Engine Size: 350
Refrigerant Type: R12
Country of Origin: United States
Is there a way to bench test the older A6 compressors? I have a couple that I inherited from my father, but I am not sure which ones if any are good. These are probably 1966 - 1970 era. ( I don't have any numbers available yet.) The bearings are fine and clutches seem OK. They have been sealed with what looks like plexiglass caps (that I'm sure dad made). I would hate to have to charge this bad boy up to see if it will pump! Any ideas? I would like use one of these to revive the AC in a 69 camaro.
There is a test plate that can be connected to the hose ports. You can pressurize the compressor with refrigerant to check for leaks.
Thanks for the reply....
I was reading Mitch's posts on bench testing A6 compressors which makes me ask about these old "ring-gap" units. Will pressurizing with a test plate tell me the condition of the rings and/or valve plate, or will it simply show leaks? Are there any tell tale signs I should be looking for?
By far, the most likely problem is going to be leaking out the shaft seal. The A6 has a reputation for being tough internally. You can tell if it pumps at all by blocking one of the ports with your finger, leave the other one open to the air, and turn it by hand to see if pressure or vaccum forms.
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