I took the pulled stud to the local VW store and then realized it had been 'upgraded' to a coarser pitch by cutting and welding a bolt to it. Probably to fix an earlier pulled problem.
So I bought a good used stud (US$.75) and two case savers (chilean made, US$1 each) and proceeded to torque all nuts to 30ft/l, in case another one was shot, before removing the head and cylinder to fix the stud.
Of course, another stud pulled out, looks repaired in a similar fashion. Problem is, this one is 4 o clock in cyl 1, and goes through the case. I have the threaders and casesavers, but I am a bit worried of debris in this one.
Any ideas?
Ps. the case savers came with instructions to enlarge the hole to 12mm with a drill and then thread with a 9/16-12 threader (which I have)