How can I know if..................

....my fun clutch is working properly?

HI...I ´ve used the search tool but didnt found the answer so I will thank you ant help.

TIA

Regards

I'm not making fun of you.....but man...I WANT a fun clutch!

I can tell my fan clutch is working in the morning when I first start driving it. For the first 1-2 minutes the fan is much much more audible as the fan clutch is working. Once the Jeep reaches a certain temp the noise diminishes as I assume the fan clutch is automatically adjusting to the running engine. I'm no expert, but this is how I can tell its working....along with no overheating conditions. I've heard that a faulty fan clutch will allow your temps to inch up at a redlight.

Ahahaah.....sorry, always the same mistake fun vs fan
No different sound from my fan that I can note

Thanks

Hi Rodrigo.

The fan clutch will engage for a short time when the engine has sat for a long time, like overnight, because the silicone fluid leaks from the reservoir. Once the engine is started the clutch will engage until the fluid returns to the reservoir.

The fan clutch usually engages when the air temperature passing through the radiator and contacting the bi-metal spring on the front of the fan clutch reaches 170 degrees (F), then the bi-metal spring starts opening the valve to the silicone fluid reservoir.

Best check is to fully warm up the engine and then shut it off hot. Take the fan by one blade and try and spin it. There should be very little spin. When engaged a standard fan clutch spins at 60-70 percent of the shaft speed, so it is never fully locked, but it should be very stiff to turn.

BTW, my fun clutch still works pretty good, just ask my grandkids! LOL!