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Old 06-16-2014, 12:35 PM   #1
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Electric fan vs Fan Clutch?

Hey peoples

Trying to vette these aftermarket electric fans vs the OEM fan clutch for cooling the radiator. I got a 4.0 99 manual in good ole Georgia where it's hot as hell and air heavy as molasses.

My fan blade got bent and so doesn't spin true anymore especially since the other night I hit a dip in the city and something caused the engine to lean forward and cut a whole in the radiator. Of course I gotta replace radiator now but I changed the fan clutch for the radiator and now the blades need changing.

Both cost about 125-130$ - one for the fan and wiring set and the fan blades by themselves for 120 ish from dealer. I know it's a critical part from a hard lesson learned this past winter. But I want all my integral components rock solid so I can start doing my mods now that I finally got a Full-time job after school.

-Z

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Old 06-16-2014, 12:52 PM   #2
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sounds like the cause of your problems is toasted motor mounts and/or trans mount.

Go with the OEM type mechanical fan and clutch. Get a 1 or 2 row radiator, with tubes that are 1" or larger.

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Old 06-16-2014, 01:24 PM   #3
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sounds like the cause of your problems is toasted motor mounts and/or trans mount. Go with the OEM type mechanical fan and clutch. Get a 1 or 2 row radiator, with tubes that are 1" or larger.
I swapped the engine from a Cherokee same year and size. Motor mounts are new but tranny mount maybe somethin to look at. Coworker is a 4x4 buddy he said to make sure everything is tight either from front to back or back to front.

What do you mean by "1 or 2" row radiator?
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Old 06-16-2014, 01:33 PM   #4
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I swapped the engine from a Cherokee same year and size. Motor mounts are new but tranny mount maybe somethin to look at. Coworker is a 4x4 buddy he said to make sure everything is tight either from front to back or back to front.

What do you mean by "1 or 2" row radiator?
There's a myth that more "rows" of cooling tubes in the radiator makes it cool better....in fact the opposite is true. Less, larger rows cool more effectively. Of course if you quadruple the amount of air flowing through the radiator then the multi row may do as well or better...but as a rule less is more for Jeeps (and quite a few other automobiles). It gets deeper the more indepth you go into this topic. Just remember, "less rows is more cool"

Triple check your Mounts/bolts. The engine shouldn't be allowed to move enough to damage a Rad.
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Old 06-16-2014, 02:19 PM   #5
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I was reading you could put a ford 9 blade fan direct fit for more air flow. Although in my opinion some things should stay stock.
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Old 06-16-2014, 02:37 PM   #6
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There's a myth that more "rows" of cooling tubes in the radiator makes it cool better....in fact the opposite is true. Less, larger rows cool more effectively. Of course if you quadruple the amount of air flowing through the radiator then the multi row may do as well or better...but as a rule less is more for Jeeps (and quite a few other automobiles). It gets deeper the more indepth you go into this topic. Just remember, "less rows is more cool" Triple check your Mounts/bolts. The engine shouldn't be allowed to move enough to damage a Rad.
Ohhh I get what you mean now as far as the row. I think I ended up gettin my rad from autozone they got some lifetime warranty on it, any time this thing Effs up I swap it no questions asked. Not bad and does the job but I'll def make a mental note of this for future.

10-4 on mounts check
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Old 06-16-2014, 02:42 PM   #7
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I was reading you could put a ford 9 blade fan direct fit for more air flow. Although in my opinion some things should stay stock.
Hmm I'm afraid it would get tricky I get some sort of cocktail of parts under the hood lol. I talked with napa and they got a fan clutch with I think 6 blades but it sits further back on the water pump than the original. But they're ordering it from UTah which makes me wonder if they're gettin it from Mopar?
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Old 07-20-2014, 07:04 PM   #8
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I was reading you could put a ford 9 blade fan direct fit for more air flow. Although in my opinion some things should stay stock.

I've done the change on mine. It's a fan blade and clutch from a 1993 Explorer. It moves TONS of air.

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