Author Topic: Blocking Air Flow in the Cabin  (Read 93 times)

JonG78TransAm

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Blocking Air Flow in the Cabin
« on: November 10, 2018, 04:01:06 PM »
I've gutted the A/C and the Heat along with all the ducks. Maybe one day i'll reapproach modern A/C and heat. For now I don't care. What is the best way to block all air flow that comes towards your feet? Just weld over the holes? I'd hate to do that. Anyone else done this?

Gene-73

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Re: Blocking Air Flow in the Cabin
« Reply #1 on: November 10, 2018, 04:29:08 PM »
It's not difficult to fabricate some plates out of sheet metal to cover the four openings (upper and lower on each side). They can screw on using existing holes. Just add a little RTV to seal them or make a gasket out of closed cell foam if you want them more removable.

My Vintage Air AC unit came with plates to close off three out of the four as it's a recirculation only system.
Gene


firebirdparts

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Re: Blocking Air Flow in the Cabin
« Reply #2 on: November 10, 2018, 05:01:00 PM »
You need to plate the firewall, but the natural place for air to come in is through the tunnel in the cowl.  That is where the fan picked up air, but the right kick panel also could let some air in.  The left kick panel also has a big air hole behind it, but normally it's blanked off and sufficiently sealed up on an A/C car.
I want to be like Paul Kenny when I grow up
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1977 Y82 4-speed (red interior)
1978 Skybird 350
1978 Redbird 305
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Aus78Formula

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Re: Blocking Air Flow in the Cabin
« Reply #3 on: November 10, 2018, 05:12:13 PM »
If the car is apart now, consider your future plans now and not have to pull car off the road for years in the future to try and correct.

MNBob

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Re: Blocking Air Flow in the Cabin
« Reply #4 on: November 11, 2018, 09:42:03 AM »
A lot of the heat comes out there because there is always coolant circulating through the heater core.  You can
install a heater control valve or even a simple block off and it will stop it.  See this topic:

Heater Core Shut-off
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Re: Blocking Air Flow in the Cabin
« Reply #4 on: November 11, 2018, 09:42:03 AM »