How would you remove this bolt?

[Waitey]

As above. It's an rounded Allan bolt.

It's recessed about 50mm

So far I've tried a torx bit hammered into it but all I do is round it off more!

It's pissing me off now!

 

[SkidMarx]

Hammer a bigger torx bit in, works 90% of the time, give it some death.

Failing that sometimes you can whack a multihex socket over it, space permitting.

 

[Gregor11]

Either knock a socket on or perhaps try mole grips?

 

[Fred@BTM]

what is it?

 

[Waitey]

Either knock a socket on or perhaps try mole grips?

Too tight for that.

what is it?

Allen bolt recessed into the head of an R1 bike engine.

 

[Laura]

tac weld a nut onto it?

 

[Phil_ip]

Drill it and use an easy out?

 

[MartinR]

Drill it and use an easy out?

^^+1

 

[jenic]

tac weld a nut onto it?

Thats what I though, but looks tight for space there.

 

[Rhys Beal]

Sharp small chisel and a ball pein and maybe abit of heat

 

[172Ben]

I would chizel two notches into either side, so i could get a big screwdriver in it.

Worth a go with the space you got to work with by the looks of it.

 

[Waitey]

Yeah it's the space thats stopping me getting at it. You can't get a drill in as the chuck gets in the way.

I'm going to buy some cheaper (softer) torx bits tomorrow to see if I can get one to mash into it. It seems too hard to chisel into but I'll buy a finer chisel and try that.

I can't use a welder as it'll bugger the magnesium head and with the room I have I'll probably tack it to the coolant pipe.

 

[Adam.]

I'd be getting a screw driver or a chisel onto that tbh.

 

[rosco454]

Looks like a tw*t to get in at,if the torx bit doesn't work a set of these could be your friend http://www.auntiesatticonline.co.uk...th-reverse-thread-8---16mm-ber2501-1169-p.asp. Basically a more substantial easy out which is a good thing as if you try a normal easy out and snap it then the job is pretty much goosed as they are made from hard as f**k type hard stuff!

 

[jenic]

If you do get a bit on it then it might be worth using an impact driver on it. One of the old fashioned hit it with a hammer type.

 

[Dan519]

Torx bit, no question

 

[Dan172ph1]

Before you try any of the above get it really hot with a small ish blow torch this will also help loosen any lock tite.

 

[Xanda73]

Have you tried shocking it with a soft drift and a hammer? Also worth applying some penetrating oil and leaving for a while. Any type of screw driver approch won't work as the bolt will be far too tight, hence rounding off in the first place. Good luck!

 

[Waitey]

The bolt is like cheese. Going to have to drill the head off it and extract the stub hopefully.