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Am I getting bullshitted?; Buying a 1994, guy says he installed a new compressor; doesn't blow cold
Topic Started: Aug 8 2017, 12:09 PM (279 Views)
saladaddy
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He told me he installed a new compressor and it was blowing cold a few days ago, and then told me it's not blowing cold because of a leak today.

I asked him to recharge it so I can see that it does in fact blow cold; he charged it with a gauge and a can of 134A even though it had screw on R12 fittings. Needless to say it didn't get any colder. There was already a language barrier on top of the fact he didn't seem to know what he was doing.

How can I test this myself? Rent a gauge from AutoZone? What should my pressures be for the low and the high side? How can I determine if it's the original R12 system or if it's been converted to 134A? Can you tell by looking at the compressor? It definitely looks like the original equipment

If I can at least see that it DOES blow cold, then I can change out the seals that are leaking. Right? I've never done AC work before...
Edited by saladaddy, Aug 8 2017, 12:14 PM.
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turbogts22
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Dean

If it is a 1994 model then it's already R134a from the factory unless someone added the system from an older model year. Anything is possible. If OEM it should have yellow A/C stickers under the hood stating what it is.
Edited by turbogts22, Aug 8 2017, 12:19 PM.
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saladaddy
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turbogts22
Aug 8 2017, 12:17 PM
If it is a 1994 model then it's already R134a from the factory unless someone added the system from an older model year. Anything is possible. If OEM it should have yellow A/C stickers under the hood stating what it is.
I know I saw him screw the fittings onto the check valve, instead of a quick connect. Could it be an R134a system with R12 fittings? If I check it out later I'll try and get some pictures
Edited by saladaddy, Aug 8 2017, 12:38 PM.
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turbogts22
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Dean

If the fittings on the car had threads on the outside then those are R12.
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MetroKid
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Post some pics of the car and how much you are paying for it, I'm sure someone can tell you whether or not your being picked around.
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saladaddy
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MetroKid
Aug 8 2017, 01:39 PM
Post some pics of the car and how much you are paying for it, I'm sure someone can tell you whether or not your being picked around.
Going to check up on it again tomorrow. I'll keep you updated :popcorn
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t3ragtop
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Turbo3 and Twincam Tweaker

some metro r12 systems have been converted to 134a but they generally have the adapter fittings in place.

i have found bad o-rings on converted systems where the guy didn't replace them. the 2 systems run different lubricating oils and the newer oil can disintegrate some r12 type o-rings.

in general, you don't often find a hobbyist or diy'r who has the correct equipment for pulling a vacuum on the system or re-charging the system. it takes more finesse than just blasting a can of freon into the line to charge the system. :whistle
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