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. http://i64.photobucket.com/albums/h1...n/IMG_0764.jpg |
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. |
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 |
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.
|
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.
|
Use Anti-sieze when you assemble !!! Smoother torqueing, and it will make disassembly possible later.
|
Originally Posted by I_bRAD
(Post 8134236)
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.
|
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.
|
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.
|
Originally Posted by JustCruisin
(Post 8134326)
Use Anti-sieze when you assemble !!! Smoother torqueing, and it will make disassembly possible later.
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. |
Originally Posted by operator
(Post 8135125)
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.
|
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.
|
Originally Posted by sch
(Post 8134135)
Slightly surprised your welds held up
Originally Posted by well biked
(Post 8134199)
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
Originally Posted by HillRider
(Post 8134216)
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.
Originally Posted by I_bRAD
(Post 8134236)
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.
Originally Posted by JustCruisin
(Post 8134326)
Use Anti-sieze when you assemble !!! Smoother torqueing, and it will make disassembly possible later.
Originally Posted by jccaclimber
(Post 8134853)
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.
Originally Posted by Tapeworm21
(Post 8135820)
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.
|
Originally Posted by HandsomeRyan
(Post 8133654)
Please excuse my booger welds, they held to twist the piece out and that's all that matters...
Your booger welds rock!!! :thumb: . |
Well its not really a bead... more like a booger!
|
All times are GMT -6. The time now is 02:13 PM. |
Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.