Was it holding R12 fine? It could be the seal in the front of the compressor
- that seal depends on a oil film to not leak. I've seen a lot of R12
systems that barely leaked start leaking a lot when converted to R134 just
because the molecule size is smaller & the gas passed through the compressor
front seal easier.

Thanks, Tom Hargrave
www.stir-plate.com
www.towercooler.com
www.kegkits.com
www.grow-sun.com

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of
JRodgers
Sent: Tuesday, May 07, 2013 3:50 PM
To: vanagon@GERRY.VANAGON.COM
Subject: AC 134a refrigerant leak down

18 months ago I had the AC system gone completely through - and converted to
R134a. It got new seals and the whole nine yards. the system ran great
through the hottest months but then began to show signs of 134a leakage by
virtue of reduced cooling. That got progressively worse. Twice I added
refrigerant, but the cooling has once again dropped off.

Givben this - obviously I have a leak.  I was wondering about the
application of one of those sealers to the refrigerant? Do they really
work??

I dropped a bundle to get this fixed, and would hate to have to do it
again.!!

Recommendations?

Thanks,

John Rodgers
Birmingham, AL

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