[DeTomaso] head drilling for air release

[JDeRyke at aol.com]

In a message dated 9/3/09 8:30:32 AM, asajay at asajay.com writes:

> All I'm trying to do at thispoint is establish positive coolant flow.  If 
> I take the thermostat out, I should -see- positive flow in the swirl 
> tank.  If I see the flow, then I know there are no restrictions and it supports 
> the idea of the thermostat being the culprit.  Once established, I can 
> then install a known good thermostat (after a boil test that is) and try again.
> 
Good idea to do some testing. For reasons known only to thermostat 
manufacturers, thermostats always fail CLOSED (except for one very special assembly 
that I've lost the name of) thus guaranteeing engine overheating instead of 
over-cooling. Good luck- J Deryke