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Old 09-18-2012, 07:23 PM   #1
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1979 24' Airstream Excella 24
athens , Georgia
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Advice on replacing A/C condenser on '79 24 Excella MoHo

I recently discovered that my original A/C condenser on my 24' AS Classic MoHo needs replacing. I guess that 33 years of wear/tear was sufficient for item to finally krap out.... particularly as hot as its been down South of recent.

Local shop will not attempt patch repair but will replumb to make something fit. I need to supply them with the "something."

What are my choices?

Any sources you guys might recommend?
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Old 09-19-2012, 01:23 AM   #2
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Something I came up with quickly. A google search may come up with even more.

http://www.summitracing.com/parts/ACF-15-20420/

Good Luck, Derek
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Old 09-19-2012, 01:46 AM   #3
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Hi, I'm not sure about where you are, but out here we have automotive air conditioner shops. They specialize in air conditioning repairs in motor vehicles. They would have anything you might need. I had a local one make and install custom hoses on my 1959 Ford Galaxie.
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Old 09-19-2012, 02:26 PM   #4
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1979 24' Airstream Excella 24
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It appears that I may have to buy a universal A/C condenser of some sort that will squeeze into the available space and then get a local yocal to hook it up for me using various fittings to make it work.

The space is tight... and hard to get at.... but can do.
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Old 09-19-2012, 02:38 PM   #5
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1981 31' Excella II
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You are going to convert to 134A I hope?

Perry
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Old 09-19-2012, 03:30 PM   #6
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Quote:
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You are going to convert to 134A I hope?

Perry

Are there pros/cons to 134a over other available refrigerants?
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Old 09-19-2012, 07:01 PM   #7
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Well Freon is no longer made and much harder to get. 134A is the most common and something you can go to any autoparts store to get or Walmart for that matter. You will need to replace the dryer and maybe the expansion valve or orfice. You will need to charge it with a different oil as well. Most of the oil is in the dryer so no real need to flush.

Perry
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Old 10-04-2012, 01:47 PM   #8
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1979 24' Airstream Excella 24
athens , Georgia
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Quote:
Originally Posted by perryg114 View Post
Well Freon is no longer made and much harder to get. 134A is the most common and something you can go to any autoparts store to get or Walmart for that matter. You will need to replace the dryer and maybe the expansion valve or orfice. You will need to charge it with a different oil as well. Most of the oil is in the dryer so no real need to flush.

Perry
I bolted on a modern generic condenser and got it plumbed today. Drier was replaced, system flushed and tech began to pump in the 134a. The system would not fully circulate the new refrigerant. The expansion valve is clogged up. Everything else checks out as good. Frigidaire compressor works on the output side.Most likely the compressor is fine.

Question.... how difficult is the expansion valve to get to and replace?

It seems to be under the dash and hard to reach. I can't touch it for sure. Seems to be in a "black box." Tech says that my A/C unit may be an aftermarket type installed soon after original purchase.

Are we talking removing the dashboard to get at the expansion valve? Yikes!!!
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Old 10-05-2012, 02:32 PM   #9
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1979 24' Airstream Excella 24
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I was able to pry open the "black box" without removing the dash... and detach the stuck a/c expansion valve. Seems to be filled with dessicant from a bag that split open in the drier unit.

A source for Egelhof or comparable expansion valves would certainly be great.
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