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| Am I getting bullshitted?; Buying a 1994, guy says he installed a new compressor; doesn't blow cold | |
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| Tweet Topic Started: Aug 8 2017, 12:09 PM (279 Views) | |
| saladaddy | Aug 8 2017, 12:09 PM Post #1 |
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New Member
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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 | Aug 8 2017, 12:17 PM Post #2 |
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Dean
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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 | Aug 8 2017, 12:28 PM Post #3 |
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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 | Aug 8 2017, 12:44 PM Post #4 |
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Dean
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If the fittings on the car had threads on the outside then those are R12. |
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| MetroKid | Aug 8 2017, 01:39 PM Post #5 |
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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 | Aug 8 2017, 02:02 PM Post #6 |
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Going to check up on it again tomorrow. I'll keep you updated
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| t3ragtop | Aug 8 2017, 05:01 PM Post #7 |
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Turbo3 and Twincam Tweaker
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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.
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