Termo Switch

[2duer]

Does anyone know where I can buy a termo schwitch to build into the lower part of my radiator. The store must be willing to send it to Denmark.

[SantaClaw]

Biltema Danmark* ?

It needs too make good contact with the radiator...

Use some sand paper to remove some of the black paint on a flat even surface near the bottom hose (return), exposing the bear metal of the radiator, then apply a thin layer of epoxy, OR solder the switch onto the radiator, wrap a lot of electrical tape around the sensor itself to insulate against the air around the sensor, after the epoxy has hardened, or you're done soldering, connect it to the fan & battery. Remember to roughen the surface of the sensor with course sand paper before soldering\gluing the sensor to the radiator.

Works fine, just take one connector to a good ground source, and the other to the fan, and then take the second one on the fan right to the + pole on the battery via a 30 amp fuse.

Remember to use the right polarity on the fan, so that it sucks\blows depending on what side of the radiator it's mounted.

[2duer]

Thanks for the advice. I will try Biltema

[West Coast GT]

Last year I installed a thermo-switched relay to control the new electric radiator fan.

Summit Racing: telephone 800-230-3030 or on-line.
Catalog Description: #890015 Relay, on 185 degree, off 175 deg.
Cost US Dollars: $45.95

This relay / thermo switch allows for a manual switch to supplement the automatic thermo switch.

To install the thermo switch in the lower radiator tank, I soldered a female threaded fitting to the radiator. Then center-punched, and drilled a pilot hole through the brass tank. Drilled it to fit the diameter of the probe, and threaded the switch into place.

Last step was to provide a good ground between the radiator and car frame.

Hope this helps.