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Old 12-05-2008, 06:06 PM   #8 (permalink)
aerohead
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bi-metal

Quote:
Originally Posted by orange4boy View Post
I also had a coolant loss recently. I'm going to build this autospeed temperature switch soon and hook up my fan to it. I'm running a partial grille block too.

How about this for wacky:

My temp gauge goes up to a certain point then starts going down when it is getting hot. I have a separate new oil temp probe so I know which way things are trending. This is probably age related and perhaps a Toyota speciality. I know in kilns the bi-metal temperature probes change over time so you have to test them every once in a while.

Good idea, this alert.
I've seen some FLUKE digital temp meters relatively cheap at pawn shops lately.'Thought I might pot the thermocouple near original sending unit for a "second source" of data.---------- Also,a rotary switch would allow multiple feeds from additional thermocouples at oilpan,trans,differential,etc.------------- Sounds as if the original gauge setups on many cars are of dubious value.
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