R-12 AC question

[66cayne]

R12 is readily available on Facebook marketplace by the can or cylinder. Most guys are asking $40-$50 per 12-14oz cans, so its not cheap. You will need about 60oz for the average '60s based system. If your system has not run for some time I would recommend flushing the system and pulling a vacuum to be sure it is not leaking. Replacing the dryer is also a good idea. All in all, just standard maintenance to the system. Converting your system to run 134a is much more involved and costly. Nothing cools like good old R12 in an original system.

[67since67]

Good idea to replace the front seal in the A6 compressor also, notorious leak.

One of mine, replaced the seal and dryer, evac/recharge with R12 3 years ago, blows ice cold.

[Camaro Dave]

Where did you get the front seal from?

Can't beat R12 for freezing yourself out of the car

Originally Posted by 67since67

Good idea to replace the front seal in the A6 compressor also, notorious leak.

One of mine, replaced the seal and dryer, evac/recharge with R12 3 years ago, blows ice cold.

[67since67]

Originally Posted by Camaro Dave

Where did you get the front seal from?

My old school a/c guy brought it with him. If they are hard to find I can ask him.

[parkbrau]

Originally Posted by Camaro Dave

Where did you get the front seal from?

Can't beat R12 for freezing yourself out of the car

I was looking into replacing the seal on my A-6. Never got around to it. While looking I found this:
"Here's a tidbit that a lot of folks aren't aware of. I like to pass it along to guys who have A6 compressors in their cars.
There is a double lip neoprene shaft seal available that will backfit to the A6 compressor. It solves the problem of the old type ceramic/carbon seal seeping oil and getting it all over your hood, inner fender, etc. It's also more reliable than the mechanical seal for refrigerant retention.
The part numbers are ACDelco# 15-30948 or, GM# 2724954 The seal is actually for newer HR6 and V5 compressors, but works great in the A6.

Tom


Go to autoacforum.com and do a search for .a thread titled "GM A-6 Compressors, Rebuilt?" There is an illustration that shows a cutaway of the A6 seal area and tells where to install the seal. It actually fits into the area where the seal "seat" used to sit.
You remove all of the old seal components, install the oring into the seal bore, install the seal, then install the snap ring. You'll only use those 3 parts from the new seal kit. "
That post was on a buick forum.


https://www.carparts.com/a-c-compres...elco/ac1530948