Shaun H Posted February 22, 2008 Report Share Posted February 22, 2008 Snapped a bolt in my frame, it's in there really really really f**king tight. Got some pliers on 'em as hard as I possibly could and the will NOT move.What are my options? (Taking into account I'm at Uni, the more convienient the better)Gunna ask the tech guys if they can help me out but there's a fairly big chance they'll tell me to get bent. Quote Link to comment Share on other sites More sharing options...
Adam-Griffin Posted February 22, 2008 Report Share Posted February 22, 2008 Blow torch the mount maybe ? Never had any trouble with threading mounts or anything like that my self so i'm just guessing, Grind it out, drill the mount and helicoil it ? Gently knock the bolt to loosen it ? Sorry if i couldnt't help, Just a few Suggestions=]=]=] Quote Link to comment Share on other sites More sharing options...
MikeCottTrials Posted February 22, 2008 Report Share Posted February 22, 2008 Last time that happened to me i broke out the mole grips and the biggest armed mate i could think of and all was well Quote Link to comment Share on other sites More sharing options...
Jamie_Neal Posted February 22, 2008 Report Share Posted February 22, 2008 Cut a slot in the top and use a screw driver orfile the edges flat and use an adjustable or molegrips work better than pliers. Quote Link to comment Share on other sites More sharing options...
MikeCottTrials Posted February 22, 2008 Report Share Posted February 22, 2008 Cut a slot in the top and use a screw driver orfile the edges flat and use an adjustable or molegrips work better than pliers.for the love of god dont do that screw driver thing, theory is sound but it just doesnt work in the slightest Quote Link to comment Share on other sites More sharing options...
stuie Posted February 22, 2008 Report Share Posted February 22, 2008 get a smaal drill and drill a hole down the middle and make sure its nice and central because you dont wana mess the threads on the frame up....but by doing that you well release the presure and it should come out nice and easy...i have had to do it before but you have to be so so careful on the drilling on the snapped bolt. Quote Link to comment Share on other sites More sharing options...
dave85 Posted February 22, 2008 Report Share Posted February 22, 2008 If there's any bolt sticking out the frame, the first recourse should be a good set of mole grips. Only when they fail do you start using heat or drills Quote Link to comment Share on other sites More sharing options...
Josh Greenan!!!!!!!!!! Posted February 22, 2008 Report Share Posted February 22, 2008 Get a reverse thread screwdriver from a hardware store, as you screw it in the bolt comes out. Quote Link to comment Share on other sites More sharing options...
psycholist Posted February 22, 2008 Report Share Posted February 22, 2008 (edited) Reverse thread screwdriver? Surely you mean a left handed one ... Cutting a slot into the bolt head is guaranteed not to work if clamping it with a pliers hasn't worked already. I'm guessing the bolt sheared off because it's been tightened against the bottom of the bolt hole, so the threads in the frame should be fine. Another vote for the Molegrips/Visegrips here. Edited February 22, 2008 by psycholist Quote Link to comment Share on other sites More sharing options...
2sixstreet Posted February 22, 2008 Report Share Posted February 22, 2008 Go for the vicegrips or drilling/ezyout option. Heat/bashing/grinding as a last resort. Quote Link to comment Share on other sites More sharing options...
Ben John-Hynes Posted February 22, 2008 Report Share Posted February 22, 2008 Mole gripsShould do zee trick!Thought your wheel was the next thing to break! Quote Link to comment Share on other sites More sharing options...
Adam-Griffin Posted February 22, 2008 Report Share Posted February 22, 2008 (edited) Just thought of abit of a silly idea, might work, stripp the bike down, screw the bolt in a vice REEEEEELLLY tight and turn the frame maybe ? Just an idea Edit: i have absolutely no recolection of writing this last night ^^^^ Edited February 23, 2008 by Adam-Griffin Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted February 22, 2008 Report Share Posted February 22, 2008 I'd first soak it in WD40, then get some big mole grips and try my best to undo it.Sounds like the bolt's at the bottom of the thread, so it's been forced against the bottom of the frame, so it's wedged.Get a slightly bigger spacer for the next bolt. - I found that the rollers our of KMC Kool chains are perfect size. Quote Link to comment Share on other sites More sharing options...
Shaun H Posted February 22, 2008 Author Report Share Posted February 22, 2008 Sounds like the bolt's at the bottom of the thread, so it's been forced against the bottom of the frame, so it's wedged.Get a slightly bigger spacer for the next bolt. - I found that the rollers our of KMC Kool chains are perfect size. That's what it's done initially. Then it's somehow stripped the thread only at the bottom of the mount, then as I've tried to take the bolt out, the swarf has been dragged through the rest of the threads chewing them up until it got so hard to undo that the bolt just sheared on me.Already ordered some custom spacers off of Edd Potts. Quote Link to comment Share on other sites More sharing options...
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