<VV> New Corvair in the stable..Now have turbo AC questions

Norman C. Witte ncwitte at wittelaw.com
Mon Jul 11 20:22:43 EDT 2005


Craig, I've never owned or ridden in an air-conditioned Vair, but my
understanding is that the AC system was more than enough to cool our small
cars.  That being the case, is it fair to say that the loss of efficiency in
going from R12 to R134a is not very noticeable?

Norm

> -----Original Message-----
> From: virtualvairs-bounces at corvair.org
> [mailto:virtualvairs-bounces at corvair.org]On Behalf Of NicolCS at aol.com
> Sent: Monday, July 11, 2005 8:00 PM
> To: virtualvairs at corvair.org; ral1963 at earthlink.com
> Subject: <VV> New Corvair in the stable..Now have turbo AC questions
>
>
>
> You don't have to install new hoses, Rick.  Used "old-style"
> hoses  seal 134a
> well because their porosity has been reduced by the old R12
> mineral  oil.
> A/C technicians have discovered that old R12 hoses don't
> have to be replaced
> for a 134a conversion.  Your delco A6 compressor will  work
> just fine on 134a.
> IMHO, replacing the expansion valve is somewhat optional
> too, depending on how
> it performs.  I have only had to change the EV on a  few of
> the conversions
> that i've done.  OTOH, your drier will have to  replaced in
> any event - they're
> only good for about 30 minutes exposure to air  and they're
> all done.  Having
> said all that, the R12 does cool better and  the old mineral
> oil does a
> better job than E100.  If it were my car, I  would go with the 134a.
> Craig Nicol
>
> My plan  to start with R12 was that I didn't want the expenses of new
> drier, hoses,  compressor, and expansion valve that currently
> exists with
> the  system.
>
> I have friend who is licensed and does all the R12 work for
> the  old cars
> around here.  R-12 cools much better and I was going to run
> it until it
> wasn't possible any more.
>
> Am I really in the better  situation to switch over now to 134 or am I
> better off going the R12  now?
>
>
>
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