downhill_rob2@hotmail.com Posted May 22, 2005 Report Share Posted May 22, 2005 >_< im sick of my bike braking all the time!! This time, my bottom braket was loose, so i started to screw my crank remover into the crank, it got tight, then when i started to tighten the other bit on the crank tool, it just pulled the crank tool out of my crank and stripped all the treads!!! now the tool wont go in!! So i tryed to get 2 big rench thingys behind the bashring and then push against the frame to try and pull it off! but it never, so i used more power, and then the bottom braket just pulled right out of the frame!! the thing is, my bike is still under warrenty, so do you think i could claim? i've only had it for about 1 month (its a onza T-pro 05) and bought it from supercycles. I dont think that the BB shell will be stripped, because it happened on my old bike. What shall i do? Quote Link to comment Share on other sites More sharing options...
Swize Posted May 22, 2005 Report Share Posted May 22, 2005 Ring them up its not like you did anything wrong ; unless you screwed it in funny but it shouldn't just rape the threads if you screwed it in ok >_< . Sam Quote Link to comment Share on other sites More sharing options...
nb88 Posted May 22, 2005 Report Share Posted May 22, 2005 Dont really think that'll be warranty worthy....as you shouldve removed the crank properly with a good tool. Has the bb thread in the frame totally gone? nozman. Quote Link to comment Share on other sites More sharing options...
TheMunn Posted May 22, 2005 Report Share Posted May 22, 2005 I had a new t-pro in where I work not long ago, they don't seem to be put together properly, I had to tighten loads of part's on the bike. My thought would be to take it to a good bike shop and get it sorted. Quote Link to comment Share on other sites More sharing options...
Bionic Balls Posted May 22, 2005 Report Share Posted May 22, 2005 oh dear! i have to admit that i have stripped a crank thread before, but i am always really careful if i ever have to take a crank off nowadays (ptfe tape, heatgun, shock with hammer etc!). i really don't know if you'll get much luck with supercycles, but it should probably still be ok to use >_< the crank will be much easier to get off now that the BB is off the bike (just use a punch, hammer and vice). Then, perhaps get the threads in the BB cleaned out (specialist tool at your LBS), and put it back in with some loctite. hope you sort it :( adam Quote Link to comment Share on other sites More sharing options...
Munki Posted May 22, 2005 Report Share Posted May 22, 2005 I had a new t-pro in where I work not long ago, they don't seem to be put together properly, I had to tighten loads of part's on the bike. My thought would be to take it to a good bike shop and get it sorted. ← I can't imagine many bikes get shipped out from suppliers in ready to ride condition. I sure they advise you to check over all bikes before you ride/sell them anyway. Quote Link to comment Share on other sites More sharing options...
guineasmithpig Posted May 22, 2005 Report Share Posted May 22, 2005 the only 'proper' way to remove a crank arm if the threads have gone would be a 3 or 4 armed puller. cranks should only be removed with force applied to the crank arm and the bb axle. u shuldn't use the frame as a base for leverage. thats called 'ham-fisted' in engineering:p i know it is a way of doing it, but i'd be embarrassed to try passing the blame onto the bike manufacturer after doing that! i would recommend having the crank taken off by someone who has the right tools for the job, then remove the bb and and check the damage. then if u do need to contact supercycles, inform them that the bb was loose in the first place, and that the threads in the crank stripped even when using the correct tools. u should be able to get the cranks replaced, but i'd be suprised if they'll give u a new frame. if u tell em how u did it that is... >_<" if not, a decent bike shop, or custom frame manufacturer/repairer should be able to fix it. i'm guessing the onza mods have quite thick bb shells. the shell can be machined out, removing the damaged threads and some more material, before having a sleeve bonded inside. this sleeve will then be rethreaded (if it isn't already) and u can fit ur bb nice and easy :( smithy Quote Link to comment Share on other sites More sharing options...
Luke Drewery Posted May 22, 2005 Report Share Posted May 22, 2005 Seeing as most of the time bikes arent properly put together (not trials worthy anyway) then you should try and get supercycles to sort it out for you. The best thing to do when you buy a full bike (i stopped going own that route a long time ago) is to check and tighten evrything on the bike and set it up just how you want before you ride it then you shouldnt have many problems...so yeah, see what supercycles say >_< Quote Link to comment Share on other sites More sharing options...
Mr Motivator Posted May 22, 2005 Report Share Posted May 22, 2005 Moral of the story.. Buy a good bike. Actually, thats a little harsh and im not harsh, so in future remember to lube up yer crank toool >_< Quote Link to comment Share on other sites More sharing options...
guineasmithpig Posted May 22, 2005 Report Share Posted May 22, 2005 moral o the story don't bodge bikes. i used to all the time, and wasted lots o parts. not worth it for the sake of 2 days not ridin same reason i posted the thread about trials injuries and got my physio involved. for the sake of a week or two gettin fixed, ur settin urself up for a few months out in the future by riding on untreated injuries just think, after strippin ur threads in the crank, if u'd told supercycles straight away, they wud have arranged for replacement cranks and cover labour charges (at least, thats what ur entitled too, and u shud have pushed for it). now, because u bodged it urself, they have every right to deny u a new frame. worth a couple o days wait? hmmmmmmmmmm........ not pickin on the rider in question. just tryin educate some of the less experienced riders among us. i've been there and done this before. feels far better gettin new bits through the post than havin to not ride for weeks and work instead, savin to buy new stuff >_< smithy Quote Link to comment Share on other sites More sharing options...
Mark W Posted May 22, 2005 Report Share Posted May 22, 2005 They might give you a half-price 'crash replacement' frame, but you won't get a free new frame, seeing as it was basically your fault the BB's now lacking in the thread department. Oh, and to be fair Sam, you're talking complete and utter shit >_< Quote Link to comment Share on other sites More sharing options...
Mr Motivator Posted May 22, 2005 Report Share Posted May 22, 2005 (edited) Oh, and to be fair Sam, you're talking complete and utter shit >_< ← Yeah thanks for reminding. I read the thread after id replyed. Edit, now for a more formal reply; Ok for future reference, if your having any difficulty removing your cranks boil up a kettle of water and pour it all over the bb end. Under heat atoms vibrate and therefore make the metal expand making it easyer to remove the cranks. This works well for a lot of things such as stem bolts etc. I expect your pretty Peeed off that this has happened and id probably cry, but give super cycles a ring and see what they have to say. They might let you get a 2nd frame a little cheaper or something, but if they dont then see if you can get the BB shell re-tapped by a local engineer :( Sam Edited May 22, 2005 by Sam@SouthTrials Quote Link to comment Share on other sites More sharing options...
downhill_rob2@hotmail.com Posted May 22, 2005 Author Report Share Posted May 22, 2005 (edited) i really don't know if you'll get much luck with supercycles, but it should probably still be ok to use >_< the crank will be much easier to get off now that the BB is off the bike (just use a punch, hammer and vice). Then, perhaps get the threads in the BB cleaned out (specialist tool at your LBS), and put it back in with some loctite. ← My thoughts exactly!, i have got the BB off by using your method, and instead of using loctight, im using this wood glue stuff thats meant to be better (Y) its meant to dry harder that the wood. i tryed the loctight on my old bike (cleaning all the aplications properly with some meths) and it never seamed to work. The problem is, when i put the BB back in the shell, it just spins and doesnt tighten, i can rock the BB side to side a little bit. Hopfully the wood glue will work (Y) EDIT: just thought i would say, i think the threads (from what i can see and feel) in the BB shell are fine. But even so, the threads on the BB its self are fine (Y) Im just going to buy myself a new BB from tarty bikes when they get them in stock if this method comes loose :( Edited May 22, 2005 by terror-error Quote Link to comment Share on other sites More sharing options...
onzamad Posted May 23, 2005 Report Share Posted May 23, 2005 (edited) Seeing as most of the time bikes arent properly put together (not trials worthy anyway) then you should try and get supercycles to sort it out for you. The best thing to do when you buy a full bike (i stopped going own that route a long time ago) is to check and tighten evrything on the bike and set it up just how you want before you ride it then you shouldnt have many problems...so yeah, see what supercycles say >_< ← no offence but its his fault at the end of the day, you shouldn't just rag things apart till they break and expect somebody else to sort it out for you. the bit with the threads going in your cranks, thats probably not your fauly as its dont it loads of people i know, but riping the threads yout of your bb shell, thats your own fault.] but if it helps, if supercycles dont fix it, take it to your LBS and they can re-tap the threads. ahhhh. i see people have alreayd said that, fair enough Edited May 23, 2005 by onzamad Quote Link to comment Share on other sites More sharing options...
Tomm Posted May 23, 2005 Report Share Posted May 23, 2005 Your frame is most likely fooked. You can try tapping some more threads, but it won't work. I know this from experience. You're better off going for a crash replacement and kicking yourself for being a ham-fisted mechanic >_< Quote Link to comment Share on other sites More sharing options...
Apollo13 Posted May 23, 2005 Report Share Posted May 23, 2005 Well what i did when that happened to me a few days ago, was i stripped the whole bike down, put it on a chair, and bashed the crank arm off with a hammer, it came off after the third hit :( Nick >_< Quote Link to comment Share on other sites More sharing options...
downhill_rob2@hotmail.com Posted May 23, 2005 Author Report Share Posted May 23, 2005 Well what i did when that happened to me a few days ago, was i stripped the whole bike down, put it on a chair, and bashed the crank arm off with a hammer, it came off after the third hit (Y) Nick :) ← Read the other threads mate. I had a look at it tonight after leaving it for about 24 hours to see if the blue had set, but it hadnt :) Im going to buy a new BB to see if that works.... hopfully it will!!! Quote Link to comment Share on other sites More sharing options...
Nick Garland Posted May 23, 2005 Report Share Posted May 23, 2005 Did you rip the cup out too as if you did then buying a new BB wont really help unless its a threadless one. As everyone said wrenching it off was dumb. If the crank extractor fails, tap it off with a hammer however long it takes its better than what you did. Quote Link to comment Share on other sites More sharing options...
BI-KING Posted May 24, 2005 Report Share Posted May 24, 2005 (edited) Rite Rob, If the bottom bracket just fell out when you were leavering the crank arm off then some threads are gone!!! but which ones?? Are they gone on the bottom bracket cups or actually in the frame?? :S It cant just rip out, then be fine :D and putting it back in will probs make it even worse :( . Just take it all off and have a look at which threads have gone (pray its the bottom bracket cups) :D If it is get a new one :P If its the frame, I very much doubt super cycles will give you a replacement as they are tight as fuk :D :D (Y) Edited May 24, 2005 by BI-KING Quote Link to comment Share on other sites More sharing options...
RobinJI Posted May 24, 2005 Report Share Posted May 24, 2005 If the thread in your cranks ever goes, then the best thing to do is to use a car fan wheel puller of thingy to take off the crank. They have 3 arms that you hook behind your bash guard (or a car fan wheel) and a stick that pushes on the bb where a normal crank extractor does. Quote Link to comment Share on other sites More sharing options...
CoppellStereo Posted May 24, 2005 Report Share Posted May 24, 2005 put JB Weld (a cold weld) in your BB shell, and then get your BB in straight, and let it sit for a day or 2, and it will be in for good! (Y) :D Quote Link to comment Share on other sites More sharing options...
Bionic Balls Posted May 24, 2005 Report Share Posted May 24, 2005 (edited) i'd reccomend this...similar price to a UN52, and you can get it long enough for a front freewheel too (127.5mm axle) http://www.wiggle.co.uk/ProductDetail.aspx...goryName=Bottom Brackets&ProdID=5360008672&UberCat=0 the link thingy doesn't link it- so...you'll just have to copy and paste... this is designed exactly for what you've done.... adam argh...this sucks: try this one... http://www.wiggle.co.uk/ProductDetail.aspx? W=0&Manufacturer=&UberCatName=&Cat=cycle&CategoryName=Bottom Brackets&ProdID=5360008672&UberCat=0 copy it one line at a time...paste each one into the address bar with a space betweeen bottom and brackets... (Y) Edited May 24, 2005 by ad101 Quote Link to comment Share on other sites More sharing options...
downhill_rob2@hotmail.com Posted May 24, 2005 Author Report Share Posted May 24, 2005 I think i may have found the BB you were talking about ad. is it the YST threadless one? I may cansider this as i think it may be my threads in the BB sheel that are fooked :angry: Will this BB come loose at all, or dont you know? Quote Link to comment Share on other sites More sharing options...
Bionic Balls Posted May 26, 2005 Report Share Posted May 26, 2005 Yes...the YST threadless one (Y) should be dandy....very useful actually :- adam Quote Link to comment Share on other sites More sharing options...
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