Cullen,
I believe what you observed is consistent with my statement. The reason I
say this is because I found out that a couple of 1/16" restriction holes
pass enough water to keep my engine cool under most conditions. I was
astounded by this, and I believe I reported this to the List. My conclusion
is the thermostat us usually operating at barely open until your operating
temperature goes above the thermostats nominal set point. Then, the
difference between slightly open and wide open doesn't matter.
Bob
At 08:43 AM 6/14/99 -0700, Bennett Cullen-P21988 wrote:
>Bob,
> > reading about ten degrees too high. Most thermostats seem to control the
> > temperature at pretty close to the set point . . . provided, of course,
>the
> > cooling system is not a limitation.
>
>My observations and measurements tend to differ a little. I conducted an
>experiment on about 5 different thermostats (all at different "operating"
>points). This was done on the kitchen stove in a pan of water using a
>calibrated thermocouple to measure the stirred water temperature. What I
>found was that ALL of the units just started opening at the "rated operating
>point" and required an additional 15 degrees (F) to come to a fully open
>position. The physical position was somewhat linear between these
>temperatures. The "system" overall operating should be somewhere within this
>region (providing there is no other limitation).
>
>Cullen Bennett
>Tempe, Arizona USA
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