sheered rear pinch bolt

[6m459]

I was removing my rear wheel today and somehow managed to sheer off the axle pinch bolt.

 

I was surprised 'cause I didn't put a lot of force into it, but I guess leverage did the trick.

 

Anyways, I have a small amount of the end of the bolt sticking out at the underside of the pinch. It seems pretty well seized in there.

 

I immediately reached for the kroil and got it started soaking for about half an hour. I then put a nice sharp pair of vicegrip jaws onto the protruding bolt end, but still couldn't shift it. I then tried heat but no go so far.

 

I am going to let the kroil soak over night and then have another go in the morning. If still no joy, I think I'll try MORE heat, lots more heat.

 

I am being very gentle as I don't want to run the risk of sheering off or damaging the protruding bit of the bolt, which would leave me nothing to work with.

 

Have I overlooked any other good approaches here ? I really don't want to have to drill this out! Advice welcome.

 

Thanks,

 

Brian H.

[MiCarl]

My preferred tool is heat. You did pull the wheel so you aren't cooking the seals?

[Monty]

Go get a pair of these. One of the best tools I ever bought. They are designed to take out broken studs and bolts. Work VERY well. They have a different jaw than regular channel locks.

 

http://www.channellock.com/acb/stores/1/410_-_9_5_inch_NUTBUSTER_reg__P34.cfm

[6m459]

You did pull the wheel so you aren't cooking the seals?

 

Yes, the wheel is off.

 

http://www.powergate.ca/~bjh/pix/DSC00251-800.jpg

 

I am getting new tires tomorrow!

 

Thanks,

 

Brian H.

[wes0778]

If you can, drill a small hole through it. Then with a SMALL brazing tip heat the bolt through the hole you drilled to almost red (or as hot as you are comfortable with depending on attached parts), then take a squirt bottle and spray water through the hole. That should shrink the piece of the bolt. let it cool completely then grab it with the vice grips. Unless it is actually seized from pulled threads it should come right out.

[6m459]

Got that sucker out of there. The Kroil worked its magic overnight! Kroil and patience, what a team.

 

I got hold of the end of the bolt with my nicest, newest, sharpest pair of vice grips (fwiw, v.g.'s are my desert island tool btw). I rocked it back and forth gradually and soon was able to get it to screw all the way out.

 

I am definitely going to put a bit of lithium grease in that thread when I reassemble.

 

Thanks for all the moral support and suggestions. A great help as always.

 

Cheers,

 

Brian H.

[jcdas]

I always use special anti seize compound when I re-assemble my bike.

CTC has some nice stuff. Works great. Prevents the problem when you try to do it again in a couple of years.

[6m459]

use special anti seize compound

 

Well I likely would have used something in those threads too, but I think its the first time I have ever taken the rear wheel off and on again my self on this bike. Prior to this, when changing tires, I have always had it done for me by the shop I bought the tire from.

 

This time however the shop I chose to deal wih had a 'no old bikes in the shop' policy so it was a wheels only transaction.

 

Oh well, it'll be right for the next guy who takes it off anyways.

 

Cheers,

 

Brian H.

[GeorgeS]

Always Lubricate threads, before Installing. All of them !!

[Bob Myers]

This time however the shop I chose to deal wih had a 'no old bikes in the shop' policy so it was a wheels only transaction.Brian H.

 

They have a what?!?!