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Topic: Heater hoses, taps or disconnect

in Forum: C3 Cooling and Heating Systems


Heater hoses, taps or disconnect

Posted: 6/9/09 10:39pm Message 1 of 10
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Australia
Joined: 5/15/2009
Posts: 28
Vette(s): 1979 corvette

Gidday, I have been looking at all the posts for the problem of the over heating in the passenger compartment.

Rather than installing taps to turn on and off, were the heat can still work past the taps, can you just diconnect the hoses from the pump and thermostat housing. Then get another piece of hose and connect it to the outlets from were the heater hoses came from ?

Will this work and does this hose need to be on to have the water flowing as if the heater was on ?
 
regards
 
Andy from down under



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Heater hoses, taps or disconnect

Posted: 6/10/09 1:53am Message 2 of 10
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Indianapolis, IN - USA
Joined: 9/3/2006
Posts: 2429
Vette(s): Silver 1974 Convertible - L82 4 speed Low miles (was only 8,900 when I bought it in March 2006) - Now 54K miles. Original owner bought it as an investment for son's college expenses. 2008 Jetstream Blue Convertible
I think this is the general idea I was looking for - instead of cutting and installing the valves to turn on and off, I want to just take the heater core out of the equation.  As to where you perform that bypass, I'm not sure of any need to do it anywhere special...


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Heater hoses, taps or disconnect

Posted: 6/10/09 2:38am Message 3 of 10
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Australia
Joined: 5/15/2009
Posts: 28
Vette(s): 1979 corvette
Hi manget1,
 
I was trying to think of a way to make up brass elbows or brass 180 deg corners and be all flash, but I think the quickest and easiest is to just disconnect them.
 
We have just started winter here and on a fine day it will get between 18 and 24 deg so having a heater is not all that important, when I only plan to drive the Vette on sunny days.
 
 
Andy down under



Heater hoses, taps or disconnect

Posted: 6/10/09 7:43am Message 4 of 10
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Oceanside, CA - USA
Joined: 11/19/2003
Posts: 191
Vette(s): 1978 Silver Anniversary model. Original L82 engine, 700r4 trans, edelbrock intake, thorly headers, rack&pinion steering, mono rear and front spring, MSD 6A box
When my heater core went belly up I disconected the heater hoses and used a 5/8 x 3/4 adaptor to conect them together so the water still flowed, and put rubber nipples on the copper heater core tubes. Everything work ok. 
 



Heater hoses, taps or disconnect

Posted: 6/10/09 8:13am Message 5 of 10
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Leavenworth, KS - USA
Joined: 1/24/2007
Posts: 426
Vette(s): MM Red 1971 T-top,LS5,4-speed, black leather C5 seats, Hooker sidepipes. Previous: 64 Coupe, 65 Roadster L76 / N14
My question is what happens to the heater core if you bypass it completely? 
 
Does it rot or dry up?  Does it rust inside? 
 
Would it still be operational five years down the road when (God forbid!) you S-E-L-L the car (please forgive me!).
 
If there are no adverse effects, it would make sense to bypass completely (provided you don't need a heater).



Heater hoses, taps or disconnect

Posted: 6/10/09 8:17am Message 6 of 10
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Oklahoma City, OK - USA
Joined: 4/1/2007
Posts: 432
Vette(s): 1972 LS5 Convertible,Auto.Targa Blue with Black Interior.
On my 72 the heater hoses from the factory made a loop from the engine to the heater to the overflow tank. What I did was just run both hoses to the tank and it looks clean and does not seem to be a problem.


Heater hoses, taps or disconnect

Posted: 6/11/09 5:34am Message 7 of 10
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Flanders, NJ - USA
Joined: 1/27/2004
Posts: 2553
Vette(s): 1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.
[QUOTE=bio11]On my 72 the heater hoses from the factory made a loop from the engine to the heater to the overflow tank. What I did was just run both hoses to the tank and it looks clean and does not seem to be a problem.[/QUOTE]
Not able to follow that, are the 2 hoses from the heater going to the tank, what about the 2 from the engine, did you plug them? If you ran any hose from the engine to the tank, that's no good, you will no longer have a pressurized cooling system. Can you give us more detail?
Dave



 

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Dave's '82


   

Heater hoses, taps or disconnect

Posted: 6/11/09 7:47am Message 8 of 10
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Oklahoma City, OK - USA
Joined: 4/1/2007
Posts: 432
Vette(s): 1972 LS5 Convertible,Auto.Targa Blue with Black Interior.
On the 72 LS5 you have one hose from the engine to the heater core, one from heater core to the tank, and one from the tank back to the engine. The radiator cap is on the tank not the radiator. So you are taking the heater core out of the loop, so you eliminate one hose and just have one from the engine to the tank and one from the tank back to the engine. It makes no difference in your pressure. your just eliminating one hose and the heater core from the equation. I'm not familiar with how later models are plumbed, but this is nice and clean on mine.


Heater hoses, taps or disconnect

Posted: 6/11/09 8:12am Message 9 of 10
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Mounds View, MN - USA
Joined: 5/24/2007
Posts: 1031
Vette(s): 70 LT1 coupe, 69 350 HP coupe, 69 390HP 427 coupe, 71 LS5 convert, 85 coupe, 93 coupe
Back when you could order "Heater Delete" cars, they just had a plug in the intake and water pump.  There was no bypass hose at all. So obviously you can do anything from valves, to bypassing, to just plugging.  As far as the heater, If your core is full of soggy crud, it might harden with no water in it, but if you have been keeping your cooling system reasonably clean, brass certainly does not rust, so there should be no problem down the road.

Larry



Heater hoses, taps or disconnect

Posted: 6/11/09 1:48pm Message 10 of 10
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Flanders, NJ - USA
Joined: 1/27/2004
Posts: 2553
Vette(s): 1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.
[QUOTE=bio11]On the 72 LS5 you have one hose from the engine to the heater core, one from heater core to the tank, and one from the tank back to the engine. The radiator cap is on the tank not the radiator. So you are taking the heater core out of the loop, so you eliminate one hose and just have one from the engine to the tank and one from the tank back to the engine. It makes no difference in your pressure. your just eliminating one hose and the heater core from the equation. I'm not familiar with how later models are plumbed, but this is nice and clean on mine.[/QUOTE]
Thanks for filling me in, I did not know that.
Dave



 

Lifetime Member #116
Dave's '82


   

in Forum: C3 Cooling and Heating Systems


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