Video

I guess I have a seized fan clutch in my truck, sounds like a huge vacuum, "windy", I was gonna try to oil n shimmy the coil get it loose if possible make it last more but na , 23 years working Is enough, it's time to change it

very educative. Thank you

If you don't have a workshop and a press, do not even attempt doing it on your own. It's nowhere near as easy as shown in the video. I am 100% sure the clutch was disassembled and reassembled prior filming. It is literally impossible to take the thing apart without cutting off the bearings. Wish you didn't make the video, seriously.

Thank understood now

I knew that it had its own fluid that self contained but I never understood the principles in which it acts. Very simple system. No wonder fan clutches last for years before needed to be changed. Still going to convert my Tahoe to electric fans but now I understand how the mechanical clutch works. Thank you for this. Very informative.

Idk seems complicated, easier to just cough up the extra 700$ and replace whole thing

So do i turn it left to remove???? And why not build it with anti seize in the1st place.

What temp would the clutch engage on a gm truck?

3:15 how does the fluid get pumped back into the reservoir? I don't get it...I would have thought that the centrifugal forces are so high, that the fluid only comes back into the reservoir, when you switch off the engine?

Mate, this is one of the best educational videos I have seen. Well done, animations were amazing!

Excellent video. 👍

I have a 96 Tacoma with 300k miles and the engine fan runs all the time, even when it is 20 below zero.

What about the needle bearing that should've been serviced aswell

Just in process of change fan clutch on 2011 Dakota. Question does cold temp affect the clutch fluid? This morning the outside temp is -20C.

These guys don’t know there own product and don’t stand behind it. I bought one for my peterbilt 379 with cat motor. I drive local stop and go 70k pounds. The fan worked incredible. Always kept truck cool without second stage needing to come on even with a/c on. Then after 30k miles, the first stage stopped working all together. Barely spins at all. Now the second stage always engages to bring the temps down. I’d say it’s on 50 Percent of the time. Nothing wrong with my cooling system or a/c. Like I said the first stage no longer working. Kitmasters reaponse after calling all the time “not sure what would cause that, take fan clutch off and send back”. Yeah ok, shut my truck down for a couple weeks and lose money right? How about send me a new fan and I ship the old one back so you can evaluate. Guess I’ll have to switch to hornton 2 speed

So it’s like a thermostat activated locking torque converter. Crazy shit how much engineering goes into something as dumb as a fan.

This is absolutely an amazing explanation. All explained simply without unneeded details.

Do you need replace/add the fluid regularly?

Is you open Allen bolt in clock wise or counter clock wise

Nice! Having mostly worked on motorcycles and VWs I was wondering what that spring was for. I was told that the viscous fluid was temp sensitive, activating the drive by thickening to transfer the power (as viscous couplers work in some all wheel drive systems).

Do you also need to service the fan? Do you change the oil inside too?

Poor design...and even worse is the 1 piece shroud.....could be a 15 minute fix if they engineered it better....a 6 year old could have done a better job

Can i run a bolt thru and lok them up ? Like we did in the 70s and 80s

I used one Kit Masters Horton Fan clutch rebuild kits on my 3406e Cat from Southern Electric in Conley Georgia & that was a beautiful kit & saved me a nice chunk of change too🥰👍🏿 Shout out to Dale at J&J truck repair for telling to buy it there & then he installed it for me for a great price! All together buying the reman plus install still came in under the price of a new one that wasn't a Horton Clutch! I get all my starters & alternators from Southern Electric & that's not often because they rebuild them to last👍🏿

Anyone with an 05 Aviator. If your car roars and revs high all the time change your fan clutch because it’s stuck. Four Seasons makes a great one that will give you some extra mpg.

Can you stop Viscous fan's when the fan clutch is engaged or will you injure your hand?

Best explanation I've ever heard 👍 If I could thank you a million times i would

Hey!! Greetings from Colombia 🇨🇴 South America!! Nice video and l explanation !! Thanks

🎉 Thankx for sharing. I need one that I am sure of.😢

I don’t understand why such a thing is needed.

Do you have sales or CD for distrubution in Brazil?

Fantastico video. Thanks

Why even have a fan clutch? I doubt my 1970 RR has a fan clutch!!!

Mercedes diagnosis question. Visco fan clutch is attached to water pump pulley. When motor is shut off and hot, fan should still be engaged and difficult to turn because belt tension is holding water pump pulley. When motor is cold, fan clutch should free wheel with little resistance. Is this correct?

i like fan clutch u. s

greetings for you from Iraq

It’s a SKF bearing lol

Every single Toyota truck / body on frame SUV is fitted with these clutches, making that signature whoosh even in 2022.

Why does my kit have a blue and orange o ring but i only found use for the blue one

Muy buena explicación de ingeniería

Question how much silicone fuid do you need?

So kind of like a torque converter?

Can a visions fan clutch be partly engaged for example around 200F, then fully engage around 210F ???

Hey, may I know if too many silicone oil will damage it? My car have slow acceleration problem after refill the silicone oil

I really really wish I had seen this video before I spent $350 and installed a new kysor head a few weeks ago. At that time, I didn’t feel any play and it spun freely. Now it’s totally shot. I’ve got inner and outer race and no rollers on a bearing. Hopefully the new head isn’t trashed

Thanks so much for sharing this interview with Kate.

Great

Answer to the question, How does a viscous fan clutch work? They don't.

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No explanation of why this design is used, or what it's initial reason was for. Why did we change from the fixed blade fan ?