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Re: RedLine Water Wetter Question
[...]
I talked this over with the smartest car-guys I know, one of whom
wondered whether -- between the RedLine and the stuck fan -- I was
cooling the water in the radiator TOO much. "Of course, that'd only
work if you had a reverse-flow system, where the thermostat is connected
to the bottom of the radiator." What kind of nincompoop would design a
system like that? I asked.
Ah. The Geniuses (see list of TLAs) at Audi, obviously. Sure enough,
[...]
Ah yes, a subject of which I have incessantly bi..., er, complained.
Using the thermostat to regulate the water temperature of the radiator
rather than the engine (and in particular, the cylinder head!) is in
my view a StupidThing. But I suppose it does mean you can get away
with not having a "drain" at the bottom of the engine, you can just
remove the thermostat (now isn't that so much easier...).
Now, in theory, when the thermostat is closed (not drawing radiator
coolant), it is recirculating hot engine coolant . . . so it should
be drawing HOT cylinder-head coolant down to the thermostat . . .
but somehow the practice seems to fall short of the theory.
Oh Well.
-RDH