[DML] Overheating question

["Tom Tait" <TTait@xxxxxxxxxx>]

I recently had my otterstat shoot out and lost all my coolant and now
have one of two problems.

Either I need to do a better job bleeding the radiator or I may have
warped a head.  The car runs nicely for at least 30 minutes, then it
starts to heat up, finally spewing coolant out of the overflow which I
then replace and try to bleed again.

Each time it seems like all is well, then I go on a longer drive on a
hot day and it blows again.  How can I tell the difference between
trapped air and exhaust gas getting into the cooling system?

No loss of power, no obvious water contamination in the oil at the
dipstick, no oil in the coolant that I can tell.

I've had two friends with other cars blow head gaskets this month - so
I'm nervous - suggestions?

Tom





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