Hmmm, well, somebody else down below recommended trying a reverse handed drill bit with a reversible drill. I was going to try that, but your method sounds preferable because the car is parked away from my place (an apertment) and I don't have a cordless drill. I do have four to five inches of space between the dipstick tube where I could see getting the device you seem to be describing in and hammering it in.

I dig the auto so far. Haven't had a chance to get it up to speed, but for a 39 year old vehical it seems to be working just fine. I'll bet it's never been serviced or rebuilt at all.

I have PB-Blaster as well, but I kind of thought it was equivalent to WD-40. I sprayed the WD in there and plugged the hole with some tissue to keep the stuff from evaporating away faster in open air. That's my theory at least. I'll spray some PB in there now and wait until I can track down the tool you describe. Maybe I'll even get lucky and my friendly race-enthousiast neighbor will even have the tool to borrow.