Hmmmmm- - - - -that's interesting. I torqued the head 3 or 4 times while doing the water glass treatment to temporarily seal the leaky head gasket. Maybe it was in the process of deteriorating due to old age?
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!