I have done this...last ditch effort...ran the engine to warm, iced
the allen wrench/plug, (it was a "socket" allen wrench) twisted with a
"T" handle to equalize torque...

It came out...

Heated the plug with a torch, the J-B let go, allen "socket"
salvaged...

Dave


On Tue, 7 Nov 2006 09:12:37 -0600, "pbc76049"
wrote:

I had a real tough plug to pull once. I JB welded the allen wrench into the
socket
and it cane out with little fuss after massaging the case with a heat gun to
250f
measured with my trusty IR temp gage.........