When I bought my '73 2.0 a few years ago, the car ran like cr@p so I took the motor out and disassembled the top end and found that one of the spark plug holes was completely stripped and a couple of the others were on their way to being completely stripped. I took the cylinder heads to my local VW dealer and they installed helicoils in all the spark plug holes. From what I've read, this method of repair is ok and can sometimes be even "stronger" than the original threaded holes. Part of me, though, would prefer to have the spark plug holes welded up with aluminum and then have the holes re-machined. Has anyone else had their spark plug holes stripped, and, if so, how did you repair them?
Thanks,
Alfred