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H
ive used two big ass wrenches, some WD40 and me jacked friend

it dont move, help bros
+Showing all 15 replies.
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Do you have the correct bb socket or are you fucking around?
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You need to extract that bitch safely? Id uhh give up on that but before I would fix the little protrusion on to a vice try to hammer the other part off, other wise break that bitch and replace it
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>>2970538
take a centerpunch and put a ring of good divots around the outside. it will ever so slightly expand the tube diameter from the metal displacement and help break the thread free
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>>2970538
You know the right side crank loosens clockwise right
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It won't come out? Reminds me of someone.
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>>2970538
it's probably reversed thread
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>>2970538
bottom brackets suck
good luckh,
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>>2970538
Caustic soda to dissolve the aluminium
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If you have the frame stripped down, the common tactic is to stick the tool (BBT-22 etc) in a vise, then put the frame/bb on that. This way you're using the frame for leverage.

With Shimano units the spindle typically has a thru hole, so you can stick an old qr etc through the tool, through the spindle. Don't have it all the way tight, it's there so you don't slip off the tool when you're reefing on it.
Don't put both hands on one spot, spread out and have your dominant hand pulling, your off hand pushing/stabilizing.

Also look at your tool. Only the very tips of the splines engage, and they're easily deformed. You can run it against a belt sander, grind off maybe 1mm?
You can do that a couple of times before you have to get a new one. This one's been ground before, but you can see how the corners get fucked up.
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>>2970538
Ever heard of heat guns?
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>>2970538
Former cycling Pro here. Be sure you are rotating it in the correct direction they come off counterclockwise on the drive side, clockwise on the non Drive side.

You can also try heating up the metal of the frame around it with a heat gun not a propane torch.

If it still doesn't come, then one thing you can do is you put the bottom bracket tool into a vise standing upright and then use the longer lever moment on the frame to unscrew the cup
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>>2970559
this is 100% the problem and it's fucking hilarious
I always attempt tightening something if I can't loosen it
>can help break a seize
>maybe i'm retarded and it's supposed to go clockwise
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>>2970538
Need a good penetrating fluid applied and given time to soak in.
I used acetone + automatic transmission fluid, but supposedly Liquid Wrench is about as good.

Then you will need a long lever. I had to use a 5' metal pipe

OR if you have access to an impact wrench, that will probably do the trick.

Of course, make sure you are turning in the right direction!
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>>2970559
>Correct, but...
Makes no sense to me, btw, just like pedals; it should tighten the same way it rotates (so it can't come loose from friction/seizing, regardless of how unlikely).
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>>2972962
>it should tighten the same way it rotate
its exactly backwards

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