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MG Midget and Sprite Technical - Kenlowe fan sensor

Does anybody know if the sensor, mounted in the radiator is a straightforward bi-metallic on/off switch or is it something more sophisticated?
Thanks,
Malc
M J Chapman

AFAIK if it is the variety with a copper line, the sensor is a thermocouple that controls the fan in a defined temperature range. The only ones I have ever seen have a temperature control dial to set the cut-in temperature.
dominic clancy

I'm with Dominic on this. He has described the exact setup on my car. Thermocouple and temp control dial to set the switching temp.
Greybeard

The later MGBs just used a switch. You might be able to use one of those, if it switches at the right temperature.
Dave O'Neill 2

Good selection here...

http://www.carbuildersolutions.com/uk/fan-switches

I use the "on at 87 off at 82" version.
The same place can also supply threaded tee pieces so you can insert the sensor into your water hose.

Use with a relay..
Andy Phillips (frankenfrog)

Thanks to everyone for their help - especially Andy - that switch looks just the job!
M J Chapman

I cut one in on the side of my rad and soldered it in with a blowtorch and plumbers solder went in a treat

mark 1500 on the road Preston Lancs

This thread was discussed between 12/07/2015 and 16/07/2015

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