I have been working on a stripped oil pan drain hole for a while, but have the problem only partially solved. As apparently there is no such thing as an over-sized drain plug as large as that which fits a Volvo (at least not known to any of the auto parts places in my area), I ended up tapping the pan to 1/2" pipe threads and then using a brass plumbing style plug. Worked ok but since plumbing threads are slightly tapered in order that the pipe tightens as it goes, one cannot run a plumbing plug all the way to the pan and use a traditional washer -- copper or otherwise -- to seal. So, I am stuck with a drip.

I used Permatex w/teflon, a non-hardening thread sealer, but still I have a drip. Any ideas about a more effective, yet removable sealer? Any other ideas period??

Thanks.

Allen