[DMCForum] Re: A/C squealing (Converting to R134)

["content22207" <brobertson@xxxxxxxxxxxx>]

I've had absolutely no problem with R134 in the DeLo (I think the
compressor bearings died from age and sitting idle).

R134 in the Lincolns does not refrigerate at idle. Could be slow
compressor speeds (500-600 RPM). Could be inadequate air flow over the
condensors (engine fans, not electric). Could be pressure problems
from suction throttling valves designed for R12. Whatever -- as soon
as the cars are moving it will freeze you out.   

I put that adapter on the low side only. All my A/C work is done on
the low side, so I really see no need for the big one.

Bill Robertson
#5939

>--- In DMCForum@xxxxxxxxxxxxxxx, "timnagin" <timnagin@xxxx> wrote:
> To continue my saga, when the compressor went on my other truck I had it
> replaced with a new one from Nissan.  They added the R-134A
conversion kit,
> which I think consisted only of adapters for the schrader valves.
> 
> I have been running R-134A in that truck for about two years with no
> problems, and on almost all of the original non-barrier hoses.  One was
> replaced with a new hose but is still non-barrier.  A guy at the
dealership
> converted his 280Z to R-134A with no modifications whatsoever and
hasn't had
> problems either.
> 
> I was also told it could be about seven degrees warmer.  If memory
serves,
> human skin can not detect anything three degrees or less of a
difference.
> That truck will have your teeth chattering sitting in idle traffic
on the
> interstate, with no problems.
> 
> Greg
> 
> 
> 
> -----Original Message-----
> From: DMCForum@xxxxxxxxxxxxxxx [mailto:DMCForum@xxxxxxxxxxxxxxx]On
> Behalf Of Ryan Wright
> Sent: Tuesday, May 10, 2005 7:46 PM
> To: DMCForum@xxxxxxxxxxxxxxx
> Subject: Re: [DMCForum] Re: A/C squealing (Replacing Freon)
> 
> 
> Bill -- I converted (err, paid a shop to convert) my first Fiero to
> 134-A and never had a problem with it. It was nice and cold. Others
> who converted theirs always complained about it not cooling as well as
> R-12. I think the difference is like you said, "a system designed for
> it." Most of my system was replaced, including the compressor, with
> parts designed for 134-A.
> 
> I wouldn't mind doing the same on my DeLorean, but I don't want some
> random shop doing the work and don't know how to do it myself. Maybe,
> if I get into your neck of the woods some day, we can have a chat
> about that... ;)
> 
> -Ryan

---

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