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By wildlogger - 10 Years Ago
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my 56 has 2 outlets on the core to the left of heater core but above right is a heater outlet with a Y what is that, I ve looked at fotos some cars have it some don't thanx
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By Canadian Hot Rodder - 10 Years Ago
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Can you post a pic? A previous owner may have installed a fitting, possibly to flush the system?
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By crownvic55 - 10 Years Ago
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That Y is the heater control valve to let the water flow thru the heater core. Some cars have a vacuum operated valve mounted in the intake manifold.
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By Daniel Jessup - 10 Years Ago
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crownvic55 (11/20/2015)
That Y is the heater control valve to let the water flow thru the heater core. Some cars have a vacuum operated valve mounted in the intake manifold.
ditto.
That unit is basically a thermostatic control. There is a coil attached that sits in the air plenum as well to make the valve open and close according to what you are calling for on the controls.
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By Kahuna - 10 Years Ago
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I'd sure like to see a picture of that
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By wildlogger - 10 Years Ago
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I ll snap a photo of it!
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By crownvic55 - 10 Years Ago
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Here are a couple of pics. Hope these help. Ben
 
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By Canadian Hot Rodder - 10 Years Ago
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Interesting, I've never seen that, only the valve on the intake. manifold. is that vacuum or cable operated?
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By Ted - 10 Years Ago
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My 1955 Ford station wagon with factory installed air conditioning had that same heater hose Y on it. Is your car a factory air car?
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By crownvic55 - 10 Years Ago
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No, my car (55) has no air conditioning. Car in family since new so this is the way it came. Also had a 56 292 with same valve. Valve is cable operated and as Dan said it has a thermostatic coil to regulate the flow of hot water depending on where the cable lever is set.
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By MoonShadow - 10 Years Ago
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So the heat cable controls a valve on the inside of the firewall that this connects to. Possibly a replacement for the vacuum valve in the heater duct?
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By oldcarmark - 10 Years Ago
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I believe that type of Heater setup is called a recirculating type. Supposed to be more efficient and it is controlled by a bi-metallic spring in the heater Case. I have the same setup on mine and it was never an A/C Car. Not sure why some Cars have the regular Heater and some the re-circulating type. Was never an Option as far as I know.
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By 57RancheroJim - 10 Years Ago
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I wonder if some were factory installed and some dealer installed ? I know that sometimes people would pick a car that was on the lot rather then ordering one and the dealers would install options that the people wanted that may not have been on the car.
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By junkyardjeff - 10 Years Ago
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My 55 sunliner had that style of heater control valve but it broke so I installed a 65 to 72 truck style since I was in a hurry to get it fixed.
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By 82warren - 10 Years Ago
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Yea, and these mechanical valves are getting old, the rubber seal maybe leaking but ... if yours is not leaking and looks good it's probably fine. It's run by a cable to your heater control. There really aren't new ones to be had, there was a guy making the rubber part new so it was possible to rebuild them.
If your mechanical heater control is no good, just eliminate it, put in a shut-off valve. I hate heaters blowing hot air in summer.
82warren
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