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07-05-2012, 05:29 PM
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#1 |
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Registered User
Join Date: Jan 2007
Location: Keller, TX
Posts: 143
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Heater Hose Question
I have a 72 C10 with Factory air and I have the heater hoses hooked in this way - I am running from the manifold to the heater core and then back to the top of the radiator - I see everyone here saying that it should run to the water pump. If so, what do I run from the top of the radiator?
Thanks KellerMac
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Texas - Don't Let The Size Scare You! |
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07-05-2012, 06:09 PM
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#2 |
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Registered User
Join Date: Apr 2012
Location: Henderson Nevada
Posts: 804
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Re: Heater Hose Question
My truck is set up like yours.
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07-05-2012, 06:11 PM
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#3 |
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Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,147
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Re: Heater Hose Question
Mine to.
Posted via Mobile Device
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1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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07-05-2012, 06:12 PM
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#4 |
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Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,229
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Re: Heater Hose Question
It will work either way. If you dont use thr outlet in the radiator you put a cap on it.
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07-05-2012, 06:33 PM
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#5 |
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Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Heater Hose Question
The heater core inlet hose runs from the manifold through the heater valve to the lower core pipe. The core outlet hose runs from the upper core pipe to the water pump direct. The upper radiator hose runs to the T-stat housing and the lower runs to the water pump. Maybe I'm missing something but where are you hooking the heater hose into the radiator?
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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07-05-2012, 06:39 PM
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#6 |
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Registered User
Join Date: Aug 2009
Location: Alden NY
Posts: 2,705
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Re: Heater Hose Question
My 70 didn't have the nipple on the radiator whereas the 71 Blazer does, so I think either way is correct and year dependent. the Assembly Manual drawing is for a 68.
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1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7 |
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07-05-2012, 07:12 PM
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#7 |
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Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Heater Hose Question
Just when I was going to say I had never seen one, a picture in my collection finally pops up. Interestingly it seems to come off of the heater valve and run to the radiator. Suspect that the inlet and outlets hoses are reversed though. With the side terminals it is a late truck. So was it a year change? A/C only change? Or limited to specific engines or assembly plants?
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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07-05-2012, 07:44 PM
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#8 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Heater Hose Question
Here is the heater hose schematic from the Assembly Manual. V-8's with automatic are listed to have the radiator return but most of the ones that I have seen have AC in addition to V-8 with Automatic.
Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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