Olly C Posted June 17, 2012 Report Share Posted June 17, 2012 Hey people, I was wondering if any of you guys out there with 2011/12 Echo or ZOO! frames with the Echo Urban ISIS BB's have any experience with removing them from the frames? I'm trying to remove my 2011 ZOO! Piranha's BB and currently having no joy what so ever, I've been told by people that the correct method is basically knocking it out with a mallet by hitting the spindal from one side then once you get the bearings out of that side pop the spindle back in and do the same to the other side too. Sounds easy enough but myself, my brother and now a friend have all tried wacking it as hard as we dare and it hasn't budged! I'm basically using a mallet that looks like this: Then placing a block of wood over the ISIS Spindle and hitting it while holding the frame across my legs or held onto grass with a hold dug for the spindle and bearing to fall into. Has anyone removed these type of bottom brackets before? How easy did you find it? Do you have any other tips than those mentioned? Really want to get this done today so I can send off the BB to be fitted on a new frame tomorrow. Cheers Olly. Quote Link to comment Share on other sites More sharing options...
isitafox Posted June 17, 2012 Report Share Posted June 17, 2012 You need something solid to rest the frame on, all the power from the impact will just be getting absorbed by your legs and the grass. Once you have it on a good strong solid object like a bench or vice it should free up, if not then get a bigger hammer! Quote Link to comment Share on other sites More sharing options...
Olly C Posted June 17, 2012 Author Report Share Posted June 17, 2012 You need something solid to rest the frame on, all the power from the impact will just be getting absorbed by your legs and the grass. Once you have it on a good strong solid object like a bench or vice it should free up, if not then get a bigger hammer! I thought this might be the case, I just didnt know what points of the frame to rest on the solid surface as not to dent or bend it, its a pretty weird shaped frame.. Quote Link to comment Share on other sites More sharing options...
isitafox Posted June 17, 2012 Report Share Posted June 17, 2012 Yeah I know what you mean, ideally you want to rest the edges of the BB on a vice whilst someone holds it steady. Might be worth hanging on till tomorrow morning and ringing Tarty for some advice then you'll still have time to remove it and post off unless your working. Quote Link to comment Share on other sites More sharing options...
Olly C Posted June 17, 2012 Author Report Share Posted June 17, 2012 So... It was basically impossible to knock it out with a mallet, I knew what kind of tool I really needed I just didn't know if such a tool existed, well it turns out it does exist and my next door neighbour happen to have one: I held two of the arms just in place on the frame so that it wasn't covering the bearings themselves, he held the other one while tightening at first with his hand then with an adjustable spanner so it went on to the frame like this: This is what a top view of the setup looked like: As expected it was in really, really tight, I'm pretty sure no grease at all was used when originally putting the bearings into the frame so to get the first bearing out it was tough, after that I popped the spindle back into the other side and popped that one out too (which was slightly easier) The end result being: Got there in the end! 1 Quote Link to comment Share on other sites More sharing options...
trials_pimp Posted June 17, 2012 Report Share Posted June 17, 2012 Just so you know thats a bearing puller. Easily available from any decent tool shop. When I did a BB change for a friend I used a mallet to remove, then made a tool to fit out of a long threaded rod, and some spacers and long socket that fitted over the axle. Easy Quote Link to comment Share on other sites More sharing options...
dann2707 Posted June 17, 2012 Report Share Posted June 17, 2012 Looks like something they'd use in a real budget dentist haha that'd be awful. 1 Quote Link to comment Share on other sites More sharing options...
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