Guest Posted April 13, 2010 Posted April 13, 2010 (edited) Got rear wheel off, took old sprocket off, thats all fine!Put new one on, go to tighten the bolts up on to the threads and the bolts wont turn on the thread, and the thread itself is spinning!?Any ideas?!?!?!ARGHHH!!! Edited April 15, 2010 by Anonymous Quote
Guest Posted April 13, 2010 Posted April 13, 2010 Been a while .. sound like captive studs. Can you see the head of the stud from the other side? Quote
Guest Posted April 13, 2010 Posted April 13, 2010 No, can't see any head of the stud?I can try and take a picture/two for you if that would help? Quote
Guest Posted April 13, 2010 Posted April 13, 2010 pictures are always good. What bike is it?I seem to recall having this problem on a bike i worked on. Think I had to hold the stud still, running nuts down it til they reached the sprocket. Then tightened it properly as it stopped the stud spinning .. if that makes sense? Quote
Guest Posted April 13, 2010 Posted April 13, 2010 http://i40.tinypic.com/2j2ib29.jpghttp://i43.tinypic.com/2962ww.jpghttp://i41.tinypic.com/qxuli9.jpghttp://i43.tinypic.com/izrq5z.jpg Quote
Guest Posted April 13, 2010 Posted April 13, 2010 Don't know how helpful they are but I hope it gives some indication? Quote
Guest Posted April 13, 2010 Posted April 13, 2010 Lol, well it proves you can't see the back !!What bike is it? and can you stop the stud from spinning? Use a wire brush to make the thread as clean as possible. WD40 will aid the cleaning. You don't want the nuts biting as you turn them. Ideally, you want to be able to spin them down to the sprocket, then spanner 'em Quote
TC Posted April 13, 2010 Posted April 13, 2010 It sounds like the back of the Thread has come away from the inside of the wheel and is free to rotate (Really un-usual for one thread let alone all of them). Or the other type of thread is screwed into the wheel.Like Dan says try to clean the thread (Wire wool is good) Then see if you can put the nut on and pull the thread against the inside of the wheel to cause pressure then nip the nut with a spanner. Quote
skatefreak Posted April 13, 2010 Posted April 13, 2010 HeyYour in luck mate!You have the sprocket on backwards. Changed my rear sprocket today and you will find that the threaded studs have a rectangular edge on the other side which fits into the grove in the sprocket (other than that they arnt secured to the wheel itself and so will turn freely).Take the sprocket off, align these rectangular bits to fit in the grove and turn it round and press the sprocket on when doing up the bolts. Jobs'a good'un!Ironically the studs dont secure the sprocket directly to the wheel but the other end of them go into the wheel to take the strain.Let us know how it goes.Hope it helps!Best regards-Jvr Quote
Guest Posted April 15, 2010 Posted April 15, 2010 Skatefreak - I think you're right! Got a guy from bike shop to come pick it up and sort it for me, and thats exactly what he said he thought it was.... He's gonna sort it all out for me, put a new chain on there too and then he's gonna do my fork seals and MOT Glad its nothing serious! Said I should be able to get it back on Mon/Tuesday! wooo!! Quote
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