Replacing AC, R12 to R134A, parts needed?

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Old 09-14-2005, 01:45 AM
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Default Replacing AC, R12 to R134A, parts needed?

My 1980 240 air conditioner has about had it. I've recharged it and it still does not do the job. I would like to replace all the air conditioner parts with parts made to support R134A. My idea is to replace everything needed for R134A and have a professional lube and charge it. Can someone tell me what parts I need to replace in order to make my AC R134A compliant? Do I need to get into the dash, because that's a -----? (replaced my fan motor earlier this year).

Thanks, Mike
 
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Old 09-14-2005, 03:03 AM
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Default RE: Replacing AC, R12 to R134A, parts needed?

Hey Parrym, changing out the fan motor is a pain. I think this link will help you out. I've heard this is a good kit to use for the conversion. I've actually also heard negative things about it, but nothing bad enough to keep me from posting the link. This is a cost and time effective way to convert your AC. I believe they sell this kit at Walmart as a matter of fact. Good luck! Let us know how it goes!

http://autorepair.about.com/library/...fpr120704c.htm

Also, here is a link to the manufacturors "how to" guide for their product. This may prove useful before-hand, knowing what is involved and all.

http://www.id-usa.com/how_to.asp

Matthew
 
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Old 09-14-2005, 08:39 PM
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Default RE: Replacing AC, R12 to R134A, parts needed?

You can convert to 134A by removing all the oil in the system.Then if you want to change the compressor you can.Also change the high side hose.Then install the ester oil and add the adaptor and charge the system.
You will be fine.
 
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Old 09-14-2005, 11:29 PM
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Default RE: Replacing AC, R12 to R134A, parts needed?

After surfing around, it sounds like I should really have it vacuum tested first before I go to the expense of replacing parts. I presumed that being 25 years old and never having been replaced that the compressor was going bad (sounds pretty loud after running awhile). Thanks for the posts, there is some good information here. My biggest fear was going into that dash again... I think I will stick with the R12. That way I don't have to upgrade anything to support R134A. I have also heard there are some R12 replacements that do better then R134A, I will research that also. Has anybody heard of the R12 organic replacement?

Thanks
 
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Old 09-15-2005, 12:43 AM
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Default RE: Replacing AC, R12 to R134A, parts needed?

I haven't heard enough to post about it. I know that R12 has become quite expensive. You should be able to "borrow" a set of lines/guages from Autozone with their loan-a-tool program. I've been told you can at least. Might be worth looking at.

matthew
 
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Old 09-15-2005, 09:21 PM
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Default RE: Replacing AC, R12 to R134A, parts needed?

You won't have to go in the dash at all.

Like I told you replace the compressor like you were going to.Then replace the high side hose and the expansion valve/orface tube and you will be fine.
 
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Old 09-16-2005, 12:50 AM
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Default RE: Replacing AC, R12 to R134A, parts needed?

Ok, Thanks!
 
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Old 09-25-2005, 12:56 AM
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Default RE: Replacing AC, R12 to R134A, parts needed?

Update: I finally broke down and had a mechanic look at my AC. Turns out everything is ok with the exception of very little coolant (despite me trying to add a can). They vacuum pressure tested it and put in almost 3 pounds of coolant (That stuff cost $70 a pound!!!!!). Cools good now, not bad for a 25 year old AC (hope it holds up).

Thanks for your input!
 
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Old 09-25-2005, 11:23 PM
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Default RE: Replacing AC, R12 to R134A, parts needed?

Good luck you must have a smal leak.
 
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