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Looks like that horton solenoid valve can be run as normally open or normally closed, depending on which input port you choose for the air.

Do you have a part number for the solenoid valve you bought?

So if I understand this correctly I need: 1. A thermal switch that is Normally Open, circuit closes when temp reaches 200F so that it sends a signal to 2. A solenoid air valve with the valve portion Normally Closed that will then open when the solenoid coil is energized, allowing air to go to...

Well, the good news is that the clutch works. I fired the engine up and just ran shop air to the line going to the clutch and the cutch happily spun right up when I pressed the trigger on the air blower. The bad news is, the shutterstat appears to be stuck. I replaced that "filter" output...

You've driven your 5 ton 150,000 miles in TWO YEARS? Good grief. What do you use your truck for, if you don't mind me asking?

Pretty slick. How long have you been running with that? I might look into that at some point.

You mean replace the shutterstat with a new shutterstat or with some other doo-hickey?

Thanks, I appreciate the info. This was as far as I got taking it apart. At this point, I wasn't sure what to push, pull, or torque so I called it quits. I've seen in other threads here where people had them further taken apart but I don't know what magic incantation they used. Not sure...

So that outlet elbow is for sure not supposed to have anything inside it? I'm just double checking because I swear this looks like copper wire. And it looks exactly like the other guy's did when he pulled it off.

Pulled the fitting off. Yep, same wire looking things on the other side. So looks like it's probably some kind of final filter? Either way, I can't blow air through that elbow so it's definitely obstructing air. If it's copper corrosion, do you think soaking it in lemishine solution would...

So I took my shutterstat off and... yeah, the output elbow on it has what looks like the exact same clog as 1 Patriot of many's. Thing is, it looks like a bundle of copper wires. What am I looking at? Are those supposed to be there? Surely that is causing the problem, blocking air from...

Good point. Mine acts like it's ever so slightly trying to come on and then stops. Jiggles a little, then stops again. Could be air blockage? Will check, thanks.

Dumb question, but what did you use to lubricate it? I know some people have said WD40 but I'm leery of using that to lubricate anything since it evaporates relatively fast. I've got a little bottle of paintball gun oil... would that work?

Hah, that's a great idea. Will try that.

Ah thanks. I was hesitant to try gripping it with pliers or something like that but will give it a shot

My fan clutch won't come on, even when the engine gets above 210. Reading on here, I see where some people have taken the back of their fan clutch actuator off and lubricated it to good success. I'd like to try that but I'm not sure what tool to use. Looks like some kind of pin spanner tool...