tms customer service-stallion

[riverrat69]

thermal fan switch

the fan switch-located on water line in front of right rear tire-is not a Ford part -instead it is a universal switch. it is a ground switch.if on the road & switch fail you can remove the wire from switch & ground it & the fan will run-continously--at least get you home. for the mechanically inclined--you can install an on/off switch attached to ground & turn fan on in case switch fails.thank you

 

[pmar6004]

Re: thermal fan switch

the fan switch-located on water line in front of right rear tire-is not a Ford part -instead it is a universal switch. it is a ground switch.if on the road & switch fail you can remove the wire from switch & ground it & the fan will run-continously--at least get you home. for the mechanically inclined--you can install an on/off switch attached to ground & turn fan on in case switch fails.thank you

Riverrat69, good informative post. I had this thermal switch fail while attending our Rally In The Valley V. My Stallion overheated when the fan failed to start, due to the thermal switch failure to make ground, thus causing an open fan circuit. Thanks to Ted (aka Gorilla) and his knowledge of the Stallion's electrical circuits, he was able bypass the failed thermal switch by connecting the fan through my Stallion's running lights to get power. Whenever my Stallion began to overheat, by observing the temperature gauge, I would turn on my running lights, temporarily provide power to the fan motor, until my Stallions temperature dropped to normal again. This cycling on and off with my light switch enabled me to get to my next destination and ultimately get the thermal switch replaced (Blackburn's Trikes - Medina, OH). Since then, this thermal switch failed again.

After speaking with Richard at TMS, to discuss my problem and to order another thermal switch (had 2 days remaining on my warranty), Richard said that the premature failure was likely the result of over tightening the switch when it was intstalled. Richard did not say what the recommended torque was, but I took it as just tightening the switch snug so that it doesn't leak coolant. Be sure to use teflon sealing tape or thread sealant on the threads of the switch, unless, of course, the switch already comes that way. To my fellow Stallion owners, you don't want to be caught in the middle of nowhere with an overheating problem. I would highly recommend to you install a bypass circuit to ground that you can control with an on/off switch, should you ever be caught with a failed thermal switch. Trust me, it's not a fun experience, particularly when you have no cell phone signal, its beginning to get dark and it starts to rain. :AGGHH:


Daydreamer

 

[riverrat69]

thanks pm6004-in reference to using teflon tape on the switch-most of the tech articles advise against,"can cause resistence change that may effect the operation of the switch" ?? i enstalled a water temp gauge& a toggle switch in case it happens again.am considering installing flexible exhaust pipe from the" decrative vent" by step pad to radiator/with damper to close if not needed(driving in snow) thanks