ashleys sugden Posted January 3, 2013 Report Share Posted January 3, 2013 so i got some crank bolts off Dave Barrat today, appreciate it Dave! but they wont screw in, my old ones did exactly the same and stripped, i dont want to strip the new ones, and they will still not go in? i have used copper grease, cleaned the thread in the bottom bracket bracket, all threads look fine, any one have any solutions? i dont want to waste another set of crank bolts! Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 bump, need help soon as! Quote Link to comment Share on other sites More sharing options...
Danny00135 Posted January 3, 2013 Report Share Posted January 3, 2013 I have no idea how thats possible.. unless you have a BB that has an odd thread... Have you tried simply screwing them into your BB without the cranks on? If they don't go in then it's the wrong thread.... I always thought it was universal Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 I have no idea how thats possible.. unless you have a BB that has an odd thread... Have you tried simply screwing them into your BB without the cranks on? If they don't go in then it's the wrong thread.... I always thought it was universal yeah i took the cranks off and tried it, and they are the same crank bolts as what ive had before :/ should i clean the threads a bit more with a wire brush or something? Quote Link to comment Share on other sites More sharing options...
Danny00135 Posted January 3, 2013 Report Share Posted January 3, 2013 Get up some pics, I've never heard of this happening before.. Quote Link to comment Share on other sites More sharing options...
trials hoe Posted January 3, 2013 Report Share Posted January 3, 2013 how did the old ones strip? did they spin in easy 'till they went tight, and then strip? or did you have to force them in like they were cross threaded? Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 how did the old ones strip? did they spin in easy 'till they went tight, and then strip? or did you have to force them in like they were cross threaded? i just screwed them in and you could tell something was wrong, they shouldn't be stripped/cross threaded because the other day i just took them out to get some borrowed crank arms off and to put some other ones and, and they wouldn't go in, just took the thread off half of the alloy crank bolts, they started to strip when i tried putting them in, maybe the start of the thread has gone in the bottom bracket spindle or something? Quote Link to comment Share on other sites More sharing options...
trials hoe Posted January 3, 2013 Report Share Posted January 3, 2013 (edited) just having some random shit on the threads can be enough to cause a stripped bolt, are there no bits of the stripped bolt threads lurking in the bb axle threads? using the echo bolts in an echo bb? pics would help edit - you could have started the bolts off crossed, would explain why they where tight right from the first turn. alloy bolts shouldn't ruin a steel bb's threads though. Edited January 3, 2013 by trials hoe Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 just having some random shit on the threads can be enough to cause a stripped bolt, are there no bits of the stripped bolt threads lurking in the bb axle threads? using the echo bolts in an echo bb? pics would help Get up some pics, I've never heard of this happening before.. video and pics shortly Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 (edited) Picture quality makes it look worse than than it is sorry for the really bad quality! Edited January 3, 2013 by ashleys sugden Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 wont let me upload video Quote Link to comment Share on other sites More sharing options...
Danny00135 Posted January 3, 2013 Report Share Posted January 3, 2013 wont let me upload video Quickly put it on youtube then copy the link.. Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 Quickly put it on youtube then copy the link.. not good quality, sorry, but hope it will help Quote Link to comment Share on other sites More sharing options...
trials hoe Posted January 3, 2013 Report Share Posted January 3, 2013 (edited) that's taking threads off the end of the bolt dude, it looks like the threads on the end of it are gone too meaning it won't have any way of starting to turn in the threads of the bb. do you have a tap you could run down the bb threads? might be able to rescue the threads of the bolt, snap a pic of it as a silhouette with a light behind it so the threads are visable. Edited January 3, 2013 by trials hoe Quote Link to comment Share on other sites More sharing options...
thinkdougie Posted January 3, 2013 Report Share Posted January 3, 2013 Looks like bb threads to me? Quote Link to comment Share on other sites More sharing options...
Danny00135 Posted January 3, 2013 Report Share Posted January 3, 2013 (edited) ignore this I made an oopsie.. Edited January 3, 2013 by Danny00135 Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 that's taking threads off the end of the bolt dude, it looks like the threads on the end of it are gone too. do you have a tap you could run down the bb threads? yeah i know and no i dont, i dont have any steel bolts that size either to run down the thread Looks like bb threads to me? the threads look fine though :/ ignore this I made an oopsie.. i can at first, like a little bit, and no it isn't doing that, :/ Quote Link to comment Share on other sites More sharing options...
Mark W Posted January 3, 2013 Report Share Posted January 3, 2013 It may be worth tracking down some steels bolts from a friend just to clean them up - there's not much point in potentially laying waste to another set of alloy bolts. Having said that, if you tap the cranks on further with a mallet/hammer and block of wood first that'll mean that the crank bolts will have more thread contact so should be less prone to stripping. Plenty (plenty!) of grease will help get them going too. Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 It may be worth tracking down some steels bolts from a friend just to clean them up - there's not much point in potentially laying waste to another set of alloy bolts. Having said that, if you tap the cranks on further with a mallet/hammer and block of wood first that'll mean that the crank bolts will have more thread contact so should be less prone to stripping. Plenty (plenty!) of grease will help get them going too. i tried the block of wood thing when i rang tartybikes, and that didnt work either, but then it was too late to ring them back about it, ill try, i think the bolts are 14 or 15 mm Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 still not working everyone Quote Link to comment Share on other sites More sharing options...
ashleys sugden Posted January 3, 2013 Author Report Share Posted January 3, 2013 bump Quote Link to comment Share on other sites More sharing options...
dezmtber Posted January 3, 2013 Report Share Posted January 3, 2013 The axle is probbably 14mm not 15 like some of the trials echo ones Quote Link to comment Share on other sites More sharing options...
isitafox Posted January 3, 2013 Report Share Posted January 3, 2013 It's the standard press fit steel BB in a recent Echo frame Quote Link to comment Share on other sites More sharing options...
peggysue Posted January 3, 2013 Report Share Posted January 3, 2013 I had the same problem . My zoo piranha came with echo press fit bb and echo alloy bolts . First time I took them out to replace the bearings they refused to go back in and started to strip the ends of the alloy bolts . The threads in the bb are fine . The bolts just seem a little soft material wise . My fix was a lot of pressure on the bolts. You really need to push hard and straight while gently turning . They will eventually grip the good thread just past the stripped bit and go on easy after that . Have to do this every time I need to put them back in but it works . Hopefully yours will be the same 1 Quote Link to comment Share on other sites More sharing options...
Cap Posted January 3, 2013 Report Share Posted January 3, 2013 It may be worth tracking down some steels bolts from a friend just to clean them up Try this if you have not already Quote Link to comment Share on other sites More sharing options...
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