Any tips for removing a stuck bottom bracket cup on the non-drive side?
Tried using these tools, but could not get the leverage and they just pop out.
Perhaps one of these would work? Anyone have one?
What about something like this?
J_Dada
Posted: Wed Jul 13, 2016 8:27 am
Down 2 FUNKJoined: 14 Oct 2012Posts: 1274
Is this anything like removing a stuck seatpost? If so, I know just the guy you should talk to.
whitenhiemer
Posted: Wed Jul 13, 2016 8:50 am
Joined: 26 Sep 2013Posts: 591Location: somewhere up north
Is that a Alfina? if so, that cup is never coming out.
jeff
Posted: Wed Jul 13, 2016 10:33 am
SOC pussyJoined: 05 May 2006Posts: 4501
Braking news (paywall): Andre offered solid advice/help. Keep talking about that Bianchi Alfina that I sold at my yard sale for a $1 profit.
caustic meatloaf
Posted: Wed Jul 13, 2016 10:43 am
Joined: 06 Dec 2010Posts: 1235537Location: a hammy melange...
LOL. Although, you can get away with a piece of allthread, and a couple nuts Put the allthread in a vise, screw on a nut, put the frame over it so that the allthread rod goes through the BB crank hole, put on the other nut and crank it down HARD onto the BB Cup, and then twist the frame so that it has to unscrew the BB cup.
Also, I'd recommend completely disassembling and reassmbling the bike before and after doing this.
_________________ HIS NAME IS EDMUND
jeff
Posted: Wed Jul 13, 2016 10:45 am
SOC pussyJoined: 05 May 2006Posts: 4501
caustic meatloaf wrote:
LOL. Although, you can get away with a piece of allthread, and a couple nuts Put the allthread in a vise, screw on a nut, put the frame over it so that the allthread rod goes through the BB crank hole, put on the other nut and crank it down HARD onto the BB Cup, and then twist the frame so that it has to unscrew the BB cup.
Actually not a bad idea for a back-up plan, but I'm going to seek Andre's guidance first. Thanks, Joe.
J_Dada
Posted: Wed Jul 13, 2016 11:26 am
Down 2 FUNKJoined: 14 Oct 2012Posts: 1274
jeff wrote:
Keep talking about that Bianchi Alfina that I sold at my yard sale for a $1 profit.
Do I owe you a sandwich?
jeff wrote:
Thanks, Joe.
See! Told you I knew who to talk to.
jeff
Posted: Wed Jul 13, 2016 11:48 am
SOC pussyJoined: 05 May 2006Posts: 4501
J_Dada wrote:
jeff wrote:
Keep talking about that Bianchi Alfina that I sold at my yard sale for a $1 profit.
Do I owe you a sandwich?
Nope, but if you feel like donating one to the cause I'll PM you my work address.
J_Dada
Posted: Wed Jul 13, 2016 12:46 pm
Down 2 FUNKJoined: 14 Oct 2012Posts: 1274
Got your PM, but all it says is "Message behind paywall."
Serious answer, theres a specialist bike tool for this. It effectively makes an increasing pinch fit on the cup from two sides and allows attachement of a breaker bar. I know hello bicylcle has one. Took 5 minutes and a couple bucks for them to pull an old BB that had rusted in to the shell of a frame I picked up.
jimmythefly
Posted: Mon Jul 18, 2016 12:17 pm
Joined: 10 Jan 2007Posts: 1491
Usually the "pinch it with a huge bolt and nut" only works on the drive side cup, due the fact that it is reverse threaded.
Typically when you try this on the NDS, when you go to crank on the nut or bolt head, all you accomplish is unscrewing it.
HOWEVER loosening the NDS cup can be accomplished using a nut stack on the inside of the BB shell tall enough that it protrudes out the drive side. Then you can use a tool on the driveside, rotate it in the direction that simultaneously tightens the bolt/nuts pinching the cup and also is rotating the cup the correct direction to loosen it.
All of the above assumes that at least on of the cups and the spindle are already removed, and that you have only one stuck cup to deal with.
jimmythefly
Posted: Mon Jul 18, 2016 12:19 pm
Joined: 10 Jan 2007Posts: 1491
PS did you end up getting it out? If it is stuck as shown with the spindel still in place I have a couple of other ideas/tools that might work.
jeff
Posted: Mon Jul 18, 2016 12:27 pm
SOC pussyJoined: 05 May 2006Posts: 4501
jimmythefly wrote:
PS did you end up getting it out? If it is stuck as shown with the spindel still in place I have a couple of other ideas/tools that might work.
Step one, buy Andre a sixer of Fremont Summer Ale.
Step two, fire up the welder.
Step three, weld a piece of re-bar to the stuck cup.
Step four, success!
Prior to that we tried, unsuccessfully, to: drive it out with a hammer and chisel, use a pipe wrench to grip it and lastly grind a flat surface from which to get a grip on it.
An upgrade to our method would be to weld a nut on to the cup and then just use a crescent wrench.
garywashere
Posted: Tue Jul 19, 2016 7:37 am
Joined: 04 Oct 2013Posts: 226Location: Shelbyville
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Down 2 FUNK
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