hot water shut off valve.

[Danno]

Sorry to be a PITA, as I have asked this question before and gotten an answer.

I have a 72 302 that HAD a/c when I bought the car, but most of the essential parts were missing.

I removed everything mechaniclly a/c related, and went with just the heater for heat and windows for cooling.

I was told if I remove the control valve, I would have heat all the time because the core would have the heated fluid from the radiator all the time. Isnt that the same case with a non-a/c car?

I rebuilt and resealed the heater box, and my heat selector still has an a/c option on it which is now not going to be used.

What am I missing? Doesn't a non-a/c car always have hot fluid all the time? I have the radiator out now for repair and am going to replace all the hoses,radiator and heater. I do realize my car has only one fresh air vent also on the psgr side.

Thanks for your patience and answer:-/:huh::shootself:

 

[red351]

Non a/c have no valve just a door inside the box that redirects air flow around the heater core, but there always a small amount of heat leakage that gets thru. A shutoff valve does help. A/C cars had a restricter valve that never completely stop the flow, so I always pinch the heater hose shut during summer and it made a/c colder.

 

[rocket366]

You need a heater control valve connected to the inlet hose

to the heater core to control the fluid which is vacuum operated.

Paul

 

[mrmach1]

I think I have one of those heater control valves in my collection of stuff. If you need one let me know.

 

[Danno]

I think I have one of those heater control valves in my collection of stuff. If you need one let me know.

Does it have inline, (straight), fittings, rather than the 90 degree I have now? Thanks for the response. That is what I have now and if I am going to keep it in the system, I would prefer a straight thru flow.