[V8] thermostats ad nauseum

[i.rautenberg at waratap.com]

Ed,

I think there are a few variables taking place in your engine that  
aren't taking place in your pot of (almost) boiling water:  Coolant.   
Acts as a lubricant for the water pump and the thermostat. Very  
important.  The other thing is that there is pushing pressure on the  
thermostat to assist it in opening due to the aforementioned pump.  At  
least those would be my guesses.  In any casse, I always try to use a  
Behr or other good quality thermostat like the Wahler.

Best of luck,

Ingo

Quoting Ed Kellock <ekellock at gmail.com>:

> I went and bought another new thermostat at lunch and went home and
> cooked it up with the other new one and it's even worse than that one.
>
> It's some off-brand German manufacturer called MotoRad. Has almost no
> markings on it and the temp marking is in F (192) and is way down in a tiny
> hole on one end of the central rod. POS.
>
> I called CarQuest and orderd a Wahler that I can pick up tomorrow. I hope it
> cooks up okay.
>
> Is this hot water thing a valid test? Would a new thermostat need super high
> heat at first to get it to do it's thing? Seems kludgey that it would but
> stranger things have been true...
>
> I drove the car to lunch to go get the new new t-stat etc. From work, it
> took about 3 miles, and climbing a moderate hill and sitting at another
> light until the temp gauge got up to near 100. Then it was pretty solid
> there, although for the last little bit before I got back to work it edged
> over 100 a little. I may be splitting hairs at this point, what with the
> differences in gauges, etc. If the new Wahler doesn't cook up okay, at least
> what I think is ok, I'm going to leave the old t-stat in there for the
> summer. I can always put one of the "hotter" ones in in the fall.
> It doesn't seem like this should be this much hassle.
>
> Ed
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