View Post
    Assuming that it would clear your chain stay, or could be bent to do so, you could have welded it in parallel to the chain stay and then used the piece of steel as a lever. I'm also surprised those welds held. Either way, congrats on getting it out, and remember to at least grease the new one.
    By grinding the piece of steel to fit into the spindle hole I was able to weld in the center and decrease the likelihood of accidentally welding the cup to the BB shell. The "tab" I welded on didn't need to be that long, I was just too lazy to trim it down.

    Quote Originally Posted by Tapeworm21 View Post
    One of my proudest moments. Same kind of bottom bracket that was absolutely not coming out. So I took a hacksaw and cut the cup in half. Then made another cut to make it look like a piece of pie (3 total cuts). Tapped the "piece of pie" out and then tapped out the rest. I then considered myself a genius for a couple days.
    Nice.

  14. #14
    Senior Member
    Join Date
    Dec 2008
    Location
    Under the Downunder
    My Bikes
    MTBs, BMX, Pocket MTB
    Posts
    1,014
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by HandsomeRyan View Post
    Please excuse my booger welds, they held to twist the piece out and that's all that matters...
    I've never heard that expression applied to a weld bead... I love it!

    Your booger welds rock!!!

    .

  15. #15
    Senior Member SJX426's Avatar
    Join Date
    May 2008
    Location
    Alexandria, Va
    My Bikes
    1972 Motobecane Le Champion (totaled), 1973 Bottecchia Giro d'Italia, 1983 Colnago Superissimo, 1984 Trek 610, 1994 Burley Duet, 1988(?) Pinarello Tre Cime, 88 Masi Gran Corsa (Frame), 1991 Pinarello Montello, 1997 Specialized RockHopper
    Posts
    2,930
    Mentioned
    16 Post(s)
    Tagged
    1 Thread(s)
    Well its not really a bead... more like a booger!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •