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Ford Contour (about 1999 or 2000) also had the
"pressurized expansion tank"/"pressurized header tank", with NO cap on radiator
- you filled by removing the pressure cap on the "expansion/reservoir/header
tank" and it drained out the bottom to a T in the line from bottom of radiator
to the water pump, and filled the radiator and engine block from bottom up,
purging (most? air. That is the way I'm going.
The air on top of coolant in the
"pressurized see-thru tank was provided plenty of "cup of air" on
top.
David
----- Original Message -----
Sent: Monday, June 27, 2005 12:27 AM
Subject: [FlyRotary] Re: Coolant Leak
I'm sorry Georges, I don't
understand your statement.
All auto cooling sys I'm familiar
with have rad cap on top of radiator. They are designed to have no air in the
cooling system. Shortly after you start up the car, coolant flows from
cap 14psi valve to overflow bottle. This pressure increase is entirely due
to coolant expansion due to heat. When you shut car off, the pressure drop in
the radiator draws in coolant from cap 1 psi valve connected to
overflow bottle back into the radiator. Thus the radiator is always full
to top.
Al
W.
Mercedes, Volkswagon,
Volvo (to name a few) have/had radiators with no cap, connected to an expansion
tank that you fill about half way. The expansion tank – higher than the
top of the rad - has the 13-15 psi cap.
FWIW;
Al
G.
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