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Date:         Thu, 3 Jul 2003 09:52:59 -0500
Reply-To:     Owen <olists@THEBRANDS.ORG>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Owen <olists@THEBRANDS.ORG>
Subject:      Re: R134a in 88 Weekender.
Comments: To: John Connolly <john@AIRCOOLED.NET>
Content-Type: text/plain; charset="iso-8859-1"

ACK! What would I do without this list. Thanks for heading off a near disaster.

Guess I will hold out for my excessively late mail lady and just put the Red Tek in if it gets here. Otherwise we can just bake to the hill country.

Owen ----- Original Message ----- From: "John Connolly" <john@AIRCOOLED.NET> To: <vanagon@GERRY.VANAGON.COM> Sent: Wednesday, July 02, 2003 10:07 PM Subject: Re: R134a in 88 Weekender.

> Just a word of warning; most R-12 and R-134a comes with oil (lubricant) in > the proper proportions pre-mixed in the can. THE OILS ARE NOT COMPATIBLE. If > you put in R-134a without a complete oil change (the compressor contains > 5-7oz of oil) and system flush, you made a major boo-boo. Ask me how I know. > > the systems are compatible with one another, but it requires a time > consuming system flush (I used a flush kit, and Mineral Spirits, along with > my air compressor). You have to take everything apart, and replacing the > o-rings is a wise move since they are already apart. Replacing the expansion > valve and dryer ( a good idea, and a MUST, respectively) round out the job. > THEN you can put your lubricant and refrigerant of choice into the system, > following the proper charging procedures (vacuuming out the system, then a > charge). > > If you mix R12 and R-134a oils, you will more then likely find out why this > is not a good idea. The combination does nasty stuff to the dessicant in the > dryer, and the resulting system contaminants will destroy you compressor in > short order. Like I said, ASK ME HOW I KNOW. > > John > Aircooled.Net Inc. >


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