Thermal Valve for the Fan Clutch on the 6CTA Serviceable??

[70deuce]

I have a M936A2 and I don't think the thermal valve mounted on the upper radiator hose that actuates the fan clutch is working correctly. Sometimes the water temp gets up to just over 200 degrees with no fan lockup/actuation. Is the thermal valve serviceable?? Is their a good source for replacement valves??

 

[steelandcanvas]

Did you check the switch with an Ohmeter to be sure the switch closed when the engine got up to temp?

 

[70deuce]

Mr SteelandCanvas sometimes JR, I believe the valve is completely mechanical on the Cummins 6CTA. Heat from the coolant opens the valve allowing air to travel to the fan clutch. No wires are attached to this thermal valve. Just has a pressure line and a feed line to the clutch.

 

[porkysplace]

This thread may help you ;
[h=3]Fan not running on my M923A2[/h]

 

[Floridianson]

Post 50 in this thread has pics. I have the feeling if your clutch is rattling then it's time to rebuild the hub. Expect to pay 300 or more for the kit.
http://www.steelsoldiers.com/showth...-Fan-Clutch-for-M923a1&highlight=shutter+stat

 

[steelandcanvas]

Mr SteelandCanvas sometimes JR, I believe the valve is completely mechanical on the Cummins 6CTA. Heat from the coolant opens the valve allowing air to travel to the fan clutch. No wires are attached to this thermal valve. Just has a pressure line and a feed line to the clutch.

My bad, I thought it was controlled electrically.