TEMPERATURE SENSOR OR GAUGE ?

[DLTTrekkers]

none needed

 

[Bob Rooks]

Well, I figured out my gauge is shot, The coil inside is broken & the tiny wire is uncoiled
(Wonder how that happened)
Bob Rooks,
My neighbor gave me a new SunPro 12v Gauge that is mechanical & the sensor fits in block ok,
Not quite as long as original.
No electrics needed except light if wanted
The original gauge had 2 red wires for 12v & 1 orange wire for the sensor
Since this sensor has a spring encased tube to the gauge , no wiring is required is it ?
David

It has a capillary tube connected to a bulb that is immersed in the coolant. The bulb and tube are filled with glycerin and it expands and contracts proportionally to the coolant temperature. The only electrical connection required is for the lamp. The spring protects the capillary tube.

 

[KoonHunter51]

Thank you guys very much,
I will put it in, it even came with a mount for the larger hole
Now, If I can just get my big hands & arms in there to isolate those wires
David

 

[KoonHunter51]

OK,
Installed mechanical SunPro gauge & sensor
Let engine run for 20 minutes at medium rpm, needle never moved (100 degees)
Warm engine, not hot, removed radiator cap with very little coolant loss
Thermostat..?
David

 

[Bob Rooks]

Thermostat is stuck open or you don't have the doughnut seal on top of it.
See Tommy's post #3.

 

[KoonHunter51]

I put a piece of radiator hose on thermostat and got warmer, gauge reads 180
BUT, Sun Pro gauge must be interior only as a little rain caused condensation & glass fogged up

 

[Bob Rooks]

I put a piece of radiator hose on thermostat and got warmer, gauge reads 180
BUT, Sun Pro gauge must be interior only as a little rain caused condensation & glass fogged up

Yup. They aren't Stewart Warner or Murphy.