radiator fan problems
Thread Starter
|
Senior User
Joined: Aug 2000
Posts: 186
Likes: 0
From: Haveloce
radiator fan problems
I am currently having troubles with my cooling so i am upgrading to eletric fans and i have a couple of ? They are what is good cfm to be pulled accross the rad? I have located a black magic elec fan that pulls 2800 cfm, the other ? is I can get two fans for $150 less and use one as a puller and one as a pusher but they only create about 1200cfm each, will that be equivelant to the black magic fan?
any help would be appreciated
Thanks
any help would be appreciated
Thanks
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
radiator fan problems
Don't use electric fans. Use the stock fan with a thermostatic clutch and the proper shroud for your engine and fan.
If you don't have a working fan shroud your engine will overheat, usually at idle or low speeds.
Make sure all of your rubber flaps are in place around the radiator support or your engine will overheat at cruising speeds.
Make sure you are using a 50/50 coolant mix in your radiator.
Put a good RobertShaw brand 192/195F thermostat in.
Check your fan belts...
If you don't have a working fan shroud your engine will overheat, usually at idle or low speeds.
Make sure all of your rubber flaps are in place around the radiator support or your engine will overheat at cruising speeds.
Make sure you are using a 50/50 coolant mix in your radiator.
Put a good RobertShaw brand 192/195F thermostat in.
Check your fan belts...
Thread Starter
|
Senior User
Joined: Aug 2000
Posts: 186
Likes: 0
From: Haveloce
radiator fan problems
thanks for the reply
I do alot of off roading where my fan is bearly moving low rpm and not enough to cool in hot weather and during rock crawling
that why i was thinking of going to electric fans
I do alot of off roading where my fan is bearly moving low rpm and not enough to cool in hot weather and during rock crawling
that why i was thinking of going to electric fans
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
radiator fan problems
Keep the stock setup and go with a big aux pusher mounted in front then. Set it up to kick in at about 210F. Make sure your stock setup has a thermostatic fan, shroud, and is in good condition.
Senior User
Joined: Mar 2002
Posts: 490
Likes: 1
From: Phx, AZ
radiator fan problems
you might also try putting in a high flow water pump($80). i put one in on my 400 and have a 195* t-stat new fan cluch and had the rad rodded($65)and i'm running 200*-215* with the fan shroud.
Trending Topics
Posting Guru
Joined: Feb 2002
Posts: 2,404
Likes: 3
From: Cleveland, WI USA
radiator fan problems
Originally posted by Torque1st
Don't try one of those flex fans either, -they are worthless!
Don't try one of those flex fans either, -they are worthless!
Do you mean the stock 5 blade flex fans?
Kevin K.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
radiator fan problems
Mil1ion is correct, the aftermarket units are worthless. While the stock flex fans work well the best setup is still the stock thermostatic clutch fan. Less noise and less power draw.
BUT YOU MUST HAVE A FAN SHROUD!!!
BUT YOU MUST HAVE A FAN SHROUD!!!
Posting Guru
Joined: Feb 2002
Posts: 2,404
Likes: 3
From: Cleveland, WI USA
radiator fan problems
I agree. I'd like to get a clutch fan for my 460.
I would also say that electric fans are more trouble than they're worth. They just don't move enough air. You could get away with it if you set it up right, though.
Memorial day we went wheelin' and my cousin truck had nothing but problems. It was HOT and we were idling most of the time so that just made things worse. He has a chebby 350 with dual electric fans and the thing would overheat every 20 minutes or so. He'd shut it down but could never restart without a jump cuz the fans drained the battery. We had to carry a spare battery to swap in to make it through the day.
The problem he as is the electric fans don't cool fast enough, which makes them run ALL the time. His alternator is probably not rated to handle the fans either so the battery drains in no time.
Granted, it's a chebby, but I have since abandon the electric fan swap for mine after that.
Kevin K.
I would also say that electric fans are more trouble than they're worth. They just don't move enough air. You could get away with it if you set it up right, though.
Memorial day we went wheelin' and my cousin truck had nothing but problems. It was HOT and we were idling most of the time so that just made things worse. He has a chebby 350 with dual electric fans and the thing would overheat every 20 minutes or so. He'd shut it down but could never restart without a jump cuz the fans drained the battery. We had to carry a spare battery to swap in to make it through the day.
The problem he as is the electric fans don't cool fast enough, which makes them run ALL the time. His alternator is probably not rated to handle the fans either so the battery drains in no time.
Granted, it's a chebby, but I have since abandon the electric fan swap for mine after that.
Kevin K.
New User
Joined: Jun 2003
Posts: 7
Likes: 0
From: Vancouver Island, BC
radiator fan problems
I changed the stock 5 blade fan on my 79 F250 S/C (400) to an aftermarket clutch with an OEM 7 blade Ford fan. The temperature dropped 10 - 15 F depending on conditions. I also changed out the stock rad for a larger 460 rad.
I pull a 4500 # TT and the coolant temperature has never exceeded 205 F. It is a treat now, knowing I won't have any overheating problems.
First time user.
I pull a 4500 # TT and the coolant temperature has never exceeded 205 F. It is a treat now, knowing I won't have any overheating problems.
First time user.
Freshman User
Joined: Apr 2003
Posts: 30
Likes: 0
From: Valdivia, South of Chile
radiator fan problems
Is there a bolt-on fan clutch for older ('75 302) 4 blade original fan? I was planning also a electric fan conversion, but for the opposite: my truck gets too cold during winter. But after reading this discussion, I'm considering a thermostatic clutch.
Thread
Thread Starter
Forum
Replies
Last Post
390Highboy
1973 - 1979 F-100 & Larger F-Series Trucks
9
Jul 9, 2011 02:05 PM
fasthauler
Cooling, Heating, Ventilation & A/C
8
Oct 11, 2008 04:26 PM
DIRTY_D
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
8
Apr 15, 2008 12:48 PM
evad4321
Explorer, Sport Trac, Mountaineer & Aviator
5
Nov 16, 2006 01:27 AM