Date: Sun, 31 Jul 2005 09:31:45 +0100
From: Sleeker GT Phwoar <>
Subject: Re: 1992 saab 900s conv 2.1 ac problem

In article <>, says... >FWIW, I recently had my 9000 re-gassed, not that I suspected anything >wrong with it, just that I didn't know the history of the A/C and wanted >to have a known datum. My usual chap came round and connected the >gauges and was pretty horrified by the high pressure shooting round to >400psi and what he thought was an audibly straining compressor. > >As an experiment, he emptied the system and measured the recovered >amount which was 1.2kg when the proper charge should be 950g. > I know the feeling. My Celica which I am getting rid of needed refilling. I know because I accidently opened one of the compressor lines instead of removing one of it's mount bolts when trying to get to something behind it, no gas wooshed out, but some dye dribbled. no gass came out. As the Celica was a nasty R12 system, I had to find a replacement. Found an Ebay UK auction for 1 Kilo R49 or R314 (R12 drop in) and a valve/filler tube. As I had already "broken the seal" and was selling the car soon, and so few have working aircon anyway, I thought I might just give it a top up. System takes 700g R12 roughly, and R314 needs between 10 and 20% less. So with a set of kitchen scales, and the site glass, I got about 580- 600g of R314 regrigerant in. It is leaking. But only from the O ring I disturbed when I opened the pipe. Has stayed cold now for over a month. Was absolutley great at the end of June when it was toasting hot. Once it has leaked out, I reckon getting the O-ring replaced, give it a proper drier/reciever replacement if I keep it, and a proper Vac/Dry, lube and regas will sort that out. All old R12 users, look for R49/R413 (essentially the same thing), or RS24. RS24 was developed as a replacment for refrigerated trucks that used R12. All those three are added as a liquid rather than a gas. They work. -- Carl Robson Car PC Build starts again. Homepage:

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