Re: Air conditioning and R134a

[rdowling <rdowling@bellsouth.net>]

Ken Greenlaw wrote:
> 
> Three words: don't do it.
> 
> R-134a is a product of a lot of research by General Motors that resulted in a > refrigirant that requires a higher operating pressure and doesn't cool as well as > R-12.  Besides being incompatible with the O-rings and oil in your system, it just
> won't work  as well.  If you thought your system was marginal in its efficacy before
> and didn't like the way the A/C killed your engine's performance, wait until you try
> R-134a.

 Interesting that you should make these claims. The papers that came
with the 134a conversion kit I used, said to fill the system only to 80%
capacity. (sounds like lower pressure to me) It also cools better than
the old system did on a full charge of r-12.
I can say this because the system was running on r-12 just a week
before... Full charge
too. We converted after a hose blew off... Damn stripped screw.

 Go for 134a, but DO change the seals & replace the oil. Even though we
didn't and aren't having trouble, doing so will virtually guarantee
trouble-free operation. Also, r134a is cheap cheap cheap and very easy
to find.

 Ray - '81_S
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