Reply With QuoteOh yes, then it is totally useless
http://www.mwrench.com/Whitepapers/FanClutchtest.pdf
Major Contributor
Viscous Fan Coupling
Hi!
This viscous fan coupling, what is it for? I was told it adjusts the rotational speed of the fan based on temperature, right? The mechanic even stopped the fan with his finger and said mine is useless.
Super Moderator
2 Grand Master
That's a great document, Shogun.Originally Posted by shogun
Ralph Mendoza Jr. - Long Beach, CA
Major Contributor
Thanks Shogun
Green Beret Special Ops
With the mentality of sticking fingers in the vacinity of a spinning fan, a new mechanic is in order.
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
Big, Big Time Poster
haha i dare him to stick a finger in my fan!
3 Grand Master
Actually, I regularly stop the VC fan when it's not "running" with my hand. Not on M70s, but...
If your mechanic intimated that the fact that he could stop it with his hand indicated that it was bad, you probably want to find a new shop for the car.
The oil in the coupling activates only after it has reached a certain temperature. They're supposed to run for a few seconds after the engine is started, then rotate freely until the engine bay gets hot enough to activate the clutch again.
best, whit
2 Grand Master
I'm going to check to see how many fingers my mechanic has. LOL!!
Ralph Mendoza Jr. - Long Beach, CA
Big, Big Time Poster
not many if he's as gifted as the one up there.
Major Contributor
It was summer, and we had to drive to that shop, so the engine was rather hot.
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