Can you look at this video of my fan clutch? - JeepForum.com

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post #1 of 22 Old 07-11-2010, 06:17 PM Thread Starter
Davids29
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Can you look at this video of my fan clutch?

Fan test on Flickr - Photo Sharing!

I'm trying to find out if my fan clutch is working right. Everyone talks about if it freewheels, but mine is pretty tight. This video was taken after the jeep sat all night, about 10 hours without running, so it was completely cool. Does it look too tight? Can someone else take a video of their fan clutch that they know is good and working correctly?

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post #2 of 22 Old 07-11-2010, 06:21 PM
Weeeee
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You need a new fan clutch.
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post #3 of 22 Old 07-11-2010, 06:28 PM
TeeJay00
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Yup mine does the same... What does that mean???
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post #4 of 22 Old 07-11-2010, 06:34 PM
Weeeee
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Does it sound really loud all the time like the fan is running on high?

It's a viscous clutch and changes speed based on temp. If it is always running loudly then you need a new fan clutch.
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post #5 of 22 Old 07-11-2010, 06:40 PM Thread Starter
Davids29
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Well, mine has sounded the same since I bought it. I've been trying to solve some bad mileage problems and looking at a lot of things and someone suggested that the fan clutch might be locked up and always robbing power from the motor.

Can someone post a video of a working fan clutch being spun when cold. Maybe someone can post one that has gone completely loose so that there will be something for people to look at in the future when diagnosing fan clutch issues.
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post #6 of 22 Old 07-11-2010, 07:06 PM
willydigger
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I burned up my fan clutch after trying to go in a pond that was a little too deep.

Start the jeep and let it run. Don't drive it, just let it sit. If the clutch is bad the temp will rise and overheat. Your fluid will boil over.

I managed to get my jeep home from the off-road park (about a 2 hour drive) with no problems. I thought everything was fine until I went to pick up a friend. I had to wait a few minutes for him to come out of his house and that's all it took to over heat.
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post #7 of 22 Old 07-11-2010, 07:08 PM Thread Starter
Davids29
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Mine is the opposite of that. Its too tight, it never disengages.
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post #8 of 22 Old 07-11-2010, 07:27 PM
TJdualsport
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Quote:
Originally Posted by Weeeee View Post
You need a new fan clutch.
based off that video?? its not supposed to free spin when its cold. its supposed to have a resistance. looks fine to me. next time after you drive it around, check to see how it spins when the engine is warm (motor off of course)
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post #9 of 22 Old 07-11-2010, 07:48 PM
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Quote:
Originally Posted by Weeeee View Post
You need a new fan clutch.
Why do you say that?
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post #10 of 22 Old 07-12-2010, 05:06 AM
Weeeee
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Quote:
Originally Posted by Dryseals View Post
Why do you say that?
I went and looked at mine as well and cold it looks like this one as well, I was wrong sorry about that.
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post #11 of 22 Old 07-12-2010, 05:15 AM
MisfitSeven
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your fan clutch is fine. try moving it after the motor has warmed up, motor not running of course. it should then be hard to turn. i think everyone is hearing you let go of the fan, thus making a ringing sound. that is not the fan clutch.

Mail crawling.
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post #12 of 22 Old 07-12-2010, 08:22 AM
Dryseals
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Quote:
Originally Posted by Weeeee View Post
I went and looked at mine as well and cold it looks like this one as well, I was wrong sorry about that.
We all make mistakes.
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post #13 of 22 Old 07-12-2010, 09:43 AM
TeeJay00
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Quote:
Originally Posted by Weeeee View Post
I went and looked at mine as well and cold it looks like this one as well, I was wrong sorry about that.
Maybe yours doesn't work either
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post #14 of 22 Old 07-12-2010, 10:13 AM Thread Starter
Davids29
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I was under the impression that it should turn between 1/2 and 2 revolutions. Is this not correct?
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post #15 of 22 Old 07-12-2010, 10:33 AM
Weeeee
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Quote:
Originally Posted by TeeJay00 View Post
Maybe yours doesn't work either

I actually replaced mine last year because it was seized up, it work's great now.
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