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Post by 73seb5blue on Jul 9, 2012 17:35:53 GMT -5
???I had our car completely restored a couple of years ago and need to clear up some little issues. The vacuum lines that control the actuators in the heater are now missing and the heater stays in the vent mode only. I think that the lines hook up to a 2 nipple control located on the passengers side firewall but where do they come from. I found a post from DynoDave that showed the diagram of the lines under the dash. I know that this all in working order because after I redid the heater box it worked fine. The problem occurred when our Carter carb would not stay in adjustement and was switched out for an Edelbrock. Those lines weren't reinstalled. Does anyone have the diagram for this, or a photo of the engine well that I can go off of?
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DynoDave
CO-ADMINISTRATOR
Motown Mopar-Wizard
Posts: 11,150
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Post by DynoDave on Jul 10, 2012 10:48:00 GMT -5
I don't have a set of '73 Factory Service Manuals (FSMs), and I'm not spotting a set of diagrams that are helpful in my '72 FSM (Factory Service Manual). Looking at a later drawing of ThermoQuad vacuum ports... ...I don't see anything that is designated for the Heater, Ventilation and Air Conditioning (HVAC) system. I would therefore guess that the vacuum hose that supplies vacuum to the control is connected right to the intake manifold, usually at a vacuum tee/tree of some sort. Anyone here with a '73 that can check this for us?
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