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Old 02-19-2007, 08:46 PM   #1
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Fan Clutch Problem

Checking over the car this morning after the flogging I gave it at the test track at the Victorian 4wd show I noticed a noise coming from the fan turned off the engine and felt around for a stick or something and notice the fan wobbled back & foward I dont recall it doing this in the past .I've never had any problem with fan clutches in the past so I have a couple of questions

1: How urgently do I need to fix it (ie is it lightly to cause other damage)

2: what sort of lifespan do these things have (replace with s/hand or new)

3: is it worth replacing it with an electric fan ?How do these handle mud water etc

4:what it all going to cost (minister for War & Finance hasn't quite forgiven me for impulse buying a 40l fridge on Sunday)

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Old 02-19-2007, 08:51 PM   #2
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If the fan wobbles, I'd replace the clutch fast. You don't want to do more damage. They are inexpensive and easy to change.

I have no experience with the electric fan...

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Old 02-19-2007, 09:22 PM   #3
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I'm wondering how would you wire an aftermarket electric fan? Is there a way to to tell the fan when to turn on and off besides manual?
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Old 02-19-2007, 09:45 PM   #4
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you can use a temp switch ie turns on @ 160deg
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Old 02-20-2007, 04:05 PM   #5
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Efans work awsome i have two.

Mine are on switches that i can turn on at will. but yea they make thermo switches that do the job




two 2300 cfm fans off ebay. one pulls one pushes. works great and gave me some more power too. sadly it didnt effect my mpg. i would replace your clutch fan immedialty if it wobbles.
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Old 02-20-2007, 04:27 PM   #6
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Go electric. Cost a little more but power increase is nice (I have a 4 banger, need every horse I can get).

Most fans have an adjustable or fixed thermo switch that turns on the fan when a certian temp is reached, then off when it drops to a preset level. You can also wire in a switch to manually turn on the fan if you so desire.

As for your question about mud and water, the big advantage of electric is that you can turn them off during a water crossing. No broken fan blades.

Just my .02..........
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Old 02-22-2007, 12:26 PM   #7
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I rang the jeep dealership and they wanted $325 fortunately I found an aftermarket one for $125
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Old 02-22-2007, 04:09 PM   #8
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Go electric. Cost a little more but power increase is nice (I have a 4 banger, need every horse I can get).

Just my .02..........

Realistically, how much power gain is it ? Was it immediately noticeable ? Is it just highway power, or is it something you would notice on the trail also ?
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Old 02-22-2007, 04:54 PM   #9
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i have a noticable difference in power, i can now go up to big bear without downshifting. but its not gonna win me any races
i got my fans off ebay for 40 bucks a pop
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Old 02-24-2007, 01:05 AM   #10
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Quote:
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Realistically, how much power gain is it ? Was it immediately noticeable ? Is it just highway power, or is it something you would notice on the trail also ?
MOG, it will be something that you notice at all times. By removing the stock fan, that's one less thing the engine needs to turn. Plus with the electric puller/pusher fans it brings more air flow thru your radiator and keeps everything a bit cooler which helps also.

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