another cheap electric fan build!
 

ok so many have done electric fans. some have done the maxima fan's(as I have) and other after market fans. heres another one for you guys to try.

I'm a Chrysler tech. and we have this recall for electric fans on Grand Cherokee's. Long story short this lady had a bad fan bought a fan and then came in for the recall. So I had to replace a good, new part number fan.

I'll have to get the part number off of it but here it goes.

The fan fits perfectly inside the shroud. its only a 2 wire fan (ground and power). The only modification to the shroud is 2 holes drilled and a little slit cut in the bottom.

I hope the pictures work, I haven't done this in a while..

Re: another cheap electric fan build!
 

I haven't hooked up the fan yet (still need a switch and stuff, was kinda spur of the moment thing) but i'll post how it works when hooked up. if it can cool a full size jeep with A/C and everything else i cant see why it wont cool our old trucks

here are some more pics:

Re: another cheap electric fan build!
 

Very nice setup. How much do those fans normally go for? Why are the factory fans being recalled? Failure vs. fire hazard, etc.

Re: another cheap electric fan build!
 

Are you going to take the standard fan off once the electric is hooked up?

Re: another cheap electric fan build!
 

project 1971: Thank You

graywolf: Thank You, I dont know I can check tomorrow when i go to work (might be able to get one from a junk yard cheap, just make sure its the new part number witch i'll post tomorrow). The recall was for failure if i remember correctly.

Corn: The plan would be to take the mechanical fan off once the electric fan is wired. Like i said it was a spur of the moment thing i need a switch and a relay and the electric fan will be done.

Re: another cheap electric fan build!
 

71 Rat, the way you did the slit for bottom support is the same way I would have done it also. Looks great inside the shroud! You even have room for a bolt and lock nut if you wanted to go overkill!

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70C10: Thank You, I actually thought about the bolt on that bottom fan bracket but was waiting untill it was all finished incase I had to remove it for some reason.

Re: another cheap electric fan build!
 

That looks sweet. I would like the part number and year/model it came off of. Thanks for the info.

Re: another cheap electric fan build!
 

That looks like a nice setup and a good fit. I have to ask a stupid question though, does the fan turn the right direction so air is sucked through the radiator ? I'm sure it does, just wanted to check :confused:

Re: another cheap electric fan build!
 

st1x10: I will get all the info tomorrow about the part number and what year jeeps it came off of.

Stocker: I hope it is, i personally hate flex fans also but it was on there when i got the truck and im saving for a big block swap so i dont want to put more money then gas money into the truck

green machine: thank you, i was also surprised about the fit also, almost like chrysler thought of our trucks while building it hahahahaha. and yes it will turn in the correct direction (as designed and to pull the air through the rad.) when wired up

Re: another cheap electric fan build!
 

Great job! Definitely let us know how it works!

I have to ask though.... how the heck is your motor so far from the radiator? That's quite the extender on your fan and it's still not in the shroud?

Re: another cheap electric fan build!
 

You can do the same thing with a fan for a lincoln Mark8 and supposedly the rate at 4000CFM. I bought one and if you trim the the electric fan shroud it fixs perfect. I just decided I don't want the factor shrould.

Re: another cheap electric fan build!
 

thank you everyone for the kind comments about the fan. I will let everyone know how it works once wired up.

Today I looked up the part numbers and the fan's part number is:CBG4F250 and my dealership's full list for it is $69.95.

someone asked the question of why there was a recall and the orig. fan had problems with the blades they would crack.

67chevy redneck: My motors so far back because it was orig. a 6cyl. and the PO put a sbc in the 6cyl location.

Re: another cheap electric fan build!
 

Here's the recall http://www.wjjeeps.com/tsb/recall_f25.pdf

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70GMCer: yup, you got that recall correct

Re: another cheap electric fan build!
 

nice job... what is the price of the other parts to make it work?

Re: another cheap electric fan build!
 

msgross: it matters on how you want to wire it up, Im going to wire mine up with a thermo switch, relay and fuse. I actually got a kit from jegs p/n: 555-10560 it was $45.99. You might be able to find everything cheaper or build your own style also.

I will post when Its all on, hopefully Thurs night I will have it all hooked up and working (stay late at work and wire it all up)

Re: another cheap electric fan build!
 

Now that's what I'm talkin bout. You still have the full shroud to pull air across all of the rad and the fan is somewhat concealed from view and it's very reasonably priced. A guy can get it in and going for $150 or so with temp controller too. The curved blades are supposed to run a bit quieter than the straight ones aren't they? And thanks for posting this one.

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71 rat, what is the diameter of that assembly,? Im not sure if the opening on my 75 is the same.

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stepside454: The fan is currently inside my shroud so i cant get exact measurements for you but just trying to measure it with a tape measure It looks to measure out at 19 inches. I hope that helps

Re: another cheap electric fan build!
 

Very nice.Should be enough fan for a stock SB if it was designed for a modern 4.0-4.7 I guess. Where are you going to put the thermo switch?

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stepside454: No problem, I will, I hope to have my switch tomorrow in the mail when i get home from work.

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workinlonghorn: I thought the same as far as the fan goes, I was going to mount the switch in the head

Re: another cheap electric fan build!
 

Well Called My Jeep Dealer To Order A Electric Fan Like Yours Today. Jeep Is Out Of Them Because Of The Recall But Will Be Restocking !!!!! Anyway My Cost Was 46.60. Not Bad At All.
Thanks For The Tip And If It Cools Good I,am Gonna Put Them On All My 71 & 72 Trucks. My 71 With A 250 I-6 And A 3 Core Rad Needs It Bad As It Runs Cool Till You Load It Heavy. This Way I Can Not Have A Fan Till I Need It To Bring Empty Miles Temp Up A Little. Seems Like The I-6,s Are Too Cool Or Too Hot All The Time. That 3 Core Sure Helped Out A Bunch. Should Have Done It 15 Yrs. Ago. No To Figure A Place Out For Temp Sending Unit.bob

Re: another cheap electric fan build!
 

ok heres an update for everyone, I just finished the wiring for the fan. I let the truck idle while i cleaned up, a good 15-20 minutes and the fan kicked on and off with the temps of the coolant switch I installed. I know if my truck idled that long with the mechanical fan it would have over heated. I havent driven it with the electric fan yet but the test will be tomorrow to and from work. The fan seems to pull an amazing amount of air (a lot more air then the maxima fans that i did on my longbed). After I was done cleaning up I let the fan run to see how long it took to cool off and to see if i needed to worry about it draining the battery. it ran for only 6 minutes and that was after sitting idle for 20 minutes. Sorry no pictures tonight, I will take some in the day light tomorrow and post them for everyone to see.

I hope this works out as good for everyone else that trys it as it has for me

71rat

Re: another cheap electric fan build!
 

71 Rat, Where Did You Get The Thermo Switch, Relay And Manuel Over Ride Switch Pal.
Bob

Re: another cheap electric fan build!
 

The switch, relay, and harness i used was a jegs kit, part number 555-10560 $45.99. I put the thermo switch in the pass. side head and the relay and circuit breaker on the pass fender. I will post pictures tomorrow of how everything was done. It was to late tonight to take decent pictures. and I also get to test out the fan going to and coming home from work before I post. I also didnt run my switched (relay low current positive side) to my ignition I ran it to my battery positive, so when the trucks shut off the fan will continue to run for a while, the only risk is killing the battery, so im going to watch that for a little while, i might end up running it to the ignition.

I hope this helps out, Tomorrow I will post pictures for everyone showing the wiring and how well the fan works.

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Ya I Think Running It To A Ign. Switch On ( The Only Time It Will Run ) Is The Way I,am Gonna Hook Mine Up.
Thanks
Bob

Re: another cheap electric fan build!
 

That install is just what I have been waiting to see. I knew there had to be one sized just right to fit in the stock shroud. And not over priced either.
Question though. Does that fan bolt directly to the rad in the jeep or does it mount to a similar shroud setup?
And I wouldn't worry with having the fan run on after engine shutdown. The belt driven fans don't.

Re: another cheap electric fan build!
 

HOLD THE PHONE!!! I mean HOLD THE FAN!!!!

This is what I think I need. 383 in a K-20 Towing and slow speed off road and traffic. 4 row stock radiator. Stock hood, no cowl indection stuff here.

What is the number of the fan??? Part number that is. Can any Jeep dealer get it???
GREAT post!!:metal:

Re: another cheap electric fan build!
 

Sorry, forgot to ask in last post,,,,,, will this set up do what I need for this set up I have in mind???? I guess it would have to be better than the stock fan off a 400 I have.............??????????????????
whatch:confused: a think???

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Okay, I re-read this post and found the number. still curious if it will cool the 383 okay????

Re: another cheap electric fan build!
 

Battery positive is okay the fan wont run for long, new vehicles have them hooked up to full power, thats why you'll here the fan run when you shut down a newer vehicle on a hot day, the thing would have to run all night to kill your battery

Re: another cheap electric fan build!
 

Boog: Yes The factory set-up for a jeep has the fan mounted to the shroud like I have done

prg machine: If you look at any big truck that tows they use mechanical fans, look at any 3/4 or 1 ton truck it uses a clutch fan. electric fans are great but alone by themselves they wont cool well for towing or hauling. If I were you I would try around and see if the electric fan will work or use a combo of electric and clutch fan as jeeps with tow packages had. Sorry I cant give you a 100% straight answer if this will cure all of your overheating problems, I just noticed how it fit and shared it with everyone, for me its far better then my mechanical ever did.

scott68-93-97: Thats correct new vehicles have them run after the vehicle is shut-down. I wasnt worry about killing my battery, i just want it to be nice and cool for when i restart it after traveling.

Re: another cheap electric fan build!
 

here are my finished pictures. As you can see i mounted my relay and circuit breaker on my pass. fender by the battery. my fan will run after the trucks shut off but it hasnt run more then 10 minutes even after i have beaten on the truck. So far I havent come across a problem with this fan not being able to cool the truck. It pulls some serious volume of air.... heres the pictures... if anyone has any questions i will try my best to answer them.....

Re: another cheap electric fan build!
 

Looks Great!! Silly Question, but how is the noise when it is on, from inside the cab?

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jorgensensc: inside the cab its not bad at all, i also have loud exhaust. I cant hear the fan over it. outside the vehicle you hear it run and its on the louder side for a fan i think. today walking away from it going into work i was probly 50 feet away and still heard it, but that was in silence of the am also

Re: another cheap electric fan build!
 

Are these the new ones, or the ones they are replacing that are defective?
Shawn

Re: another cheap electric fan build!
 

Can't wait to try this one. I think that it will be most excellent, my truck likes to run hot at idle even with the fan shroud. I wonder if what it will look like with the fan shroud, electric fan and the clutch driven fan.

Re: another cheap electric fan build!
 

Do you know what the amp draw is no the fan, Painless kit is only good to 30AMP according to the instructions.