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Message
Tonight, while descending from 9500' I
kept the controller bypassed allowing the pump to flow at full speed. I found
that it cooled off so that the hot coolant out of the engine was below the
bottom scale of the gauge (<50C) and coolant press was 0psi. Then when I
entered the circuit and applied power, it ran rough until it warmed up a
bit.
Interesting. Hey Ed, Tracy, Bill (?), anyone else
without a thermostat- what sort of temps do you guys see when making a long low
power descent?
Also, where is your pressure sensor Todd? It must
be after the engine, and before the pump. I will probably try to put a
sensor somewhere downstream of the pump, so I can see that it's producing
flow/pressure.
I take my temps at the
adapter block measuring temps in and out. It would seem to me that the temp at
the rear sensor fitting would be a little cooler as the coolant has only gone
half way through the engine. However as you imply, it may have already seen the
hottest parts.
I agree that the
water exit at your adapter plate will normally be the hottest point, but that's
when water is flowing. My point was to put a sensor as close to the
hottest part of the water jacket, so you would see the temp rise
sooner if the water flow stops. For normal operation, a 95C switch might
(?) trigger too late in this rear sensor fitting, but you can get switches
that work at different
temps.
All great info
Todd. Thanks.
Rusty
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