Date:         Mon, 22 May 2000 16:11:13 EDT
Reply-To:     kenneth d lewis <kdlewis@JUNO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         kenneth d lewis <kdlewis@JUNO.COM>
Subject:      Re: A/C  refrigerant oil quantities
Comments: To: Calwolfie@aol.com

Kevin;
        I was unaware there was a difference (r-12 vs. R134a) in
compressors. You can purchase a container  of fluid especially designed
to flush r-12. Use compressed air to push it through.
        I found a local shop to crimp the old hose ends onto new rubber
for about $1/foot.

Drive Safely & Good Luck
Ken Lewis    <Kernersville,NC>
86 VW crewcab;60 356B Coupe
--------------------------------------------------

On Mon, 22 May 2000 13:01:14 EDT Kevin Dawson <Calwolfie@AOL.COM> writes:
>Hi,
>What if I want to up grade to R134a?  How does one flush out the old
>lubricant (since the lube for R-12 and R-134a is different and
>incompatible)?
> I recently pulled a radiator/condser assembly out of a Vanagon and
>was
>surprised at how much lubricant was "up front."  I'm going to be
>interfacing
>the Vanagon's A/C system to my new Subaru engine/R-134a compressor.
>Kennedy
>(who is a nice guy, I drove up to his shop to meet him last week)
>never
>connected the two systems together as he couldn't find a local shop
>that
>could make up the hoses needed.  He's up in the high desert where
>there is
>just not the same available resources as there is in the Orange/Los
>Angeles
>basin.  I'm just getting to this part of the project.  Also, in
>reading up on
>A/C systems, Vintage Air, of Texas, says that the Hoses used for
>R-134a
>systems has an extra barrier as the gas will permeate through hose
>used for
>R-12.  The VW service bulletin on R-134a upgrade doesn't address this
>issue,
>is that because the cost would be prohibitive?  Or is this it a
>non-issue
>with the Aero-quip hoses that were used on the Vanagons?  If the gas
>does
>seep through the hoses, how often should one expect to have to
>check/add gas?
> Has anyone worked through any of these issues?  I've read many times
>of
>Ken's recommendation of using Freeze 12 and if I was going to use a
>R-12
>compressor I would explore that route.  Since, I have a R-134a
>compressor I
>would rather stick with the R134a. Thoughts anyone?
>
>Cheers,
>Kevin Dawson
>87" Wolfie 1/2 Camper

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