Listers :
For many years, I've been hearing the story that "you have to have a
thermostat, or a restrictor, because otherwise the water flows through the
radiator too fast and doesn't get cooled".
For just as many years, it hasn't made sense to me. The faster the coolant
circulates, the closer it keeps the radiator fin temperature to the engine
temperature, which lets the radiator radiate more heat.
At last, I've found an explanation that makes sense ! Check out
http://www.stewartcomponents.com/techtip3.htm, especially the paragraph
that starts "Years ago". It basically says the problem is that the extra
flow through the radiator increases the pressure at the top of the
radiator, which causes the (low pressure for our LBCs) radiator cap to blow
coolant out the overflow, just like it was overheated !
Randall
59 TR3A "daily driver wanna be"
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