HVAC Vacuum Valve Clip-need the one for the Power Control side

Hi.

Update:

I removed both 7 nipple vacuum valves and called my buddy who owns a machine shop. Tomorrow we'll re-surface the valve faces and then I'll reinstall them. HOWEVER, the one that comes out easily and comes apart with no rivet is on the Power module side. It installs on one side with a small bolt, and on the other it is held on by a clip, WHICH IS MISSING ON MY CAR. I am going to assume it is the same clip that is used on the Control Module side. Anybody got one? Happy to pay for it. 

Thanks

Norm 

Views: 712

Comment

You need to be a member of 63/64 Cadillac Website to add comments!

Join 63/64 Cadillac Website

Comment by Norman Silverman on October 14, 2018 at 1:15pm

Don't personally know Tony, nor his age but I entered the service in 1969, so I'm likely older than you. (I get the respect thing).

Comment by Norman Silverman on October 14, 2018 at 1:02pm

Interesting, Clovis.

I admire people like you who like to utilize modern day knowledge and technology to improve the performance of our old machines. My perspective is a little different.

I could never do half the things I do now when I was a kid because I had no patience to understand the underlying technology, nor to take my time to perform the repairs. So, I now take great joy in being able to understand and operate in this "yester-tech" environment because it gives me satisfaction to finally master it as it was designed to operate, warts and all. 

Oh, about the "sir" thing; I was enlisted (true) so you don't have to call me "sir"!

Comment by Norman Silverman on October 11, 2018 at 1:12pm

Thanks for the heads-up.

Actually, I'm what you'd call a "Strict Constructionist" so I'm ok with rebuilding what originally came with the car. Everything usually fits better, too. 

Comment by Norman Silverman on October 10, 2018 at 2:35pm

Update: I sent my Power module and a spare Transducer in to Classic Auto Air in Florida. Rebuilding BOTH parts comes to around $200. Hopefully, the hurricane won't hit them and I'll get my stuff back in about 2 weeks, working like new. Fingers crossed.

Comment by Norman Silverman on October 1, 2018 at 1:21am

I won't tell you how old I am, but I will tell you that when I hear the word "NIKE" I think of a missile, not a shoe. (google it)

Comment by Norman Silverman on September 30, 2018 at 9:53pm

It was a moment of triumph (I hope). I very much enjoy the comments, encouragement, knowledge (and even the occasional ribbing) from members. While I have had lots of Caddies with Comfortron (2 65's; 3 66's; 2 67's; 2 68's) I owned them mostly long ago, when the Comfortron systems worked perfectly, so the most I ever had to do was on one of my 67's where removing the vacuum restrictor restored operations to new. More on this project when I have it to report.

Comment by Norman Silverman on September 30, 2018 at 8:12pm

Agreed. Only thing is the Heat/AC door is actuated by the Power Servo, not its own solenoid. As I became more familiar with how this system works, it slowly dawned on me that its malfunction was a possibility. When I disconnected the power servo arm from the Heat/AC door rod and moved it manually I saw that it had LOTS more travel in it than what I observed when the power module moved it. That was the key. 

Comment by Jason Edge on September 30, 2018 at 8:09pm

As much as I respect Tim Groves Diagnostics book, the very 1st thing I will do when I do my "deep dive" into my Comfort control system is test ALL vacuum actuators and vacuum components before I do anything.  This will include the mode door actuator, recirculation door actuator, power servo diaphragm, transducer, and Suction Throttle Valve. If any of these will not hold 15 to 20 inches of mercury it will not matter if the power servo or dash control rotary valves are good or if you have replaced the old loose fitting vacuum  hoses with new nice tight-n-snug hoses. I would say 95% of the recirculation actuators I have brought in have been busted, 2/3's of the STV's, transducers and power servos do not hold vacuum. Only the mode door actuators tucked away inside the air box, is the only one that seems to have a good survival rate!

Comment by Norman Silverman on September 30, 2018 at 8:07pm

In short, yes; but it holds a certain amount of vacuum before it won't hold enough to travel to all positions required. It was your post that got me thinking about what the system would be doing in this weather. It occurred to me that if it was already warm in the car, the most I would get out of the heater setting would likely be LOW fan on heat-because the sensors already detected the hot air in the car. So, as I watched the arm travel from AC to Heat, I realized it was not traveling very far. Then, I disconnected the traveling arm from the heater/ac door rod and moved it manually; it resulted in an air stream where I needed it. So, I took the power servo (thanks) off to see what would happen if I fed it the correct amount of vacuum (10 in) with my pump and took off the protective cover so that I could watch the arm go to each of its required electrical stations. It won't. The spring tension it has to fight in order to get to the last 3 or 4 stations is so severe it cannot overcome that tension with vacuum-partly because it is a strong tension and partly because I think it has a tiny leak, but just tiny enough to let the bellows retract a bit before it stops responding. So now I am going to concentrate on getting the power module rebuilt and sealing the leak in the plenum. Thanks!

Comment by Norman Silverman on September 30, 2018 at 5:46pm

EUREKA! I'VE FOUND IT!

The Power Module will not cycle past the first two positions no matter how much vacuum is applied.The spring tension on the arm is so great, the bellows cannot overcome it.  This and a leak around the main duct seal appear to be the  culprits. Now, to have it repaired.

Photos

  • Add Photos
  • View All

Forum

Modern radio antenna …

Started by Mack in 1963/64 Cadillac Specific Discussion on Tuesday. 0 Replies

Just replaced radios for the modern radios with Bluetooth and all the dance things and wanted to share how I went around the antenna knob… I’ve installed a regular two way GM window switch in the…Continue

BOOT

Started by John Inglesby in 1963/64 Cadillac Specific Discussion. Last reply by Marty Smith on Tuesday. 1 Reply

I recently purchased a new boot for my 64 convertible and was wondering how difficult it s to install. I'm not very mechanical. It looks like the chrome piece behind and at top of seats needs to be…Continue

63 Exhaust Hanger Mystery

Started by Mike Travers in 1963/64 Cadillac Specific Discussion. Last reply by Cees de Bunje on Monday. 8 Replies

I'm in the process of installing a stainless steel single exhaust from Classic Exhaust on my '63 Coupe de Ville. I'm running into a mystery regarding my middle exhaust bracket. I have the bracket…Continue

TH400 Dipstick Tube Seal

Started by Logan Robb in 1963/64 Cadillac Specific Discussion. Last reply by Logan Robb on Monday. 9 Replies

In my “rebuild” of the transmission, I ordered a dipstick tube seal. However, I’m not sure if the right one came or how to best install the seal. I am wondering if anyone has replaced this seal OR…Continue

Blog Posts

Loud air moving sound within carb with cleaner removed

Posted by Dave Fehrle on March 23, 2024 at 3:23pm 8 Comments

While checking my Carter carb with engine running, I took the air cleaner off and there was a very loud hissing sound of air. I placed a piece of paper over the carb and it didn’t move up or down, is this normal?

Vintage Air AC

Posted by Chase on March 21, 2024 at 5:55am 0 Comments

Hey everyone, has anybody done a Vintage Air AC/Heat setup in their car? I want to bypass the old vacuum setup and go with a Vintage Air Gen 2 model. Before I get started, does anyone have any experience with this? (Which model to go with, do’s and dont’s, etc.) It looks pretty involved. Any and all info/pics would be greatly appreciated. Thanks!

accumulator dryer

Posted by CHRIS CARLSON on December 6, 2023 at 10:54am 0 Comments

Who rebuilds original AC  accumulator dryers for 1964 Cadillac? I have been on Classic auto air in Tampa FL wait list for over a year ,  There is one on Old air products web site that looks very similar to the original # 21-4214A but states it fits 1962 Gm cars, The one recommended for a 1964 Cadillac is half the length 21-4215A    What  is everyone using ? I would prefer to be as original as possible. Thanks

'63 Eldorado trumpet horn + 2 standard horns restoration

Posted by Les Eastling on November 15, 2023 at 10:34am 1 Comment

My son, unbeknownst to me, had all three of the horns on our 1963 Eldorado completely restored. We had recently added the Eldorado trumpet horn to the two standard horns and the sound was not very good... we had heard good ones so we knew something was not right... but there was not much we could do to get better sound from the 3 horns. 

There is a restoration service called The Horn Works who my son…

Continue

Videos

  • Add Videos
  • View All

© 2024   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service