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Date: Mon, 05 Sep 2005 02:42:57 GMT
From: "James Sweet" <jamessweetnospamail.com>
Subject: Re: C900 A/C charge


> > 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. > Yes that's a given, there was a hose with a loose fitting between the rubber and metal so I replaced the assembly as well as all the seals. Also it's a 17 year old car and refrigerant does slowly leach through rubber hoses and seals so some loss of charge over time is normal. I agree that the kits are a bit misleading, to do it right you really have to flush the system with solvent to remove all traces of the old oil, replace the expansion device and all the O-rings in the system and then use a decent vacuum pump to evacuate it for charging.

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