I come to the list with a problem and hopefully a solution.
The last few times I have changed the oil, when I remove the oil drain plug I get the plug left in a Helicoil.  In other words the helicoil or time sert unscrews with the drain plug.  I managed to get a plastic type washer over the helicoil thing and have put that back in.  The drain plug is so tight in the helicoil that I can't separate the two.
The helicoil with the drain plug and washer can be screwed back in, but there are always a few drops of oil on my driveway after a drive.
I'm sure it is just a matter of time before the helicoil will strip the thread in the block and that's not a good thing!
What is the best way to proceed to get a permanent solution?

Ed Wiebe
1990 Westfalia