[s-cars] [urq] Good news for R12 A/C people

[Chris]

I'm pretty sure that ours is technically considered the mini york for when you're searching. 

On Jul 8, 2013, at 18:22, Steve Mills <s.b.mills at gmail.com> wrote:

> I sourced a Sanden rotary compressor and adapter bracket from eBay, but there are plenty of vendors selling York replacement kits- just do a Google search on York and Sanden and you should get a number of hits. 
> 
> On Jul 8, 2013, at 9:22 AM, Steve Marinello <smarinello at entouch.net> wrote:
> 
>> Been trying to find that solution myself, John.  My mini York gave up and
>> no one will rebuild it, so I figure it's time to go with the compressor
>> conversion.  I think they are not that difficult to come by, although I
>> don't remember the name right now, but the mounting bracket and other
>> fitting mods are another story.  Somewhere on a long dead computer, that
>> information exists, but it's probably outdated by now.
>> 
>> But at least the RS24 seems to be a great path to go to.  Thanks, Dave.
>> 
>> 
>> Steve
>> 
>> 
>> On Sun, Jul 7, 2013 at 11:27 PM, John <johnkarasaki at msn.com> wrote:
>> 
>>> Hey Dave,
>>> 
>>> This is great information. Thanks!
>>> 
>>> On a related note, do you know of a lighter, smaller, more efficient
>>> compressor to replace the heavy York urq compressor.
>>> 
>>> John
>>> 
>>> djdawson2 at aol.com wrote:
>>> 
>>> 
>>> 
>>> 
>>> Always been a quandary what to do with R12 cars as the refrigerant becomes
>>> less available and more expensive.
>>> 
>>> I've never been a fan of converting R12 systems to R134... the pressure
>>> set points on the R12 system compressors and the phase change points for
>>> the R134 refrigerant are not optimally compatible, leading to less than
>>> great performance overall.  On top of that you have to go through the
>>> exercise and expense of changing out all your o-rings and attempting to
>>> purge all of the system's non-compatible oil, sometimes hoses, etc...
>>> 
>>> In the past, a drop-in replacement has been a product called Autofrost,
>>> also known as R406A.  I've used this product over the years, and it
>>> performed quite well.  Additionally, it could be used to top off a low
>>> charge situation without removing the old R12.
>>> 
>>> I recently depleted my remaining supply of the R406A, and when I attempted
>>> to order another cylinder, I found that it was no longer available.  The
>>> supplier advised that I try RS24, also known as R426A.
>>> 
>>> I had just received my cylinder of RS24 when a fellow lister (Justin
>>> Riley) needed some help with the A/C in his freshly renovated '85 urq.  He
>>> had just replaced his receiver/dryer and compressor.  We evacuated his
>>> system for about an hour, and then charged it with the RS24.  Very quickly
>>> we were seeing vent temps in the 33-37 degree range, depending on engine
>>> speed (a little more speed = colder).
>>> 
>>> Bottom line - impressive, and a viable alternative to those with R12 cars.
>>> 
>>> You can read up on RS24 - but here are some highlights:
>>> 
>>> - You can NOT top off a low R12 system with the RS24.  It must be
>>> completely evacuated and recharged.  Very strongly recommended that you
>>> replace the receiver/dryer when doing this
>>> - You do not have to worry about oil compatibility
>>> 
>>> You can go here  http://www.rscool.com/RS-24.html ; to see the product
>>> charts, MSDS, etc..  Also available is a pressure chart which shows
>>> performance side by side of R12, R134, and RS24... clearly indicating why
>>> the RS24 is a far superior solution to converting to R134.
>>> 
>>> Anyway... thought this might be interesting to folks like me - with a
>>> garage full of R12 cars.
>>> 
>>> Dave
>>> 
>>> 
>>> 
>>> 
>>> 
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