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Broken cylinder head stud

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Pops400:
Have you ever seen Irwin Bolt Grips? Extractors that bite into the exposed bit with a reverse spiral flute.

Worth a try. I've removed all sorts of rounded off crap with them.

MarkCR750:
Bugger!, after you have welded it build a plasticine dam around it and fill it with plus gas or similar very thin penetrating oil,  leave it to soak down the threads, chin up it will come out!

Trigger:

--- Quote from: Pops400 on February 20, 2016, 06:27:16 PM ---Have you ever seen Irwin Bolt Grips? Extractors that bite into the exposed bit with a reverse spiral flute.

Worth a try. I've removed all sorts of rounded off crap with them.

--- End quote ---

Irwin bolt grips is for a rounded off head and if used on a stud, will chew it up more. Though you could get lucky.

Pops400:
Each to their own, I guess, but I've used them on Yank cars and pulled sheared studs with them over the years.

Anyways, the weld option seems to be preferred, so shan't argue with that as it obviously works.

Best of luck with getting it out.

royhall:
Hooray its out.

What a job that was, don't wish to break another of those ever.

Tried the welding the nut onto the stub method, it didn't work. Tried three times and the welds held up okay but it kept snapping the remaining stud lower and lower. In the end I put a piece of copper sheet on the crankcase and welded a right angled piece onto the stud, and then shocked it out with a centre punch and hammer.

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Worked okay but if you haven't got a TIG welder you will never do it this way as a Mig weld is just not strong enough to take the hammering.

Thanks all for the help, now onto the next problem.

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