Any one know anything about A/C?

[fahrvegnugen at cox.net (David Utley)]

Well, I have to disagree...  The two core buyers that come by looking for
compressor cores and I agree, compressors were much more likely to go to
shiesse when R134 was introduced.  It is something about when moisture gets
into the mix with R134 and its oil, it becomes corrosive.  What's more is
the compressors have to run at MUCH higher head pressures (50% IIRC), and
the condensors and evaporators are not the same.  They will each work in
their conterparts systems, but not as well since they were not designed
to...

I can't find the link with a lot of specific evidence that demonstrates
R134s faults, but I did find a few with 'R134' & 'Corrosive' under a search
on Google...

BTW, I should mention that the compressors I mention, nearly all are Sanden.
Also, most of these AC systems have not been touched since new.  Approx. 10%
had their clutches shear away and go dancing down the road.  To me, all this
spells corrosion...

HOWEVER, I will try to find that link...

David

-----Original Message-----
From: Chuck Blue [mailto:sukchew@cox-internet.com]
Sent: Saturday, June 18, 2005 12:53 PM
To: David Utley; Timbo; Scirocco list
Subject: Re: Any one know anything about A/C?

I can't believe you replaced 250 compressors because the had R134 in the
system.There must have been some other reason.
  I am not a AC expert but my experience with daily work on recovery
machines has not borne out your statement.
If the AC system is properly set up and charged R134 will work as good as
R12 with the possible exception of cooling at idle.If your AC is making cold
air it don't matter what is in the system.
my .02 worth.
ole blue

----- Original Message -----
From: "David Utley" <fahrvegnugen@cox.net>
To: "Timbo" <timjmcconnell@gmail.com>; "Scirocco list"
<Scirocco-l@scirocco.org>
Sent: Sunday, June 19, 2005 12:01 PM
Subject: RE: Any one know anything about A/C?


>
>
>
> -----Original Message-----
> From: scirocco-l-bounces+fahrvegnugen=cox.net@scirocco.org
> [mailto:scirocco-l-bounces+fahrvegnugen=cox.net@scirocco.org]On Behalf Of
> Timbo
> Sent: Saturday, June 18, 2005 10:30 AM
> To: Scirocco list
> Subject: Any one know anything about A/C?
>
> Specificly - I think there is enough there of my dealer installed a/c
> to make it work. It needs to be recharged - so there's no pressure. Is
> there a way to make the clutch of the compressor snap on to test it?
> (there's no belt on right now)
>
> Also - Will I regret going rf134a? anyone got some r12?
>
> --Timbo
>
> --
> Put 12V to the connection you see hanging off of it, that is the
> connectoin
> for the electro-magnetic clutch.  Be sure to get them the right way
> around,
> I dunno if it would cause damage or not, but...
>
> R134 is highly corrosive, we replaced 250 compressors last year, and 95%
> of
> those were for A4 bodied cars.  Stick with R12, there is no proof that it
> is
> harmful to the environment except Duponts word (when they were about to
> lose
> their patent on it)...  If you are interested, I will find more links to
> support my claims...
>
> David
>
>
>
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