I know this has been brought up before ,however (2) questions....Dose matter what hose the valve goes in?Also what type valve should I use?

I put a valve in both hoses, completlyseals off the heater from the hot water. I got a brass ball valve with a barbed hoes fitting on each end, one hose is 5/8" the other is 3/4".

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Lifetime Member #116
Dave's '82

   

Just one does not help as much as the two because the heat migrates up the water in the open hose. You only need to close them in the spring and then open them in the fall, not much trouble at all.

I put mine so you can get at both from the engine compartment.

Part numbers for the valves at NAPA:

3/4 inch 660-1413 

5/8 inch 660-1414

 

Why cant a hose be run from the intake to the water pump ? and have the heater core hoses disconnected and tucked away neatly ? ? ? ? 

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1980 , ZZ430 , 3.92 rear , 700R4 2400 stall NEW EZ EFI 

I also have the valves from NAPA and agree with DaveM that they get difficult to turn after they have been on a while.  They are neat and compact but a PITA to open and close each Spring and Fall.

Tony, that's exactly what the previous owner did on mine.

You can run one hose from the pump to the intake, and then loop the heater core hose back to itself... though, one hose is a little bigger than the other, in diameter, so, you will have to crank on the hose clamp a bit more, and keep a check on it for leaks... just a bit more convenient to put a shut off valve(got a gate ball valve on dad's car, think i just routed the hoses on mine... been a while since i've had a chance to look under the hood)...  i would lend a word of caution if you do route the hoses, that excessive pulling and pushing on the heater core pipes, might cause a leak... it is copper and solder afterall... :) 

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StingrayJim
NCM Lifetime Member #1936

Stingray's '76���������������������������� StingrayJr's '78���������������������������Lil Red '94

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