Subject: Re: Conversion to R-123A on My 1991 20V Turbo

Huw Powell audi at humanspeakers.com
Tue Jul 2 13:15:07 PDT 2013


> 1.) You will have some air in the system, air is not compressible

Yes it is.  There just shouldn't be any air in the system.

The problem is the opposite - the system can't liquefy air at the temps 
and pressures it operates at, so the compressor/pump can't pump it. 
Perhaps that is what the OP meant.


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