Quote:
Originally Posted by DarrenSV650S
When it happened to me it was just the one stud. So a metal block was used as a guide to keep the drill straight. It was bolted to the engine using the other stud, and it had various different sizes of holes in it, all the same distance from the good thread to the broken one. The first smallest drill bit was used then the metal block was spun around to the next larger size etc etc
This was done until most of the broken stud was removed, then the original tap size was used to clear out the remaining metal.
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If only! I have one sheared off flush and the other protruding. I think I will have to make something up like you describe and find a way to clamp it to the head. I can use the one that projects to locate it and then, when I've fixed one I can use that screw to deal with the other. I had hoped to use the original clamping plate as Viney suggets but it won't come off the down pipe as there are collars at each end.
Thanks again for your interest.