| air conditioning questions [message #134493] |
Wed, 13 July 2011 18:01  |
gmchunter
Messages: 222
Registered: March 2008
Location: ORANGE, CA
Karma:
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Senior Member |
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I seem to be confused because I don't have any knowledge of working on the air conditioning systems.
Like others I have spent money on new air conditioning compressor and dryer, charging up system with R12 and getting very little from it. In fact six months after the first charge I went back and spent more pulling a vacuum and adding more R12. Now six months later it appears I need another charge as it doesn't appear to be cooling properly--I am tired of paying $100 to $200 each visit.
What tools do I need to "pull a vacuum" on the system?
I see 2.5cfm vacuum pumps with R12 and R34 fittings available on ebay for $89 and gauges available from about $39. I was thinking of buying these tools to use but What happens to the R12 and oil in your system when you pull a vacuum with these tools and then add the R12A propane based coolant?
I am thinking that if I can get it to work decently with the R12a coolant it will only cost a minimum to add every six months if necessary. It seems the only saving grace of R12 is that you can get the professionals to work on it.
Any thoughts or suggestions?
Michael
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