Re: CGT radiator and A/C posts

[ejfluhr@austin.ibm.com (Fluhr)]

Guys,

Thanks for all the great responses to my questions.  There were too
many for me to answer individually, but I appreciate all of your
responses.

Quickly summarizing, an Audi replacement radiator for the CGT/4000q
costs around $225.  Chris Semple sells a non-Audi exact replacement
for $150, and there were a few used radiators around in the $40-$50
range.  The CGT/4000q radiator can be repaired, but since I have
already had mine repaired once, I will replace it with a new part
if needed.

As for the A/C, everyone agreed that the compressor would not run if
the system was too low (or empty) on freon due to a low-pressure
safety switch.  To check the system for leaks, I can either evactuate
the system and let it sit for a while with a pressure gauge, or
paritially fill it and use a detector to find any leaks.

If the compressor has self-destructed, the entire system needs to be
flushed and perhaps needs a new condensor and evaporator.  The system
can be converted to R-134a, but will stressed more (hence greater
likelihood of failure).  The conversion can be very simple and cheap,
using the existing hoses and compressor (replacing the compressor oil),
or more expensive if a new compressor and/or hoses are used.
Due to the variation in options for fixing the A/C (based on what might
be wrong), it would be difficult to determine a fixed price deduction
from the seller's asking price of $2500.

Thanks again for all your great responses.  I will keep you all updated
on my 4Kq "status" as it develops.

Later,
Eric
'85 Coupe GT
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Eric J. Fluhr                                Email:  ejfluhr@austin.ibm.com
630FP Logic/Circuit Design                   Phone:  (512) 838-7589
IBM Server Group                             Austin, TX