Keith-R Posted February 9, 2010 Report Share Posted February 9, 2010 Guys, Just looking for any advice/suggestions. It appears that the thread on one of my middleburn rs7's is stripped and I now cant remove it using the puller. Does anyone have any ideas how I can remove it?? Thanks Quote Link to comment Share on other sites More sharing options...
Danny Posted February 9, 2010 Report Share Posted February 9, 2010 You need a reverse puller of some kind if you want to get it off without damaging it. Something like this http://www.laingsoutboards.com/Jaw_puller.jpg How did you manage to strip them in the first place Quote Link to comment Share on other sites More sharing options...
Keith-R Posted February 9, 2010 Author Report Share Posted February 9, 2010 You need a reverse puller of some kind if you want to get it off without damaging it. Something like this http://www.laingsoutboards.com/Jaw_puller.jpg How did you manage to strip them in the first place I sold the bike to a mate and only got it back recently....was fine when I sold him it!! Quote Link to comment Share on other sites More sharing options...
aener Posted February 9, 2010 Report Share Posted February 9, 2010 A motorbike flywheel-puller can do the trick, if you've got one of them. Failing that - as the one I got hold of wouldn't fit between my frame and crank - boil a big kettle of water, pour it over the crank so it's under a constant stream of water for as you can manage, then bash it with a hammer. It comes off without too much trouble. Had to do it a few times, as my middleburns stripped aswell. No idea why On a thread hijacking note, are stripped threads covered on the Middleburn warantee? They're fairly beaten up. Quote Link to comment Share on other sites More sharing options...
bigamac Posted February 9, 2010 Report Share Posted February 9, 2010 You need a reverse puller of some kind if you want to get it off without damaging it. Something like this http://www.laingsout.../Jaw_puller.jpg How did you manage to strip them in the first place Tried one of those before, it didn't work at all for me. Best trick, wood and hammer. Or a rubber mallet. Hitting it near the base of the cranks is how i do it Quote Link to comment Share on other sites More sharing options...
Twitch-119 Posted February 9, 2010 Report Share Posted February 9, 2010 If you dont mind damaging it, get a punch failing that then get a chizzle, preferbly blunt, or a big flatblade screwdriver, and hit it at the bottom nearest the axle you can get, and soak it with WD40 that always helps. Quote Link to comment Share on other sites More sharing options...
totaltrials Posted February 10, 2010 Report Share Posted February 10, 2010 These other types of pullers have never worked for me. When you're working on cheap shit cheesey chainsets it's quite common for the thread to just pull out, especially if the cranks are slightly seized onto the BB. I wouldn't expect it to happen with Middleburn cranks though . Anyway, hammer and wood will never work, unless your cranks are loose. The best thing to do is just ride your bike as normal without your crank bolt in. As soon as you feel it's slightly loose, you can knock it off. Shouldn't take long, just go for a bit of a ride out (not doing trials). Quote Link to comment Share on other sites More sharing options...
totaltrials Posted February 10, 2010 Report Share Posted February 10, 2010 Just realised, I don't know how I thought it was square taper cranks you have. I'll just leave it at that though. Quote Link to comment Share on other sites More sharing options...
Muel Posted February 10, 2010 Report Share Posted February 10, 2010 I'd link you to the Wiki topic I made, but i can't find it! Basically, get a 3 legged flywheel puller for a motorbike, never fails. Quote Link to comment Share on other sites More sharing options...
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