Sam Ward Posted March 25, 2006 Report Share Posted March 25, 2006 I have finally got the crank off my jump bike with the use of an angle grinder but now i cant get the bb out. Im using a huge assed torque wrench, and a lifu bb tol.But as i was attempting to undo the plastic non drive cup (anticlockwise), parts of the cup broke off so now im left with just a quarter of the toothed bit to undo it with, which is proving itself to be a right cnut.Have any of you had the same problem and actually managed to get it out.sam Quote Link to comment Share on other sites More sharing options...
Saracen Kid Posted March 25, 2006 Report Share Posted March 25, 2006 my mate had the same problemas he likes being destrictive he got a iron pin and a mallet and wacked it one it came out after 7 hits <-- thats what he is Quote Link to comment Share on other sites More sharing options...
Mark W Posted March 25, 2006 Report Share Posted March 25, 2006 The only advice I can give really is just to make sure you're turning it the right way - opposite thread on the RIGHT side, don't forget, regular on the LEFT. Quote Link to comment Share on other sites More sharing options...
DAB Posted March 25, 2006 Report Share Posted March 25, 2006 If you have got the other side out (the bottom bracket it self) the plastic cup can be removed by getting a flat blade screwdriver or thin chisel and making a cut through the cup from outside to in.. this will split the cup and will come out without any damage but don't try cutting to far in to the cup as you might damage the threads... you might also need to to use the screwdriver/chisel on the lip of the cup hitting it from the top or bottom to free it.. Quote Link to comment Share on other sites More sharing options...
Sam Ward Posted March 25, 2006 Author Report Share Posted March 25, 2006 If you have got the other side out (the bottom bracket it self) the plastic cup can be removed by getting a flat blade screwdriver or thin chisel and making a cut through the cup from outside to in.. this will split the cup and will come out without any damage but don't try cutting to far in to the cup as you might damage the threads... you might also need to to use the screwdriver/chisel on the lip of the cup hitting it from the top or bottom to free it..No unfortunatley im still on the non drive side.But would just taking the plastic out bit by bit with a small screwdriver work.sam Quote Link to comment Share on other sites More sharing options...
Mark W Posted March 25, 2006 Report Share Posted March 25, 2006 If you're going to try and do that, you'll need the other side first to do it best. If you go and try taking the r-side out first, it might be easier 'cos it's metal so you aren't risking chunking it up as much as the plastic one, then you can batter the plastic one with the screwdriver + hammer. Just make sure you're turning it the right way! Can't stress that enough, the amount of posts on here about "My BB won't come out" "Are you turning it the right way?" "Oh, no I'm not" is unbelievable Quote Link to comment Share on other sites More sharing options...
DAB Posted March 25, 2006 Report Share Posted March 25, 2006 No unfortunatley im still on the non drive side.But would just taking the plastic out bit by bit with a small screwdriver work.samTake the other side out first then the plastic side should come out easyer.....when you have the other side out then do as i said a minuet ago, and use a hammer to tap the screwdriver to cut through the cup.. Quote Link to comment Share on other sites More sharing options...
Sam Ward Posted March 25, 2006 Author Report Share Posted March 25, 2006 If you're going to try and do that, you'll need the other side first to do it best. If you go and try taking the r-side out first, it might be easier 'cos it's metal so you aren't risking chunking it up as much as the plastic one, then you can batter the plastic one with the screwdriver + hammer. Just make sure you're turning it the right way! Can't stress that enough, the amount of posts on here about "My BB won't come out" "Are you turning it the right way?" "Oh, no I'm not" is unbelievable Firstly i am turning it the correct way, i even checked before making this post.But you cant take out the r-side cup first because it is attached to the bb itself ( the non drive is the loose one that the bb screws into once it it is in the frame) so you have to take the non drive cup out first, but as its plastic it should come out if i just take pieces off a bit at a time.Right? or am i just being gay and not making anu sense.sam Quote Link to comment Share on other sites More sharing options...
DAB Posted March 25, 2006 Report Share Posted March 25, 2006 Firstly i am turning it the correct way, i even checked before making this post.But you cant take out the r-side cup first because it is attached to the bb itself ( the non drive is the loose one that the bb screws into once it it is in the frame) so you have to take the non drive cup out first, but as its plastic it should come out if i just take pieces off a bit at a time.Right? or am i just being gay and not making anu sense.sam12 years as a bike mechanic If the plastic cup won't come out!!! take out the other side...... Quote Link to comment Share on other sites More sharing options...
Sam Ward Posted March 25, 2006 Author Report Share Posted March 25, 2006 12 years as a bike mechanic If the plastic cup won't come out!!! take out the other side......Fair dooz12 years as a bike mechanic in this case was right.Cheers guys, problem solved.sam Quote Link to comment Share on other sites More sharing options...
DAB Posted March 25, 2006 Report Share Posted March 25, 2006 Fair dooz12 years as a bike mechanic in this case was right.Cheers guys, problem solved.samNo problem........ thats wat were hear for... Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.