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Hi Ed, one more possible
hypothesis... as soon as you start an internal combustion engine the
cooland is required to absorb the pressure pulses from the combustion
process. Without a vapor cusion to
dampen this energy you would have to see something in the guage, the frequency
would likely be higher then the response time of the guage so you would not
see it as a fluctuating pressure. I think that the pump could generate
some pressure, perhaps 4 psi or so, but I think 22 psi is a stretch,
the pressure would also have to vary with engine speed. I suppose the easy
way to test the pump theory is to remove the belt.
Cheers, Ian
Could be, Buly suggested the same thing, George.
My coolant pressure pump is after the radiators and before the water pump
inlet. So the coolant does have to get through two radiators before
my sensor senses the pressure.
Ed
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