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-   -   Socket Head Cap Screw Problem (http://www.advrider.com/forums/showthread.php?t=847125)

Hootowl 12-08-2012 11:46 AM

Socket Head Cap Screw Problem
 
I've got a buggered cap screw (Allen) head bolt in a cramped location with very little room to maneuver tools around the head of the bolt.
The socket head isn't very deep. An easy out doesn't grab enough bolt material to do its job.
There isn't room around the outside of the bolt to use a tool that grabs the outside of the bolt

The only idea I have right now is welding a nut to the head of the bolt but that's going to be problematic as well due to the space constraints.

Any high tech tools out there in the market place that might work?

Ever use these? http://www.grahamtool.com/boltandscrewextractor.aspx

Richard

ABHooligan 12-08-2012 12:01 PM

Sometimes I use a cutting wheel on a dremel tool to make a slotted head, then remove the screw with a flathead screwdriver.

Midnightventure 12-08-2012 12:07 PM

If you can get to the side of the head with a sharp center punch sometimes you can strike the center punch sharply and loosen it.

Hootowl 12-08-2012 12:12 PM

Quote:

Originally Posted by Midnightventure (Post 20205719)
If you can get to the side of the head with a sharp center punch sometimes you can strike the center punch sharply and loosen it.

Thanks for the ideas so far.
I forgot to mention that the bolt is in way too tight hence the buggered head.
I hate fixing other people's FU's!

gpounce 12-08-2012 12:17 PM

If you can swing it, welding a nut on is a common technique, the sharp spike of heat also helps break loose any corrosion/locktite etc that may make removal more difficult. I've never yet had any of the magic tools work for me otoh using a left-hand drill to core out the screw shank often loosens it to the point where the torque imposed by the drill unscrews it. Of course getting a left hand drill into play and not wandering out the side of the bolt and not going too deep is the fun part...

KeithinSC 12-08-2012 01:30 PM

Get a Torx bit a little larger than the hex. Pound it into the cap screw. Hopefully the hammering will help break it free, and the fluted on the Torx have enough meat not to strip out further. Might ruin the torx:cry

Heat it if possible the cool it quickly. Thermal shock.

Good luck.

fritzcoinc 12-08-2012 01:36 PM

Three suggestions:

Cut a pc of shim stock to wrap arond the allen wrench and drive it into the socket. This may give enough grip to get it out.

Try a hand held hammer type impact. Again drive a over size allen ( inch size or Torx ) into the socket. The blows from the impact do wonders to loosen up stuck bolts.

From now on, try anti sieze to prevent reoccurance.

Wrap shim stock like this:
http://fritzcoinc.smugmug.com/Other/...DSCN0350-S.jpg

Drive it in there: ( is that what she said? )
http://fritzcoinc.smugmug.com/Other/...DSCN0351-S.jpg

Stan_R80/7 12-08-2012 02:04 PM

Welding an allen hex bit into the cap screw is another (similar) option. The graham tool bolt extractor may work. Then, when it doesn't, weld it into the head of the cap screw. Good luck!

D.T. 12-08-2012 02:24 PM

Vice grip?

anotherguy 12-08-2012 02:32 PM

Occasionally a Torx bit driven into a bad allen will remove it.

Hootowl 12-08-2012 04:00 PM

Quote:

Originally Posted by D.T. (Post 20206341)
Vice grip?

Not enough room

Hootowl 12-08-2012 04:01 PM

Quote:

Originally Posted by anotherguy (Post 20206395)
Occasionally a Torx bit driven into a bad allen will remove it.

Thought of that already but not enough room to wack it with a hammer

stainlesscycle 12-08-2012 04:29 PM

drill it out with a bit slightly larger than the diameter of the shaft. the head will spin off, removing the pressure from the shoulder of the head. then remove part, and remove remnants of screw. or use a left handed bit. either way if it's seized from overtightening, once you remove the head, it will be simple.

Benesesso 12-08-2012 06:19 PM

Can you post a good sharp pic of it?

anotherguy 12-08-2012 06:56 PM

Quote:

Originally Posted by Benesesso
US out of the UN, UN out of the US.

Well I'll be damned. A John Bircher sighting.


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