Clutch fan test ??
Thread Starter
Pro
Joined: May 2002
Posts: 726
Likes: 0
From: Petaluma CA
Clutch fan test ??
Please let me know how to test a fan clutch...I have one now that spins for about ten seconds after engine is shut off and I understand that means it is not good..? If I go to junk yard, engines will not be running...is there a way to test them by hand? thanks
Melting Slicks
Joined: Mar 2002
Posts: 2,313
Likes: 0
From: The cure for the blues is eight cylinders roaring
Re: Clutch fan test ?? (Stevo)
I cant think of a test you can run on an nonrunning engine accept to make sure fan does not wobble on the shaft and fan turns somewhat freely.
Instructor
Joined: Jul 2001
Posts: 168
Likes: 4
From: central Washington state
Re: Clutch fan test ?? (Stevo)
Stevo;
The only reliable test of a fan clutch is the method you describe. Besides that, you'll be very lucky indeed to find a fan clutch worth having in a wrecking yard. It's one of those parts that should be replaced with a new unit. Even if the yard you get the used clutch from lets you get another if the one you get is bad, you still get to go through the replacement process again. And again. And again. IMO, you're wasting your time with anything but a new unit.
The only reliable test of a fan clutch is the method you describe. Besides that, you'll be very lucky indeed to find a fan clutch worth having in a wrecking yard. It's one of those parts that should be replaced with a new unit. Even if the yard you get the used clutch from lets you get another if the one you get is bad, you still get to go through the replacement process again. And again. And again. IMO, you're wasting your time with anything but a new unit.
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Re: Clutch fan test ?? (SIGNGUY)
I thought that when the car is cold the fan should be harder to turn. Once the car is up to temperature the clutch/fluid should allow the fan to turn easier.
Am I all wet here?
Am I all wet here?
Drifting
Joined: Mar 2001
Posts: 1,411
Likes: 2
From: St. Louis, Missouri
Re: Clutch fan test ?? (Stevo)
One rule of thumb (finger actually) that I read once.....
Spin the fan with one finger (make sure the engine is off :rolleyes:). The fan should NOT spin more than two revolutions. Mine turns only about once.
I agree, 10 seconds after shutting down is WAY too long.
Spin the fan with one finger (make sure the engine is off :rolleyes:). The fan should NOT spin more than two revolutions. Mine turns only about once.
I agree, 10 seconds after shutting down is WAY too long.
Pro
Joined: Dec 2000
Posts: 560
Likes: 0
From: Camino CA
Re: Clutch fan test ?? (Eddie 96)
You have that backwards, when the clutch gets hot it locks up, and when it's cold the clutch is loose. So if you turn the car off before it gets hot your fan will spin for a while. If you turn it off after it gets hot the fan should stop almost right away.
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