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72 Dodge Charger Rallye Restoration

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looking at it, it appears that the upper edge of the duct allows the flapper to recess in somewhat with no interference. I believe that is why my upper door will not close completely.

Best picture I have of it. As I remember that is with the door fully closed. When open the flap closes off the engine compartment air.
 
welcome to FBBO
 
Welcome from Georgia.
 
Welcome from Missouri!!
 
Does the lower door flapper that is attached to the duct supposed to sit flush against the duct, or retract into the duct when the upper door is closed. I have mine setup off the vehicle and the upper door will not close properly. You can see the air grabber decal.

The flapper door will sit flush against the duct when the scoop is open. There is a spring on the flapper door that allows the shaft to rotate to the full open position and helps the door to seal tighter against the duct. When the scoop is closed the flapper only opens slightly as in the pic that T2R9 posted. If you have this set up off of the car you may not be getting the scoop to fully close without having the thickness of the hood in play. Are the linkages for the scoop hitting the duct? If not there is an adjustment on the vacuum actuator bracket that may allow full closure.
 
air grabber actuator.jpg
 
Welcome aboard from Ohio.
 
The flapper door will sit flush against the duct when the scoop is open. There is a spring on the flapper door that allows the shaft to rotate to the full open position and helps the door to seal tighter against the duct. When the scoop is closed the flapper only opens slightly as in the pic that T2R9 posted. If you have this set up off of the car you may not be getting the scoop to fully close without having the thickness of the hood in play. Are the linkages for the scoop hitting the duct? If not there is an adjustment on the vacuum actuator bracket that may allow full closure.
I believe that I may have figured it out. The Hood is not on the car, but all components are assembled on the hood. I slid the upper edge of the flapper on the inside of the air box with the lower edge on the outside surface. I applied vacuum and now the door closes. The flapper door upper edge was positioned in the wrong place. Yes the linkage is hitting the duct.
 
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