Pinto Car Club of America

After of hours trying many fastners this 1 worked to hold silicone selecter plate and ajust center screw just untill it stops leaking vaccum. Drilled plastic rachet plate with #30 taped with 8-32 instaled 1 and 1/2 " brass freeze plug that was 3/8" deep to put pressure on outer edges of disc. Hooked the blue vaccum pump up and all doors work properly. 90% of all my A/C controllers the disc has fallen off, a lot of people see this on floor they dont know what it is so they toss in trash.  Fred   :)

Thanks Fred! I will keep this in mind if I need to repair the A/C controls for the 73 Wagon. I ordered new vacuum valves which arrived yesterday, hopefully that's all that is wrong with it. Right now the only options that work on the climate controls is warm or cold. The only outlet that works is the defrosters.

Fred, what does this disc look like?

Dave bad news is all your vaccum diaphrams are good from what you described the disc is missing, check on floor underneath controller.  Fred   :)

How about the center white bushing that goes in the middle of the metal plate with the silicon pad on it? How do you keep that in place? Is it supposed to stay stationary and move with the metal disc?

I'm going to repair my A/C controls and want to do it this way but not entirely sure of your explanation of the fix.

Well I tried your fix, it still doesn't seem to be working. How tight should the lever be once the screw is tightened?

EDIT: Got it working! Thanks so much Fred! :D