Author Topic: AC plenum valve  (Read 160 times)

CantRepeat

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AC plenum valve
« on: April 03, 2021, 02:36:54 PM »
As I'm working through the AC vacuum system on my 67 I have discovered that the plenum valve and flap assembly is missing.

I've got a restored piece ready to install but before I do could some one tell me what purpose this assembly served? Is to let fresh air into the system/cabin?

Is it possible to remove the cowl vent grill without removing the windshield trim? Obviously it will need to come off to install the new plenum valve assm.

Thanks!
-Tim
67 RS/SS Vert C-1 797-Z LOS
EXDL 2EMGR 3SL
4P

Petes L48

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Re: AC plenum valve
« Reply #1 on: April 03, 2021, 10:10:19 PM »
If you search the Heating & Cooling section at the TC site with key words , there are numerous discussions.  As this one mentions, check out the 67 Chassis Service Manual for an overview of how the system works.

https://www.camaros.net/threads/ac-vacuum-controlled-dampers.280601/#post-2425665

I think the grill should come out, but first lay down masking tape so no paint gets scratched.

CantRepeat

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Re: AC plenum valve
« Reply #2 on: April 04, 2021, 10:24:15 AM »
Thanks.

Like most forum search engines, I wasn't getting many fruitful results.
-Tim
67 RS/SS Vert C-1 797-Z LOS
EXDL 2EMGR 3SL
4P