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

[Britt Griffith]

If you have new hoses, go with R-12. R-134a will leak through "virgin" hoses
intended for R-12, in theory. This is because R-134a is a smaller molecule
than R-12 and the rubber hoses are porous. However, if the car has old
hoses, you can use R-134a and it probably won't seep out. This has to do
with the mineral oil used in R-12 systems acting as a protective "layer" in
hoses and other parts. In practice, it also protects rubber components that
were initially thought to be susceptible to degradation by R-134a.

I would replace the mineral oil in the compressor with an R-134a compatible
oil now. R-12 is compatible with both oils, but R-134a is not compatible
with mineral oil. It's been a while since I've done A/C work, but I seem to
remember that if you want an R-134a system to work correctly, it should have
less than 5 to 10% mineral oil in it. You'll need to change out the oil on
your system a couple of times to get to this level if you do go to R-134a
someday. You might as well do one change right now and run the system for a
while.

Britt Griffith
Corona, CA
65 Monza Coupe

-----Original Message-----
From: Rick Loving [mailto:ral1963 at comcast.net]
Sent: Monday, July 11, 2005 11:41 AM
To: virtualvairs at corvair.org
Subject: <VV> New Corvair in the stable..Now have turbo AC questions


Well I broke down and bought the 66 AC Turbo Corsa clone that was on
Ebay that was the topic of discussion last week.

I had almost bought the car when it was listed on the Classified's a few
months ago but didn't as I was shopping for a house based on a pending
move.

So here I am, the soon be proud owner of a very, very, nice rust free 66
factory AC Monza that has been tastefully cloned into a 66 Turbo Corsa
thru the handy donation's of the necessary items from a 65 Turbo Corsa.

The first issue that I have to overcome is the fact that the AC is only
90% complete, but missing a very important part.  The condenser is not
installed as the turbo sits where it should.  I have the option of the
front trunk mount of the rear fender well mount.

I am almost 100% positive that I will be going with the rear fender
mount and using one of the modern fan cooled condensers but was looking
for a any suggestions out there from the group.

The car the complete stock 66 system installed and plugged up at the
connecting point of the condenser.

I was figuring on using R-12 at this time and in the future switching
over to a Sanden compressor and upgrading the system for R-134 at a
later date, what's the groups thoughts?



Rick Loving




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