when changing to an electric radiator fan,,what are folks using for an on-off temp switch for the fan?
found this at summit http://www.summitracing.com/parts/PRM-1 ... mage=large, looks like this mounts in a cup plug,, if so may not fit a slant, any suggestions?

thanks

I use the adjustable one on my truck........

Adjustable_Temp_Switch

Also wire it to drive a relay, not the direct load of the fan.

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

On your truck, mine is a 83 D-150,, where did you place the sensing bulb,
in the coolant in the radiator? or is this an external mount?
If in the radiator, did you braze in a fitting to receive the bulb?

for the fan / relay combo,, I got a fan and power control module from a 94 Caravan, with that I'll have separate relays for high / low speed fan, AC compressor relay interface...

thanks

Looks like the probe must slip inside the upper radiator hose, is my thought correct?
If so any problem getting it to seal?

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66 Valiant, 225.
84 Van, 225.
71 Maxi-Van, 318
60 Valiant wagon, 225
87 Maxi-Van, 318 4spd

The probe is external. It's next to the upper tank where the hose enters.

With an adjustable control, it doesn't have to be in the water as you can compensate for the slightly lower temp the probe sees...............

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Same switch I used. Works great.

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11.02 @ 120.56
http://www.youtube.com/watch?v=EAxRmoDgsdY
Chassis dyno
http://www.youtube.com/watch?v=wd6hFGzLJMc

Which one,

Mine or DadTruck's ?

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

so,, how do you affix the temp probe to the exterior of the radiator,,

epoxy??

thanks

Yours.

The tension from the fins holds the probe in place. Mine has been in for 2 years now.

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11.02 @ 120.56
http://www.youtube.com/watch?v=EAxRmoDgsdY
Chassis dyno
http://www.youtube.com/watch?v=wd6hFGzLJMc

I used the rubber backed tube clamps

sort of like these: http://www.imperialinc.com/grp137.shtml


Clamps around the body and holds it in place.

Attach to angle bracket, fan shroud, whatever works for you.........

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

well I got more than a few workable ideas out of this post,, thanks to all, this is great forum.

I use the one emsvitil shows. I just zip tied mine to the rad core.

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