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01-19-2004, 12:27 AM
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#1 |
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Registered User
Join Date: Nov 2003
Posts: 117
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heater hose question
What is the correvt way for the heater hoses to run on a non a/c 72?? He's got the top hose coming out of the heater core going to the intake and the bottom going to the water pump. We've seen them put on both ways. Does it make a difference?? Thanks
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Just a little crazy 1970 chevy full size half ton, soon to be one ton running gear, 350 turbo, 205 case, 355c.i. |
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01-19-2004, 12:30 AM
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#2 |
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Registered User
Join Date: Jan 2003
Location: Washington State
Posts: 8,834
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being two different size hoses........you should be able to tell where they go. Unless they changed the fittings for some reason.
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1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo |
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01-19-2004, 12:34 AM
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#3 |
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Howzit?!?
Join Date: Jan 2003
Location: Maryville, TN
Posts: 1,266
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I think it makes difference, for the correct cooling at least. Like Blue Beard said, they are different sizes so that should help. I thought the only choice was if the water pump had both fittings, you could eliminate it running into the intake... I may be wrong.
J
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Jason Hawaiian-J 70 Longbed, 307, Edelbrock Carb 1404, Edelbrock Intake 2101, Dual Roller Timing chain and gears, 214/214 cam, Comp Roller Rockers, dual Flowmasters. 1999 Chevy Tahoe 2004 Mini Cooper S 71 BMW 2002 - Sold |
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01-19-2004, 12:49 AM
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#4 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Onless you are doing a 100% resto, then it does not matter. Hot watter goes in, the fan blows air through it, and not so hot water comes out.
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01-19-2004, 03:48 AM
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#5 |
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My other Love
Join Date: Aug 2001
Location: Castlegar B.C. Canada
Posts: 4,085
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if it dont work, then switch them around till you get heat
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 Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life |
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01-19-2004, 05:43 AM
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#6 |
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Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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The one on the water pump would be the supply and the one on the intake would be the return im thinking*** because the water pump one is on top of it wich would be after the vein and the intake port would be before it wich should be suction . Ive always seen them with the 3/4 hose on the water pump and the 5/8 on the intake or the radiator
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01-19-2004, 02:09 PM
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#7 |
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"Ochre Ogre"
Join Date: Apr 2000
Location: Springfield, MN
Posts: 3,558
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Here is the official and right way. You want the 5/8" inlet connection at the bottom and the 3/4 outlet connection at the top. Anything different means you have your heater core in upside down. Your hottest water will be at the thermostat therefore the nipple next to it is where you would connect the 5/8" hose. The 3/4" return line will go 1 of 2 places. The first is the radiator. Trucks with automatics had a return line right to the radiator. It is a hard radiator to find as a replacement, so many have been changed out to the 2nd location. That location is the waterpump where it is recirculated through the engine.
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Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087 |
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01-19-2004, 02:47 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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Da Burb has given the correct way they should hook up.
Jim |
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