The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > Info Center > FAQ Truck Tech > Engine and Drivetrain

Web 67-72chevytrucks.com


 
 
Thread Tools Display Modes
Old 08-22-2007, 09:56 PM   #26
BCOWANWHEELS
Registered User
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
Re: another cheap electric fan build!

71 Rat, Where Did You Get The Thermo Switch, Relay And Manuel Over Ride Switch Pal.
Bob
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline  
Old 08-22-2007, 10:08 PM   #27
71Rat
ran out of money
 
71Rat's Avatar
 
Join Date: Apr 2003
Location: northern, NJ
Posts: 925
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.
__________________
Modify everything, leave nothing alone!~
71Rat is offline  
Old 08-22-2007, 10:14 PM   #28
BCOWANWHEELS
Registered User
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
Re: another cheap electric fan build!

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
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline  
Old 08-22-2007, 10:25 PM   #29
Boog
laying low
 
Boog's Avatar
 
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,441
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.
__________________
Boog
69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver
primer is finer
91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said.

I stand for the flag and kneel at the cross
Boog is offline  
Old 08-22-2007, 11:30 PM   #30
prg machine
Registered User
 
prg machine's Avatar
 
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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!!
prg machine is offline  
Old 08-22-2007, 11:33 PM   #31
prg machine
Registered User
 
prg machine's Avatar
 
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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 a think???
prg machine is offline  
Old 08-23-2007, 12:16 PM   #32
prg machine
Registered User
 
prg machine's Avatar
 
Join Date: Jun 2007
Location: oregon
Posts: 1,069
Re: another cheap electric fan build!

Okay, I re-read this post and found the number. still curious if it will cool the 383 okay????
prg machine is offline  
Old 08-23-2007, 04:58 PM   #33
Scott68-93-97
Registered User
 
Scott68-93-97's Avatar
 
Join Date: Jul 2006
Location: Fair Oaks, CA
Posts: 475
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
__________________
1968 Short Fleet 350/700r4
http://67-72chevytrucks.com/vboard/s...d.php?t=249435
1997 Bagged XtdCab Vortec350/4L60e
http://67-72chevytrucks.com/vboard/s...44#post2286144

1993 XtdCab Longbed 4x4 6.5Turbo/NV4500 "Daily Driver"

1985 Toyota XtdCab 4x4 22re/W-56/Dual T-cases, Doug Thorley Header, Homebrew front and rear spring packs, Tons of Mods to suspension and drivetrain, 35" boggers, coming soon ARB's and 5.29's, Possible 4.3/700r4 swap
Scott68-93-97 is offline  
Old 08-23-2007, 06:33 PM   #34
71Rat
ran out of money
 
71Rat's Avatar
 
Join Date: Apr 2003
Location: northern, NJ
Posts: 925
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.
__________________
Modify everything, leave nothing alone!~
71Rat is offline  
Old 08-23-2007, 06:41 PM   #35
71Rat
ran out of money
 
71Rat's Avatar
 
Join Date: Apr 2003
Location: northern, NJ
Posts: 925
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.....
Attached Images
     
__________________
Modify everything, leave nothing alone!~
71Rat is offline  
Old 08-23-2007, 07:01 PM   #36
jorgensensc
Registered User
 
jorgensensc's Avatar
 
Join Date: Jul 2003
Location: Cypress, Tx
Posts: 4,005
Re: another cheap electric fan build!

Looks Great!! Silly Question, but how is the noise when it is on, from inside the cab?
__________________
1972 C20 Suburban- Big Blue Betty
'56 Chevy Bel Air Sedan- Frame up Restoration

-What would you attempt to achieve if you knew you could not fail?-

-I Refuse To Tiptoe Through Life, Only To Arrive Safely At Death's Door-

R.I.P. EAST SIDE LOW LIFE
jorgensensc is offline  
Old 08-23-2007, 07:21 PM   #37
71Rat
ran out of money
 
71Rat's Avatar
 
Join Date: Apr 2003
Location: northern, NJ
Posts: 925
Re: another cheap electric fan build!

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
__________________
Modify everything, leave nothing alone!~
71Rat is offline  
Old 08-24-2007, 12:57 AM   #38
jorgensensc
Registered User
 
jorgensensc's Avatar
 
Join Date: Jul 2003
Location: Cypress, Tx
Posts: 4,005
Re: another cheap electric fan build!

Quote:
Originally Posted by Jim_PA View Post
I have about 20 of these units on-hand (used). $25 shipped; PM me if interested -- first come, first serve of course .
Are these the new ones, or the ones they are replacing that are defective?
Shawn
__________________
1972 C20 Suburban- Big Blue Betty
'56 Chevy Bel Air Sedan- Frame up Restoration

-What would you attempt to achieve if you knew you could not fail?-

-I Refuse To Tiptoe Through Life, Only To Arrive Safely At Death's Door-

R.I.P. EAST SIDE LOW LIFE
jorgensensc is offline  
Old 08-24-2007, 04:48 AM   #39
72armyswbtruck
Registered User
 
72armyswbtruck's Avatar
 
Join Date: Feb 2004
Location: Idaho
Posts: 4,034
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.
__________________
"Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"
72armyswbtruck is offline  
Old 08-24-2007, 05:03 AM   #40
72armyswbtruck
Registered User
 
72armyswbtruck's Avatar
 
Join Date: Feb 2004
Location: Idaho
Posts: 4,034
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.
__________________
"Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"
72armyswbtruck is offline  
Old 08-24-2007, 05:46 AM   #41
71Rat
ran out of money
 
71Rat's Avatar
 
Join Date: Apr 2003
Location: northern, NJ
Posts: 925
Re: another cheap electric fan build!

BCOWANWHEELS: yes I believe the fan comes on while going down the road, have yet to try it on the highway for a long distance though

72armyswbtruck: im not 100% sure there is enough room for both fans, but try it and let me know. my v-8's in the I-6 mounts so its back farther then most. Also you will be more then fine with the 30amp from painless... mines a 30amp from jegs and i have no problem... i did test a fan on a jeep one day and if i remember right it only drew around 12amps
__________________
Modify everything, leave nothing alone!~
71Rat is offline  
Old 08-24-2007, 09:30 AM   #42
OLDIRON69
Registered User
 
Join Date: Mar 2007
Location: Ben Wheeler,Texas
Posts: 992
Re: another cheap electric fan build!

Quote:
Originally Posted by 67 dually View Post
I have a couple of these Jeep fans in stock for $$35.00 shipped to your door
Thanks
Steve O
Are these used as well?? If new, I definately want one. I was towing yesterday, 95* outside and temp gauge STAYED at 220!!!!!!
__________________
05 2500HD 6.0 excab
69 LWB-Gone but not forgotten!
68 Dodge Charger 383/727
69 Dodge Charger-440/4spd
OLDIRON69 is offline  
Old 08-24-2007, 01:09 PM   #43
msgross
Registered User
 
msgross's Avatar
 
Join Date: Jul 2006
Location: Central PA
Posts: 12,201
Re: another cheap electric fan build!

The recall was for the blades breaking, I don't know how many reported cases it took but you know how recalls are... They'll change the entire fleet just to prevent a lawsuit from someone....
__________________
The Garage:
1968 K-10 SWB - "Project Money Pit"
1996 Z-71 - "huntin rig"
1969 C-10 LWB (SOLD) "Project flip that truck or else"
1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie"


My Garage Build "The 1,000 footer"
msgross is offline  
Old 08-24-2007, 09:16 PM   #44
71jimmy
Registered User
 
71jimmy's Avatar
 
Join Date: Mar 2004
Location: Sacramento, CA
Posts: 1,084
Re: another cheap electric fan build!

WOW, outstanding post!

Hope this isn't a dump question but is there a way to run the fan off the temp sensor for the water temp gauge? This way there would not be a need to drill into the head for a switch. I'm a little leery of doing that.

71Rat, maybe you could give us a little info on how to locate the proper area on the head to hit a water jacket, with the head on. And what you used to drill, tap, and keep the debris out.

Thanks
__________________
'71 Jimmy, 350, SM465, NP205, 2in Tuff Country lift, 33s on rallies, TBI, softtop and hardtop

"If life was fair you'd be able to afford one of each and a garage large enough to house them all."
71jimmy is offline  
Old 08-24-2007, 09:20 PM   #45
stepside454
Registered User
 
stepside454's Avatar
 
Join Date: Nov 2003
Location: st. louis area
Posts: 1,551
Re: another cheap electric fan build!

he put the sending unit in the existing hole already in the head from the factory
__________________
75 GMC C-15 short/step factory 454, lowered
stepside454 is offline  
Old 08-25-2007, 03:59 PM   #46
smbrouss70
Registered User
 
smbrouss70's Avatar
 
Join Date: Sep 2003
Location: Rayne, LA
Posts: 2,784
Re: another cheap electric fan build!

Does anyone know the cfm rating of this fan?
__________________
Steven

"If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers
R.I.P. Oscar

R.I.P. Ratchet

1967 Pontiac GTO - Dad was the Original Owner
1970 Chevy 2wd SWB "Oscar's Truck"
1970 Chevy 2wd Blazer "Ratchet's Blazer"
2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar"
2017 Chevy Suburban "BDB"
2020 Chevy Blazer Premier "Foxy"

Member of Louisiana Classic Truck Club (LCTC)

Shop Build
smbrouss70 is offline  
Old 08-25-2007, 04:16 PM   #47
70c10
67-72 Addict!
 
70c10's Avatar
 
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
Re: another cheap electric fan build!

Quote:
Originally Posted by 72armyswbtruck View Post
I personally love the setup. For around $100 bucks you get a very tidy electric fan. I am gonna definately try this one. Thanks again for this post.
with everything 72armyswbtruck said! . The only thing I "might" do is drill a small hole in the lower side of the shroud to run the wires thru to conceal them a little more. Thanks again 71Rat for a great post!
__________________
Jim

1970 C/10 Fleetside w/Ghost Flames
Lowered 4.5" front and 4" rear (Raked)
355/350 Turbo w/shift kit
10" Redneck Performance Verter w/2500 stall
Hooker Super Comps part#2808-1
Performer RPM Air-Gap
12 Bolt w/3:73 gears- Eaton Posi
Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads
70c10 is offline  
Old 08-25-2007, 07:19 PM   #48
71jimmy
Registered User
 
71jimmy's Avatar
 
Join Date: Mar 2004
Location: Sacramento, CA
Posts: 1,084
Re: another cheap electric fan build!

Quote:
Originally Posted by stepside454 View Post
he put the sending unit in the existing hole already in the head from the factory
Thanks for clearing that up, makes it a lot easier.

So can you still use your stock in dash temp guage off the new sending unit for the fan?

Thanks
__________________
'71 Jimmy, 350, SM465, NP205, 2in Tuff Country lift, 33s on rallies, TBI, softtop and hardtop

"If life was fair you'd be able to afford one of each and a garage large enough to house them all."
71jimmy is offline  
Old 08-25-2007, 08:00 PM   #49
71Rat
ran out of money
 
71Rat's Avatar
 
Join Date: Apr 2003
Location: northern, NJ
Posts: 925
Re: another cheap electric fan build!

thank you everyone, after i did mine i thought about that hole also or trying to figure a way to have the wires go out the front of the shroud to make them less noticable.

71 jimmy: you have a left and right head so worse case is run the stock sending unit in the left head and run the thermo switch in the right head.
__________________
Modify everything, leave nothing alone!~
71Rat is offline  
Old 08-25-2007, 10:31 PM   #50
Ace in the hole
Registered User
 
Join Date: Apr 2007
Location: Kalamazoo, Michigan, USA
Posts: 538
Re: another cheap electric fan build!

Nice job, I like this fan set up. This could also be used with a spal pwm control and have variable speed control of the fan couldn't it?
__________________
1970 K20, 350--- SOLD
05 silverado extended cab short box- duramax
Jeep wrangler unlimited
Ace in the hole is offline  
 

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:36 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com