another cheap electric fan build!

[71Rat]

PRG machine: that is what i was getting at, a mechanical and electrical combination. i dont know if both will fit but if they do thats what "I" would do for what you describe you use your truck for. i drove around for 3 days with my electric fan not hooked up and my mechanical fan still working and on my temp gauge it didnt even show a difference with the electric fan not even moving.

71jimmy: no problem i hope it works out as well for everyone else as it has for me

[shopking72]

Excellent write up!

I have an electric fan on mine right now, but it doesnt move enough air, I was hauling some fence materials yesterday and my temp was over 200, too hot for my new motor.

What year of Jeep is the fans off of?

Thanks

[71Rat]

shopking72: the recall fan was for 2000 (WJ's) grand cherokee's and 2002 (wj's) grand cherokee's I dont know all of the years that had these fans but if you want here is the P/N: CBG4F250

[clay68c10]

Looks like a nice cheap mod. I used the Lincoln MK8 fan and it cools the 454 pretty well, this Jeep fan looks like the same blade size. Just curious, anyone running one of these on a BBC yet?

[ABLAZN]

Originally Posted by clay68c10

Looks like a nice cheap mod. I used the Lincoln MK8 fan and it cools the 454 pretty well, this Jeep fan looks like the same blade size. Just curious, anyone running one of these on a BBC yet?

For those who are using the Lincoln fan, how did you wire in the two speed motor. I am looking into this option as well. I do not have a shroud and this option would kill two bird with one stone.

[BCOWANWHEELS]

I JUST FITTED MY NEW JEEP FAN IN MY SCHROUD. wow it fits perfect..... anybody need the specs where to make the notch in the botton. it will save you a lot of time and aggravation on where to make it " just right " pm me if i can help with specs. and photos.
thanks for the great tip my 250 I 6 needed this bad especially in the winter when no fan is needed. i,am real anxious to do a fuel milage run to compare. bet it get better mpg.........
bob

[70c10]

Originally Posted by BCOWANWHEELS

I JUST FITTED MY NEW JEEP FAN IN MY SCHROUD. wow it fits perfect..... anybody need the specs where to make the notch in the botton. it will save you a lot of time and aggravation on where to make it " just right " pm me if i can help with specs. and photos.
thanks for the great tip my 250 I 6 needed this bad especially in the winter when no fan is needed. i,am real anxious to do a fuel milage run to compare. bet it get better mpg.........
bob

Could you post the pics and specs in this thread so when Krue moves the post to FAQ everything stays together?. Just curious, did you guys feel any power increase at all???. Thanks

[DennyB]

Is the fan with part number 52079528AB the one that this replaces. or will this one work too?
What is the over all diameter of this recall fan?

[DennyB]

Originally Posted by BCOWANWHEELS

I JUST FITTED MY NEW JEEP FAN IN MY SCHROUD. wow it fits perfect..... anybody need the specs where to make the notch in the botton. it will save you a lot of time and aggravation on where to make it " just right " pm me if i can help with specs. and photos.
thanks for the great tip my 250 I 6 needed this bad especially in the winter when no fan is needed. i,am real anxious to do a fuel milage run to compare. bet it get better mpg.........
bob

We would love to have the dimensions and location for the notch in the bottom

[Ace in the hole]

Originally Posted by DennyB

We would love to have the dimensions and location for the notch in the bottom

Here is what he emailed me-

heres pic,s of the schroud mod. slot hole 1/4" wide, 2 1/2" from back ( engine side ) of schroud. slot is 2 1/2" long and then make a slot on each end of 1/4" slot 1/2" long by 1/8" wide. if you have any questions please call me i,ll be glad to help ya.
bob

[71Rat]

KEH: I did the Nissan dual fans on my other truck, they work very well, but i think this fan pulls more air then the maxima fans do. either one i would do again this one was just easier i thought. but the dual fans have 2 speed motors to them

[clay68c10]

I used the PWM controller on my Lincoln fan. You only hook up the high-speed wire & ground since the controller varies the voltage to the fan.

[ABLAZN]

Originally Posted by clay68c10

I used the PWM controller on my Lincoln fan. You only hook up the high-speed wire & ground since the controller varies the voltage to the fan.

Thanks, one more question, is the PWM controller on the fan itself when you bought it, or did you have to buy it seperate. If you bought, what and where did you get it?

[Ace in the hole]

I have been thinking of using the spal pwm controller for this fan.

http://www.spalusa.com/

[71Rat]

well here is an update for everyone, i took the truck on a 3 hour drive non stop 160 miles one way with the fan, most all highway... truck tach.ing out at 3,000-3,500 almost the whole way! I didnt know if the motor could handle it but the temp gauge never went over 180! if anyone knows Rt80 from nj out into pa they know it has a lot of hills and going up those hills and flats the truck stayed nice and cool!!

for everyone that does this swap i hope the fan works as well for you as it has for me

[pcmcobra]

Finally got around to taking some pics of my setup, wired, working and troublefree.

[72 longhorn BB]

This is a really informative thread, and I can't wait to see the additional installed pictures.

For me, the only missing info is what is the normal temp range that these trucks operate at? 185? 200? - they sell both temp ranges. Maybe you have to match it to the thermostat rating, but I dont know.

Also, looking at jegs, you can just buy the temp sensor from if you already have a relay center.

http://www.jegs.com/webapp/wcs/store...0002_758607_-1

I have a bunch of extra 4 and 6 socket automotive relay boxes around here, so I guess Ill put one of them to work and use the other relay positions for headlight mods, and whatever else comes to mind.

[clay68c10]

ABLAZN; The PWM controller was separate. I bought mine from DCC controls and am very pleased with it, but their customer service sucked... The SPAL controller seems like a nice product for about the same price.

[ABLAZN]

Originally Posted by clay68c10

ABLAZN; The PWM controller was separate. I bought mine from DCC controls and am very pleased with it, but their customer service sucked... The SPAL controller seems like a nice product for about the same price.

Thanks,

I looked into it some after I posted and found most of the same information. It looks like the SPAL unit has been getting good reviews from the guys that have used it and it is available for about $80 shipped. So, my search for a fan begins.

[hyarbour]

That's all very interesting; but how does it do in LA stop-n-go (mostly stop) traffic. Remember the fan isn't providing all the air flow when on the highway, it's getting rammed through the radiator by the vehicle's movement.

[71Rat]

hyarbour: I wouldnt have a second thought of driving my truck through LA now with this fan. I will let my truck idle for hours now if gas wasnt so expensive, also i get stuck in traffic and have yet to have a problem. I know highway speeds air gets rammed through the rad but its also running 3,000-3,500 rpms and with my mechanical even at 2,500 for a while i used to start to get a little hot

[cysko9]

Did anyone ever give a definitive answer about using the temp sensor in the intake (for temp guage) instead of the one mounted in the side of the head?

Would this work?

[DennyB]

Originally Posted by cysko9

Did anyone ever give a definitive answer about using the temp sensor in the intake (for temp guage) instead of the one mounted in the side of the head?

Would this work?

Yes this will work. Not quite as accurate indication of engine temperature as the head but will still work fine. Just make sure your thermostat matches your fan switch sender.
IE: with a 180* thermostat use a sender with 185* on and 170* off.

Edit:
I reread you post and perhaps your just wanting to know if the intake water jacket will work for the temp gauge. This will work as well.

[BCOWANWHEELS]

i found a thermostatic switch that controls the on ( 195 ) off at (180 )degrees . its a very heavy duty model used in off road equipment. has the correct thread size to screw into the head with no adapters and best of all it requires no relay to handle the 30 amps the fan draws at startup. also comes with wireing diagram and can be used with a manuel over-ride switch for driver controled off & on plus provision for a/c fan control. . if you need one or want pictures email me.
bob
bcowanwheels@aol.com

[Arad68]

Originally Posted by BCOWANWHEELS

i found a thermostatic switch that controls the on ( 195 ) off at (180 )degrees . its a very heavy duty model used in off road equipment. has the correct thread size to screw into the head with no adapters and best of all it requires no relay to handle the 30 amps the fan draws at startup. also comes with wireing diagram and can be used with a manuel over-ride switch for driver controled off & on plus provision for a/c fan control. . if you need one or want pictures email me.
bob
bcowanwheels@aol.com

I'd be interested if it was a different temperature range such as on at 180 and off at 160. It gets kinda hot in Las Vegas