Date: Sun, 5 Jul 1998 10:44:50 -0400
Reply-To: Tyrone & Marilyn Greene <macpine@EARTHLINK.NET>
Sender: Vanagon Mailing List <Vanagon@vanagon.com>
From: Tyrone & Marilyn Greene <macpine@EARTHLINK.NET>
Subject: Re: A/C, R-12 to R134 Conversion
Content-Type: text/plain; charset=us-ascii
Lund wrote:
>
> To all:
> I would appreciate people's advise about converting to R-134 on 88 Vanagon.
> What is involved? Does VW make a change-over kit? My present system went
> "flat" shortly after I bought it and I want to make sure I do the job right.
>
> Thanks,
>
> Bill Lund
Bill and Volks,
Converting to R-134 from R-12 doesn't have to be a painful experiance. I
watched and listened to the guy that did mine last month. He's the guy
down here in Monroe County, FL. that is in charge of keeping the cops
(sherff and deputys) cool as they roam the Keys looking for them
desperautos running loose after our endangered beach bunnys (not sure
which will make you hotter).
Anyway, (not to be confused with Amway), as he worked on my van I asked
him what was involved in the conversion. He said when R-134a changes
first were made manditory, it was a pain in the #@*. But now it is
rather easy to do. No longer do you have to replace ALL the seals
because the oil that is now available, called ESTER OIL, is used in
place of the old oil called TAG OIL.
The following is the work sequence that he followed:
1) Visualy inspect complete A/C system for any noticeable malfunctions
and leaks.
2) Replace any and all hoses that had leaks.
3) Tighten any and all joints that appeared to be leaking.
4) Replace Dryer.
5) Pour ESTER OIL into high presure line at compressor and reconnect
line.
6) Attach manifold gage set and vaccume pump and pump down system for a
15 min. check.
7) If all is well, then disconnect pump, start engine, turn on A/C and
add a can (1 lb.) of R134a.
8) Check system for leaks.
9) Add remaining cans of coolent.
10) Again check for leaks as well as temp. inside of van.
DISCLAIMER: From my faulty memory I've recounted this proceedure, so if
I forgot something important - oh well ;) you should follow the
directions that comes with the retro-kit.
Ps. Total cost for me to have it done was $115 for the services of the
county's finest plus oil and coolant. $126 for new dryer and
high-presure hose w/fittings.
ALSO: As noted in an earlier posting to the list, my ductwork running
the length of the van took a dive right after this procedure was
finished. Haven't fixed it yet :(
Tyrone
Big Pine Key, FL
87 GL Syncro
etc....