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Date: 4 Sep 2005 18:21:59 -0700
From: "SmaartAasSaabr" <>
Subject: Re: C900 A/C charge

hippo wrote: > James Sweet wrote: > > >I was dismayed to find that the replacement reciever/dryer lacks a sight > >glass, does anyone know the recommended refrigerant quantity for > charging > >this system ('88 900s) with R-134a? > > 1.0kg for R12 if you know the proportional change for R134A to do the > corrective maths. Sorry if that's no help. Cheers 975g on mine! Look on the various "Do not touch a/c system idiot!" multilingual stickers on the fenders, you'll see. Standard procedure is 80% R134a. However, you do need to use a pressure gauge and some other stuff to do the retrofit. Also, there is a reason the R12 leaked out in place #1. So find out what has happened, a leaky hose, dried up seals etc. Fix it proper and do a correct R134a retrofit and the aircon will be nice and cold (not as cold as new but more than fine) and you will enjoy it for a good long time. However, if you go to Wal Mart and buy a $40 "AC retrofit kit" which has a can of "sealant" goo plus some R134a or a mix of propane/butane etc will only last a short time and not work very well at all. It's a half-assed solution.

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