peggysue Posted June 13, 2009 Report Share Posted June 13, 2009 just got hold of a second hand echo urban... gets me back out riding ... however the top left brake mount on the rear of the frame (4 bolt mount) has stripped its threads. i did not even tighten it much before it went. sounds like it was knackered in the first place. god knows how im gonna fix it. basically im not going to have a rear brake till the threads are sorted. anyone got any ideas?thanks karl Quote Link to comment Share on other sites More sharing options...
theom Posted June 13, 2009 Report Share Posted June 13, 2009 (edited) are the threads totally stripped? you might be able to helicoil them. Edited June 13, 2009 by theom Quote Link to comment Share on other sites More sharing options...
trials biker Posted June 13, 2009 Report Share Posted June 13, 2009 Use the tap and die kit, to re-thread the hole to a slightly bigger bolt size and it should be fine, or another way could be to use some metal compound, then screw the bolt in then leave it to settle, then it should be fine it was for me it worked brilliantly. Quote Link to comment Share on other sites More sharing options...
peggysue Posted June 13, 2009 Author Report Share Posted June 13, 2009 there are about a couple threads at the bottom left . its gripped them but i dont dare tighten it no more . it feels soft as if the last threads are gonna give. what size tap would i need ? what the next size up ? and where would i get them from? thanks Quote Link to comment Share on other sites More sharing options...
Muel Posted June 13, 2009 Report Share Posted June 13, 2009 I wouldn't tap it bigger if I were you, it's a right pain in the arse. You need bigger bolts, you need to file the clamps out, you need bigger booster spacers, file the booster out.Just get it helicoiled, it's so much easier.I'd also make sure you have bolts that are as long as possible. Get ones that are too long, then cut them down until they fit, I've stripped mounts before from having bolts too short, you need at least 6/7mm of thread inside the frame, I've currently got about 12mm. Quote Link to comment Share on other sites More sharing options...
peggysue Posted June 13, 2009 Author Report Share Posted June 13, 2009 I wouldn't tap it bigger if I were you, it's a right pain in the arse. You need bigger bolts, you need to file the clamps out, you need bigger booster spacers, file the booster out.Just get it helicoiled, it's so much easier.I'd also make sure you have bolts that are as long as possible. Get ones that are too long, then cut them down until they fit, I've stripped mounts before from having bolts too short, you need at least 6/7mm of thread inside the frame, I've currently got about 12mm. i just rang a friend who said hes heard of helicoil kits too, do you have any idea what size i would need and where i could get them from? if i have to order one from the internet then so be it, but im hoping some local shop may have them. thanks for your help Quote Link to comment Share on other sites More sharing options...
kona1991 Posted June 13, 2009 Report Share Posted June 13, 2009 Does anybody know if epoxy resin would be strong enough for him to use? Quote Link to comment Share on other sites More sharing options...
Jack Chinnery Posted June 13, 2009 Report Share Posted June 13, 2009 Hey mate, I have 2 options you could use. Tap it, then helicoil it.Oruse a brake booster bolt. http://www.tartybikes.co.uk/product.php?pr...;category_id=75I know it's quite expensive, but its titanium and will be light/strong. Quote Link to comment Share on other sites More sharing options...
peggysue Posted June 13, 2009 Author Report Share Posted June 13, 2009 it seems the helicoil kit maybe the best option at the moment..... if im correct the bolt thread size is m5.... so ill need a m5 helicoil kit like this?http://cgi.ebay.co.uk/Helicoil-Thread-Repa...%3A1%7C294%3A50i hope this is the rightsize?????cheers Quote Link to comment Share on other sites More sharing options...
Earl Posted June 13, 2009 Report Share Posted June 13, 2009 (edited) it seems the helicoil kit maybe the best option at the moment..... if im correct the bolt thread size is m5.... so ill need a m5 helicoil kit like this?http://cgi.ebay.co.uk/Helicoil-Thread-Repa...%3A1%7C294%3A50i hope this is the rightsize?????cheersIt is M5 iv got a kit if you can get to louth ill do it for you if you want mate.Edit.That is the kit iv got on your link. Edited June 13, 2009 by Earl Quote Link to comment Share on other sites More sharing options...
peggysue Posted June 14, 2009 Author Report Share Posted June 14, 2009 It is M5 iv got a kit if you can get to louth ill do it for you if you want mate.Edit.That is the kit iv got on your link.thanks for the offer mate, but i dont drive so its a bit hard for me to do that. i think im gonna order that kit next week and try it myself.thanks for offering though,karl Quote Link to comment Share on other sites More sharing options...
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