Replacing mech fan w/ electric

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Jun 25, 2010 | 09:41 PM

#46

1991Jeep_Man

CF Veteran

Joined: Oct 2009

Posts: 2,867

Likes: 16

From: Fauquier County, Virginia

Year: 1991

Model: Cherokee

Engine: I-6 4.0 HO

btw does anyone know the cfm rating of the stock electric fan in pre 97 and 97+ XJ's?

Jun 25, 2010 | 09:47 PM

#47

posjeepxj

CF Veteran

Joined: Jan 2010

Posts: 2,059

Likes: 1

From: Indianola IOWA

Year: 1992

Model: Cherokee

Engine: 4.0

like 1300-1500 for the 96 and down and 1700-2000 for the newer style. Hard saying because alot of stock fans were labels as alot more that what the where

Jun 25, 2010 | 10:50 PM

#48

cherokeeaddiction23

CF Veteran

Joined: Sep 2009

Posts: 1,092

Likes: 0

From: Chesapeake, Virginia

Year: 2002

Model: Grand Cherokee

Engine: 4.7

can you just get another stock cooling fan and bolt it right into place of the mahc fan shroud, they look like they are the same size, and just hook one up to a switch

Jun 25, 2010 | 11:36 PM

#49

spahr69

Senior Member

Joined: Jun 2009

Posts: 562

Likes: 0

From: pennsylvania

Year: 1995

Model: Cherokee

Engine: 4.0 liter

Quote:

Originally Posted by dyte2004

There nuts dude the pulley might move out of line a bit but will be ok when you put the nuts back be aware of cheapo fans they are not up to much 2100cfm is alot of air for 30 buck sounds to good to be true i fitted to smaller 12inch fans they put 1500cfm each wired through a thermo switch i dont have to worry about them keeps the motor cool and at a far more steady temp they only need to come on in slow moving traffic so most of the time they are off this is how you save on fuel compared to the clutch fan that is always turning if your electric fans are allways on you will see a bit of fuel saving but it still using the motor to power them i would always recomend a thermo switch plus you dont want to forget you left the dash switch off and overheat

i want this set up sooo bad now. is it as easy as 1 2 3? by both fans? a thermal switch and have it go into the old e fan harnesS?

Jul 17, 2010 | 10:14 PM

#50

n_csmith

Seasoned Member

Joined: Mar 2010

Posts: 470

Likes: 0

From: Harker Heights, Texas

Year: 2002

Model: Grand Cherokee (WJ)

Engine: 4.7L

well i have a second factory fan so after reading this it is happening it will be going in soon.

Jul 18, 2010 | 11:12 AM

#51

lostboy

Thread Starter

Newbie

Joined: Jun 2010

Posts: 8

Likes: 0

Model: Cherokee

update: OP re-installs fan clutch

So I yanked the mech. fan/clutch assembly and installed what was reported by the ebay vendor to be a 2100cfm efan...gotta say I loved the zippier response, faster spin-up and the quieter ride but in this recent 100-degree heat as soon as I started modest hill climbs at speed the temp gauge started creeping up past 210 and within a mile the aux efan would kick in and the little jeepster would struggle to keep cool...and thats with a newish 2-row rad, new tstat, etc...reinstalled the mech. fan w/ a new heavy duty clutch and the sucker is dead on 210 regardless of what stress I put the little girl through....and btw I was locked and loaded, ready to pull the hammer on a Triple Threat assembly but those &(*%^&(*$ holes would never respond to my simple requests for a little info...shot them 2-emails and it seems that they are an FM-vapor ebiz with no legit support or even a phone number...grrrrrr....

Aug 27, 2013 | 02:14 AM

#52

Big willy

Newbie

Joined: May 2013

Posts: 10

Likes: 0

From: Klamath Falls Oregon

Year: 1989

Model: Cherokee

Engine: 4.0

So does anyone know what size those bolts are?? I did a dual electric swap a couple months ago but I left the bolts the way they are without shortening them (very dumb) and they ripped out the wiring on the back of my fan just recently. So I will be making a trip to home depot to get new bolts. How hard are these things to take out??? I don't have a jigsaw also. I'm just a 20yr old kid living in K falls trying to maintain an XJ