Somewhat OT, but only somewhat - EnviroSafe - Saab 900 Bulletin Board - Saabnet.com
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Somewhat OT, but only somewhat - EnviroSafe
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Posted by Justin VanAbrahams [Email] (#32) [Profile/Gallery] (more from Justin VanAbrahams) on Mon, 11 Aug 2014 15:13:34 Share Post by Email
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Yesterday I bit the bullet and hooked up a can of "EnviroSafe" to the AC system in the '93 Southwind motorhome. I'd been on the verge of trying it on a c900 for years, but always ended up just converting to R134a instead. With the motorhome, I had NO intention of taking the system apart to replace O-rings or anything else - I just wanted a quick fix. There was some R12 charge in the system, but I couldn't tell how much. Not enough to make the AC work, in any case. I could have taken it to a shop and had them recover the R12, test the system, given them $100 and then figured out the next step... or for $18 buy three cans of EnviroSafe and hope for the best.

I used my existing manifold gauges (bought for c900 R134a conversions) along with a set of R12 hoses from Amazon. I put about a half can in the system, the AC kicked on, system pressure stabilized, and the air got really cold. Upside: At the moment, I have working dash AC. I feel good whatever leak it might have is really slight, as it clearly had kept some charge all these years. If it does leak out, I have two and a half cans I can easily add back in to keep it working til summer is over. Downside: Now my R12 system is totally contaminated and nobody will service it without charging to evacuate the system first. My caring level is immeasurably small. Working AC for what amounts to $3 is made of win.

Due to the side-effect of this stuff (a contaminated system) I'm not sure I'd broadly recommend it, but for a borderline R12 system it sure seems to make sense. Glad I finally had a reason and opportunity to give it a try.

posted by 12.195.130...

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