Hot water valve location - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hdff · 01-26-2016, 10:14 AM

Can someone post up a pic of the exact location of the hot water valve on one inner fender and the correct hose routing for a 71 BB.

Thanks
Keith

tommys72 · 01-26-2016, 11:59 AM

Is the setup the same for a BB as is is for a SB? If it is, I just put a new water valve and hoses on mine. I could get you pics

hdff · 01-26-2016, 03:14 PM

Quote:

Originally Posted by tommys72

Is the setup the same for a BB as is is for a SB? If it is, I just put a new water valve and hoses on mine. I could get you pics

i'm not sure...

I see you are I springfield mo. , I came up and bought my truck just south of there in Ozark/nixa area.

davepl · 01-26-2016, 03:18 PM

Sorry not the best photo but it'll get you close, and there are likely holes there already or at least dimples.

They are NOT reversible and you should NOT assume mine is correct in the picture - there's a diagram in the shop manual shows it correctly.

hdff · 01-26-2016, 03:48 PM

Quote:

Originally Posted by davepl

Sorry not the best photo but it'll get you close, and there are likely holes there already or at least dimples.

They are NOT reversible and you should NOT assume mine is correct in the picture - there's a diagram in the shop manual shows it correctly.

thanks dave, there are no dimples. the Po had replaced the inner fender wells so they are aftermarket and I am going to have to drill the holes.

your hot water valve look backwards is that why you use the disclaimer?
also do you know the correct sizes of the hoses? I looked thru the service man and can't find it, also looking at the pic in the manual it looks like the hose outta the h2o pump goes to the top of the heater the bottom goes ther the hot water valve to the manifold. does this sound correct?

snipescastle2 · 01-26-2016, 03:57 PM

hoses should be 5/8" and 3/4"
Ben

Andy4639 · 01-26-2016, 04:15 PM

From what I see it's showing the bottom heater core hose going to water valve then going to intake.
Top heater core hose going straight to water pump.
These are both for AC trucks, I don't know if a non AC truck heater hose route would be any different are not

If my memory is right the hose going straight to the radiator is for a manual truck and it going back into the intake was for Auto's. Are vise versa.

tommys72 · 01-27-2016, 12:16 AM

Yea I'm close to Ozark, it's right down the road. I'll get a pic of mine in the morning. I used the factory location for mine. Those factory manuals and Andy helped me a lot

tommys72 · 01-27-2016, 12:21 AM

Not mine, but mine looks just like this

**71CHEVYSHORTBED402** · 01-27-2016, 12:58 AM

Yep, looks just like that. Only shouldn't the hose retainer be mounted to the inner fender about 1.5" forward from the water valve plate?

This water valve business seems to come up every few weeks. I figure to take some good notes on the subject real soon. Heater and evap. box removal begins this weekend. It's a slow process.

tommys72 · 01-27-2016, 05:47 PM

That hose retainer is gone from mine. Wasn't even there

davepl · 01-27-2016, 08:15 PM

Quote:

Originally Posted by hdff

your hot water valve look backwards is that why you use the disclaimer?

I had it backwards at one point but not sure when the picture was taken so just wanted to call that out in case it was backwards, as you suggest it might be!

01-26-2016, 10:14 AM	#1
hdff Registered User Join Date: Apr 2007 Location: pasadena,TEXAS Posts: 880	Hot water valve location Can someone post up a pic of the exact location of the hot water valve on one inner fender and the correct hose routing for a 71 BB. Thanks Keith __________________ 1971 Cheyenne SWB 402BB, 700R4, 3.73 posi, PS, PB, A/C, Tilt, Tach "Wanda" Don't argue with idiots, People watching may not be able to tell the difference... There's someone in my head........But it's not me...... cheap tricks thread great info here!! http://67-72chevytrucks.com/vboard/s...d.php?t=489394

01-26-2016, 11:59 AM	#2
tommys72 Registered User Join Date: Jun 2012 Location: springfield mo Posts: 3,075	Re: Hot water valve location Is the setup the same for a BB as is is for a SB? If it is, I just put a new water valve and hoses on mine. I could get you pics __________________ United States Marine Corps 2000-2011 Iraq and Afghanistan veteran Just living life now and enjoying it and my wife, daughter and son

01-26-2016, 03:18 PM	#4
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Re: Hot water valve location Sorry not the best photo but it'll get you close, and there are likely holes there already or at least dimples. They are NOT reversible and you should NOT assume mine is correct in the picture - there's a diagram in the shop manual shows it correctly. Attached Images __________________ 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

01-26-2016, 03:57 PM	#6
snipescastle2 Registered User Join Date: Mar 2009 Location: WARRENSBURG,MISSOURI,64093 Posts: 1,518	Re: Hot water valve location hoses should be 5/8" and 3/4" Ben

01-26-2016, 04:15 PM	#7
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Hot water valve location From what I see it's showing the bottom heater core hose going to water valve then going to intake. Top heater core hose going straight to water pump. These are both for AC trucks, I don't know if a non AC truck heater hose route would be any different are not If my memory is right the hose going straight to the radiator is for a manual truck and it going back into the intake was for Auto's. Are vise versa. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

01-27-2016, 12:16 AM	#8
tommys72 Registered User Join Date: Jun 2012 Location: springfield mo Posts: 3,075	Re: Hot water valve location Yea I'm close to Ozark, it's right down the road. I'll get a pic of mine in the morning. I used the factory location for mine. Those factory manuals and Andy helped me a lot __________________ United States Marine Corps 2000-2011 Iraq and Afghanistan veteran Just living life now and enjoying it and my wife, daughter and son

01-27-2016, 12:21 AM	#9
tommys72 Registered User Join Date: Jun 2012 Location: springfield mo Posts: 3,075	Re: Hot water valve location Not mine, but mine looks just like this Attached Images __________________ United States Marine Corps 2000-2011 Iraq and Afghanistan veteran Just living life now and enjoying it and my wife, daughter and son

01-27-2016, 12:58 AM	#10
71CHEVYSHORTBED402 Senior Member Join Date: Feb 2009 Location: Northern Nevada Posts: 7,322	Re: Hot water valve location Yep, looks just like that. Only shouldn't the hose retainer be mounted to the inner fender about 1.5" forward from the water valve plate? This water valve business seems to come up every few weeks. I figure to take some good notes on the subject real soon. Heater and evap. box removal begins this weekend. It's a slow process. __________________ Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 Last edited by 71CHEVYSHORTBED402; 01-27-2016 at 01:04 AM.

01-27-2016, 05:47 PM	#11
tommys72 Registered User Join Date: Jun 2012 Location: springfield mo Posts: 3,075	Re: Hot water valve location That hose retainer is gone from mine. Wasn't even there __________________ United States Marine Corps 2000-2011 Iraq and Afghanistan veteran Just living life now and enjoying it and my wife, daughter and son



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