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Temperature Switch with a 3/8" NPT thread?
Does anyone know of a Temperature Switch with a 3/8" NPT thread that can be used to control the fan?
There are water outlets (thermostat housing) available for the 302 that have a 3/8" NPT port already in them. A while back someone suggested a Wells TU46 Temp Switch but it's 1/2" NPT and I was just hoping there might be a 3/8" version available. I know I could probably get the stock outlet drilled and tapped for the TU46 but a 1/2" NPT has threads almost 3/4" in diameter and that's not going to leave much metal to thread. It also extends pretty far into the outlet and may cause interference with the thermostat. Any suggestions would be appreciated. Thanks |
Lawrence:
If you can go to a NAPA or other well stocked full line auto parts house that has catalogues, you can find pictures of the various switches and the sizes and tempratures at which they open and close. It is usually in the same catalog as the sending units, brake light switches etc. Take your time. I assume you are looking for an electric fan switch, be sure and run it through a relay. Rick |
I am certain autometer makes one.
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Try Vintage Air http://www.vintageair.com/catalog.asp
Page 72, 192 degree on Also S-W sells one, #83304, 200 degree on The Standard catalog at your local parts house has pages of specs sheets in the back, thread size, temp range and terminals. I'm not sure that the intake manifold, just behind the thermostat is the best place to put the switch. Kind of at odds with what the thermostat does. Lower part of the radiator or the outlet tube might be better. |
These guys also have a 3/8 swt http://www.hotronicsproducts.com/cooling.htm
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Painless has a fan kit with all of the necessary parts.
Uses a 30 Amp circuit breaker instead of a 30 Amp fuse. Works great! Try Summit. |
Thanks to everyone for your input.
I ought to be able to find what I'm looking for in what you've given me. Since I've already got all of the wiring in place something like the Stewart Warner will probably be my best bet. Thanks again for your help. |
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