"Karls Vladimir Peņa" wrote:
>
> Hi Ramva!
>
> I've been rebuilding my '70 bug's engine (1300cc SP mostly stock) and
> everything has been just perfect except for one thing. Some of the exhaust
> studs had some threads stripped, so I got new ones and removed them using
> the double nut technique and in a couple of them, vice grips. The problem
> is, one of the studs had no threads at all, It seems the nut was long gone
> and the J-Pipe stripped it. When using the vice grips the stud just broke
> leaving only about 5mm of it out of the head. Anyways it has no threads, and
> the vice grip has no grip at all. How can I remove the stud without removing
> the head? It seems like I'm cursed with stubborn nuts, bolts and studs.
> Remember the axle nut from hell on christmas 2003?
>
> Thank you all for your help.
> Karls
It's fairly easy: Weld an 8mm nut (13mm head) on the remaining stub, get
it red hot and allow it to cool a little. Then turn the stud out with a
normal wrench or whatever tool you like. The heat generated in the
process should help loosen the stud too. If the nut snaps off, try
again. You can try it dozens of times. Just be careful not to weld the
aluminum around the stud. Weld won't stick to it, but it will melt it.
Jan
|