[AT] Air conditioning problems In my parts getter...

[BRUCE MAHR]

I agree

Bruce 

----- Original Message -----
From: Brad Loomis <brad.loomis at gmail.com>
To: Antique Tractor Email Discussion Group <at at lists.antique-tractor.com>
Sent: Sat, 12 Jun 2021 12:45:37 -0400 (EDT)
Subject: Re: [AT] Air conditioning problems In my parts getter...

134a may have been close to R12, but I replaced more 134 compressors than
you can shake a stick at. It doesn't do high head pressure like 12. Dirty
condensers killed a lot more 134a units than ever died with12. And in the
early days of 134, auto a/c sucked under any kind of load. I referred to
134a as cat piss. I don't miss any of that at all. But again I did
commercial refrigeration for 30 years which is a bit different than
automotive.

On Sat, Jun 12, 2021, 8:55 AM Steve W. <swilliams268 at frontier.com> wrote:

> Cecil Bearden wrote:
> >
> >
> > R1234y, and it is expensive.  I imagine it is developed by Dupont and
> > they need to get their money back.  The patents ran out on 134, so they
> > had to bring in something expensive again.  It is also flammable, So,
> > why couldn't propane be usuable for refrigerant??  It is also
> > flammable..  But a lot cheaper....
> >
> > Cecil
>
> Now Cecil, you can't say that, they brought out R1234YF to save the
> planet for the little children.  Just because the patent expired on 134A
> and Dupont was pushing to replace it with the newly patented material
> had nothing to do with it. Shame on you for thinking they only want the
> money, it's to save the planet...  LOL
>
> This question actually came up at one of the classes on this crap a
> while back, the "Save the planet" answer was the party line, but most of
> us had been through the same BS back when R-12 was dropped and commented
> that at least then Dupont was honest and said that they were pushing
> R134a due to the patent issue.
>
> The one trick is that if the price on the 1234yf doesn't drop a lot,
> there are likely going to be many conversions to R134a. If you pull the
> R1234yf out, fully flush the system and swap out the drier to be sure
> you got all the oil you can recharge with PAG and R134a and have the
> system work just fine as the two are almost identical in operational
> characteristics.
>
> Just don't get caught because the EPA has tagged R1234yf differently,
> it's now considered as part of the emissions system on the vehicles that
> use it because the companies were handed carbon offsets for using it. So
> swapping it out is now a violation of the Clean Air Act.
> The fines start at about $10,000.00 after they are done dragging you
> through the system.
>
> As for propane, there was an Australian, Ian MaClaine-Cross pushing his
> hydrocarbon based replacement as a drop in for R12 who managed to blow
> himself up on camera, during a demonstration showing just how safe it was.
> https://www.youtube.com/watch?v=k0K1WPCWm2k
>
> The resulting charges over it -
> https://vasa.org.au/wp-content/uploads/2011/11/2005-May.pdf
>
>
> Other MACS demonstrations of the same type -
> https://www.youtube.com/watch?v=FO47SzxJmV0
>
>
> --
> Steve W.
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