AC conversion again!

[Marc Levy <malevy_nj@xxxx>]

For what must be the 20'th or so time on this list.. 
YOU CANT MIX R12 and R134! Especially the OIL'S!

If you are switching between freon/oil types and do
not completely FLUSH the old oil out of the system
(there is a specific machine and chemical for this
process.. it is not the same as a regular evacuation),
you will eventually clog the system and destroy the
compressor. Yea, it will get cold for a year or so...
but in the long run your looking at expensive
repairs.

There is a new oil out that is compatible with both
R12 and R134, but your 1981-83 system has the old
fashion R12 style. If you convert it improperly, your
looking for trouble.


--- content22207 <brobertson@xxxx> wrote:
<SNIP>
> Hopefully will drop as passenger compartment cools
> down. Since we're
> entering A/C season, my R134 methods are written up
> on DMCNEWS website
> for like minded. Generate a lot of controversy among
> R12 purists, but
> the way I figure: if your system isn't putting out
> now, what do you
> have to lose? Only change is freon itself (all
> factory components
> re-used). If you don't like R134 performance, bleed
> it back out and go
> back to R12. Difference is about $120 (to R134's
> benefit)...
> 
> Bill Robertson
> #5939
> 


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