??? Fan Clutch ??? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 03-25-2001, 12:26 AM
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??? Fan Clutch ???

Anyone know what type of fan clutch a 79 Scout II with the 304 V8 has? I've never heard of such a thing. How do you replace it? Where is the thing located (relative to the fan, obviously, but more specific please!). Thanks for your help!!



1979 Scout II
304 V8
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post #2 of (permalink) Old 03-25-2001, 09:23 AM
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Re: ??? Fan Clutch ???

A fan clutch is a fluid coupling. It is mounted in between the water pump and the fan. The idea is to allow the fan to slip a little, thus freeing up a little more power for the engine. Not all Scouts have them.

Kent

If your not living on the edge, you're taking up too much space.
post #3 of (permalink) Old 03-27-2001, 11:46 PM
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Re: ??? Fan Clutch ???

How much more power are we talking here. I have a 304 that I just rebuilt and am getting ready to drop in, I also have a 345 that has a clutch fan, could I put that on my 304 with no problems. Are they reliable?

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post #4 of (permalink) Old 03-29-2001, 04:12 AM
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Re: ??? Fan Clutch ???

The idea of a fan clutch was also to cut noise. You don't lose that much power. At 60 mph you don't really need a fan. But in stop and go driving and off road, you want all you can get. I would go with the standard fan or even one with more blades. That least you know it will not fail when you need the most.

Riolobo

post #5 of (permalink) Old 03-30-2001, 02:33 PM
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Re: ??? Fan Clutch ???

I agree with Riolobo's post 100%. The way these things work is that as they heat up they allow the fan clutch to slip a little, thus less fan rpm (noise reduction) and a little (less than .5 hp would be my guess). I also don't run the clutch fans in my rigs. Most off roading is slow going you need all the cooling you can get to keep that 700 pounds of steel cool.

If your not living on the edge, you're taking up too much space.
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