[V8] R12 to R134

[Bob & Missy]

I have converted all my systems to R134 and no longer have a use for it, but
still have several cans left.  Does anyone know of the legality of selling
or giving it away in CA?

When I've done the R12 in the past, I used an old compressor from a
Kelvinator and I would just leave it plugged in for a couple of hours.  It
would draw 26" and IIRC 30" is a perfect vac(?)  If it held that for 24
hours, I'd know the system was ready to be filled.  Anyway, it always seemed
to work well.  To do it yourtself, you really need quite a few tools
including a manifold gauge kit, scale, adapters, leak detector, seals, etc.
I would always add a little refrig. oil, but it's hard to know how much is
in there and how much has leaked out.

When doing the 134 conversion, I change the accum/dryer and all the o-ring
seals.  The seals for 134 are a different color (green)/material than the
R12 seals.  To change these seals can be a pain because the connectors are a
pain to break apart.  Lube the seals with refrig oil when installing.  You
also want to get the oil out and that actually proves to be the difficult
part.  I've heard there is a flush that can be used, but haven't used it.
Since the whole system needs to come apart to replace the seals, I just try
to clean out the oil then.  It takes about 5 hours to get the condensor core
out to do this in the BrandX cars I was doing.  There are kits for doing the
conversion, but they looked like cheap junk to me so I always bought OEM
where I could.  I've done 2 conversions.

	-- Bob

> -----Original Message-----
> From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com]On Behalf
> Of rudedog714
> Sent: Friday, June 11, 2004 11:46 AM
>
> Hi John, R-12 is expensive if you can even find it. To convert to
> R-134 you need to put a vacuum on it and totally evacuate the
> system before you put in the R-134. However, if you're system
> pressure's down to where you're blowing hot air you'll need to
> find your leak first.The system should hold that vacuum after
> it's put on to evacuate the R-12. The freon just doesn't wear out
> and shouldn't lose pressure unless you have a leak somewhere.
> Good Luck, Bill