I got bored this afternoon and suddenly flushing my Radiator became a good idea. Unfortunately the drain plug screw has been over-tightened.

My question is, if the thread of the screw is still in the radiator and
no coolant leaks out will it still be safe to drive cross country.
(The head of the screw and rubber washer/seal has broken off)

I've driven around the block a few times, but im chicken to go any futher.

Please help.

Seems I've been able to answer my own Qn.

http://www.fordmods.com/phpBB2/viewtopi ... h+radiator

Yea Happened to me a few weeks ago after the climate control mod...havent worries about it since...