09-08-13, 11:13 AM
If you have clearance and enough thread I heat them with a blow torch and then use Snap-on stud extractors,, which are like a socket but have tapered rollers inside which grab the stud and tighten as twisted anti clockwise. 9 times out of 10 they will come out. if not I just pull the engine out and drill and helicoil them....
Owner of Motorcycle Republic, Specialist in unfucking things that others have fucked up.