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06-29-2016, 02:39 PM
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#1 |
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Registered User
Join Date: Mar 2016
Location: auburn new york
Posts: 71
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1971 Chevy pickup cooling problem
My 1971 pickup is having cooling issues. Its from Arizona and has a large aluminum radiator with an electric fan on it. The fan died. I was wondering if I just put a regular fan driven by the water pump pulley would that be enough? I live in upstate New York so tremendous outside heat is not an issue. The pump sits 9 inches from the radiator. Any and all suggestions for this problem are appreciated.
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06-29-2016, 04:20 PM
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#2 |
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Senior Member
 
Join Date: Jan 2016
Location: Sugar Hill GA
Posts: 369
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Re: 1971 Chevy pickup cooling problem
If you go with the stock fan get a fan shroud too or it won't work at all. Make sure the fan is inside the shroud about 1/2" or a little more. Again if its outside the shroud it won't work very well.
__________________
1967 C10 Step side 1970 AMX 390 1977 Datsun 280Z highly modified with '95 LT1 power |
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06-29-2016, 06:59 PM
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#3 |
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Registered User
Join Date: Mar 2016
Location: auburn new york
Posts: 71
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Re: 1971 Chevy pickup cooling problem
thank you
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06-29-2016, 09:09 PM
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#4 |
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Registered User
Join Date: Jun 2015
Location: @
Posts: 890
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Re: 1971 Chevy pickup cooling problem
I live in upstate ny too I also have an aluminum rad no shroud and just a 4 blade fan no clutch it cools just fine
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06-30-2016, 03:37 PM
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#5 |
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Registered User
Join Date: May 2013
Location: Coppell, Texas
Posts: 176
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Re: 1971 Chevy pickup cooling problem
I've got a 71 GMC and recently switched to an electric fan. It cooled OK with the stock fan and no shroud even here in Texas, but I switched because the constant drag of the pulley driven Fan on the motor.
My electric fan setup has two fans. I even disconnected one of the fans and its still cools just fine in the heat with full AC running. I would recommend replacing the electric fan because my motor revs easily now. In short, it has noticeably more high end power.
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1971 GMC C15 Sierra Grande SWB 1972 Chevy C10 Custom Deluxe LWB 2018 GMC Yukon Denali Last edited by Thundarr; 06-30-2016 at 03:59 PM. |
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06-30-2016, 04:18 PM
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#6 |
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Registered User
Join Date: May 2013
Location: Coppell, Texas
Posts: 176
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Re: 1971 Chevy pickup cooling problem
sorry
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1971 GMC C15 Sierra Grande SWB 1972 Chevy C10 Custom Deluxe LWB 2018 GMC Yukon Denali |
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06-30-2016, 04:20 PM
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#7 |
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Registered User
Join Date: May 2013
Location: Coppell, Texas
Posts: 176
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Re: 1971 Chevy pickup cooling problem
triple post
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1971 GMC C15 Sierra Grande SWB 1972 Chevy C10 Custom Deluxe LWB 2018 GMC Yukon Denali |
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06-30-2016, 06:33 PM
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#8 |
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Hittin E-Z Street on Mud Tires
Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: 1971 Chevy pickup cooling problem
You might be able to run just a fan up there. I grew up near Jamestown... it flat out does not get hot there...
*IF* you run a fan only, it needs to be spaced 1" from the radiator, otherwise it won't work well. If you do use a shroud, the fan just needs to be about 1/2 in / 1/2 out, spacing from the radiator doesn't matter.
__________________
Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride  American Born, Country by the Grace of God  1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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07-01-2016, 07:49 AM
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#9 |
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Registered User
Join Date: Mar 2016
Location: auburn new york
Posts: 71
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Re: 1971 Chevy pickup cooling problem
thanks a ton guys!!!
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07-23-2016, 05:21 PM
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#10 |
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Registered User
 
Join Date: Dec 2011
Location: acworth georgia
Posts: 890
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Re: 1971 Chevy pickup cooling problem
you can, but make sure to use a shroud as it will make a lot of difference on that application.
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07-23-2016, 05:28 PM
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#11 |
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Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: 1971 Chevy pickup cooling problem
If you've already got the relays, temp sensor, and everything else for the electric, I'd just replace the electric, as a good fan, shroud, and clutch will add up.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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