From: griffs@griffiths.com
Sent: Tuesday, August 08, 2000 10:01 AM
To: 928
Subject: [928] COOL Air Conditioning

Get the AC working with Griffiths air conditioning parts: 

New Sanden & Seltec Upgrade Compressor Kits, Remanufactured Nippondenso
Compressors, New Driers, New Condensers, R134a Conversions,
New Barrier Hose lines.

Come visit our 928 dedicated website:
http://www.griffiths.com/porsac928.htm

Or give us a call at:
800-451-7225



From: gak@klanderman.net
Sent: Tuesday, May 29, 2001 12:55 PM
To: 928
Subject: [928] A/C O-ring details for 88 S4


Hi,

I'm hoping someone on this list knows how to add this to the 928 OC
tips page under the air conditioning section as it may be helpful to
someone in the future.  I just replaced my A/C O-rings this past
weekend (OK, I still have a couple more on order) in the process of
converting to R134a and will be having the system leak tested and
filled next week.

Here's a list of part numbers, sizes, and numbers of O-rings I found
in my car (88 S4 with rear A/C):

  part number      size(mm)     front    rear
==============   ==========     =====    ====
999 707 284 40    6.6 x 1.5                2
999 707 247 40    7.5 x 2         4        3
999 707 261 40    9.0 x 1.8       2
999 707 250 40   10.6 x 2         3        1
999 707 251 40   14.0 x 2         3        4
999 707 252 40   17.0 x 2         2

And here's where they're all located:

Front A/C:

1. expansion valve (under plastic tray next to intensive washer
   reservoir): 2 x #251, 1 x #250, 1 x #247.

2. return line from expansion valve, middle of firewall: 1 x #252.

3. compressor fittings: 1 x #251, 1 x #250.

4. other side of return line to compressor at low side fill valve: 
   1 x #252.

5. heading into condenser: 1 x #250.

6. bottom of condenser heading up to receiver/drier: 1 x #247.

7. pressure and temperature switches just before receiver/drier: 
   2 x #261.

8. at receiver/drier: 2 x #247.

Rear A/C:

1. expansion valve: 2 x #251, 1 x #250, 1 x #247.

2. solenoid valve under passenger seat: 2 x #284.

3. 2 pipes under car from solenoid valve to front connections: 
   2 x #251. 2 x #247.


The kits I got from 928 Specialists were a bit different, but I've
updated them with this information so they should have it right now.
Thanks to Wally, Jeannie, and Dave for all their help!

enjoy,
greg