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240 expansion valve, oil leak 200 1989

posted by  greg_mustang on  Wed Apr 19 06:19 CST 2006
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last visit: Sat May 10 07:26 CST 2014
[RELATED]

Hi All,

For those well experienced in A/C on the 240:

About three years ago I converted my system to r134. replaced expansion valve, receiver dryer, drained oil in compressor and replaced with ester oil, I also replaced the high pressure hose from condensor to compressor which was leaking. Anyhow the system ran fine for about two years. Last year the pressure dropped a bit, I topped it off, and also added an electric pusher fan, which helped performance in traffic.
This year the pressure is a bit low again, now doing the carpet I find that oil was leaking at the expansion valve area (accumulating where the tube bends down like a trap) and it had formed a nice oil stain going down into the carpet.

I was wondering if anyone ever had a leak there.... yes when I replaced everything, all new o-rings too.

Thanks,
Greg
Montreal, Canada





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