Re: A/C compressor seal leak

["Fred Munro" <munrof@isys.ca>]

Hi Doyt;

    I seem to recall reading somewhere that only scroll type compressors are
suitable for R-134a conversion (Nippondenso, Zexel). The Audi TSB on R-134a
conversion states only Nippondenso and Zexel compressors are supported. They
do not plan to offer conversion kits for York or Delco compressors. The
compressor seals have to be changed to a material compatible with R-134a -
apparently the R-12 seals are not compatible.

HTH

Fred Munro
'91 200q  281k km

----- Original Message -----
From: Doyt W. Echelberger <Doyt@nwonline.net>
To: <quattro@audifans.com>
Sent: Wednesday, September 29, 1999 11:46 AM
Subject: A/C compressor seal leak


> My 86 4kq has a York compressor and the A/C Technician sez it's front seal
> is leaking R-12 at a rate of 1/2 pound per month. He called this a very
> small leak and suggested just recharging several times each summer. He
said
> the rest of the system was in first class condition and everything worked
> fine. That would cost about $200 per summer for R-12 recharging.
>
> When pressed harder, he gave me a list of items that needed replacement to
> return the system to like-new condition. Total cost including labor was
> $680. He didn't give me any other alternatives. Parts were:Rebuilt
> York...185,  Clutch......165,   Drier.50,    Fittings.....25,
> Expansion valve..60,    Labor.....100,    Vent and Recharge...95 (R-12)
>
> I'd like to find a way to slow down the compressor seal leak, and convert
> to R-134 to keep the recharging cost down for the next few years. I can
> afford to recharge with R-134 every year, or even twice a year.And the car
> will probably only be around two or three more years.
>
> I have read all the posts from the last year on R-134 conversions, most of
> which dealt with Nippondenso and Zexcel compressors.  I ended up wondering
> if I could change the seals on my own old York compressor and just replace
> the drier/receiver and some fittings. But no one talks about York
compressors.
>
> Or, better yet, I'd just like to add a stop-leak product (as yet un-named)
> and replace the drier/receiver and the fittings and have the technician
> purge the system and put in R-134 and its special oil. If I can avoid
> pulling the compressor and working on it, that would be the best
compromise
> from my viewpoint.
>
> So, I'm asking for ideas on how to stay cool next summer without replacing
> all the A/C parts, 'cause the car doesn't need to last another 13 years.
>
> Doyt Echelberger
> 86 4kq
>