[Vwdiesel] R12 replacement

[Shirley, Mark R]

True.  But if you're worried about the specifics of conversion to R134A, 
that usually implies you're doing the work yourself, in which case you wouldn't
care about what the shop is worried about.  And there are some shops
out there equipped to work on Autofrost among others.  I think there's a 
list on the Autofrost site somewhere.

> -----Original Message-----
> From: Doyt W. Echelberger [mailto:doyt at mail.buckeye-express.com]
> Sent: Wednesday, March 16, 2005 9:30 AM
> To: Shirley, Mark R
> Cc: vwdiesel at audifans.com
> Subject: RE: [Vwdiesel] R12 replacement
> 
> 
> Be aware that using these alternative substances puts you on 
> your own for 
> commercial service to your system.
> 
> Commercial shops test your system to be sure it isn't 
> contaminated with 
> things like AutoFrost, etc. If they find it, they ask you to 
> leave. It 
> contaminates their draw-down equipment.
> 
> As a result, if your system contains anything except R-134a 
> or R-12, you 
> will be treated as an unwelcome customer. Getting anything except the 
> specified substances into their draw-down machines would disable the 
> machines until they had been "sterilized." The machine would 
> be down for 
> the day. Nobody can afford that kind of extra downtime.
> 
> The above information is paraphrased from conversations with 
> the owner of a 
> commercial air conditioner shop that specializes in 
> automobile systems.
> 
> Doyt Echelberger
> 
> 
>  >>>>>>>>>>>>>>>>>>>>
> At 08:20 AM 3/16/2005 -0500, you wrote:
> >For the best true drop in, check out R-406A, AKA Autofrost.  
> True drop in.
> >
> >There are some long term durability issues with R134, and 
> propane mixtures
> >tend to leak as the molecule is much smaller.  I did 
> extensive research on 
> >this
> >back in the mid 90's, and Autofrost was one of the better 
> R12 retrofits.
> >
> > > -----Original Message-----
> > > From: Shalyn Shourds [mailto:sshourds at flash.net]
> > > Sent: Tuesday, March 15, 2005 11:40 PM
> > > To: vwdiesel at vwfans.com
> > > Subject: Re: [Vwdiesel] R12 replacement
> > >
> > >
> > > 134a isn't that much harder to install.  I've not done it 
> as I don't
> > > have all the tools, but Dad has rolled over his fleet to it
> > > and as long
> > > as the system remains intact (my '85 has a blown evaporator),
> > > it works
> > > fine without having a flammable gas in the cab.  If I recall
> > > correctly,
> > > it's just some fittings and a new receiver/dryer.  Toolwise,
> > > you do have
> > > to have a new set of gauges, or at least new hoses for your
> > > old ones.
> > > Dad converted all of his cars even though he was still 
> sitting on a
> > > stockpile of R12.  Doesn't even know what to do with it 
> now.  Prices
> > > dropped because everyone's converting.
> > >
> > > -Shalyn
> > >
> > > Sandy Cameron wrote:
> > >
> > > >New thread for old volks.
> > > >Summer is comming.
> > > >
> > > >Have a look at (google ) duracool, avail. in both Canada and USA.
> > > >
> > > >Basically, it's propane with some additives.
> > > >
> > > >I think I'll try it in one of the 87's if I can find enough
> > > of the hoses to
> > > >put the system back together
> > > >
> > > >All standard disclaimers apply.....
> > > >
> > > >Sandy
> > > >
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> > > >
> > > >
> > >
> > >
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