AC Questions
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More Turbo
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AC Questions
i bought my 91 7.3 with the ac in non working condition. i know for sure i need a new compressor which i plan on replacing. main question is is it recommended to convert to r134? i've read in some cases where people convert and they hate it. i've also read that people have used freeze 12 (more info on this would be awesome) and absolutely loved it and actually prefer to use freeze 12 over converting.
after replacing the compressor what are the next steps? sorry i dont have any ac experience under my belt. i would love a lot of info thanks in advance.. josh
after replacing the compressor what are the next steps? sorry i dont have any ac experience under my belt. i would love a lot of info thanks in advance.. josh
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main question is is it recommended to convert to r134? i've read in some cases where people convert and they hate it. i've also read that people have used freeze 12 (more info on this would be awesome) and absolutely loved it and actually prefer to use freeze 12 over converting.
Freeze 12 is a blend of hydrocarbons - propane, butane etc. It works as well if not better than R12, has no ozone-depletion potential, but isn't legal to use(in the US, anyway).
That being said, you are supposed to draw a vacuum against the system, let it sit overnight. If the vacuum is still there, you don't have leaks. You then charge it up with your refrigerant.
I'm not going to get into what you can get away with if all you care about is cold air, but you can find information of that sort if you google.
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I live in Texas I want some cold air for crying out loud LOL but what I'm getting from this since I gave it power and ground and the clutch didn't engage I need to replace the compressor. I was going to do that and the drier and o rings. After that I should retro fit it? Then take it to a shop?
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I live in Texas I want some cold air for crying out loud LOL but what I'm getting from this since I gave it power and ground and the clutch didn't engage I need to replace the compressor. I was going to do that and the drier and o rings. After that I should retro fit it? Then take it to a shop?
One thing that may help -- there are valves attached to the compressor, under black caps(valve heads are sticking towards the back of the engine compressor). Tighten those down and you can replace the compressor without losing pressure.
Add a few ounces of ester oil(or mineral oil for R12 if you have it) to the new compressor before installing it.
Logistics Pro
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You verified a problem with the clutch, but sounds like compressor condition is still unknown.
R12 is the better freon, but it's not on the shelf anymore and the prices where is it obtainable are just stupid. The R134 conversions work fine.
R12 is the better freon, but it's not on the shelf anymore and the prices where is it obtainable are just stupid. The R134 conversions work fine.
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So my compressor could still be in working condition? What is the next step in diagnosing it? Also where could I get a conversion kit?
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Do you have pressure in the system right now?
One thing that may help -- there are valves attached to the compressor, under black caps(valve heads are sticking towards the back of the engine compressor). Tighten those down and you can replace the compressor without losing pressure.
Add a few ounces of ester oil(or mineral oil for R12 if you have it) to the new compressor before installing it.
One thing that may help -- there are valves attached to the compressor, under black caps(valve heads are sticking towards the back of the engine compressor). Tighten those down and you can replace the compressor without losing pressure.
Add a few ounces of ester oil(or mineral oil for R12 if you have it) to the new compressor before installing it.
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There is presSure in the system. Crazy thing is today when I manually gave the compressor 12v the clutch engaged. When I put the harness back on the compressor it wouldn't engage? Next step?
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Often you bypass the switch temporarily when recharging.
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I went Ahead and bought a retrofit kit. Any tips and suggestions on how to do it? Do you recommend that I do it or leave it to the pros?
i ain't rite
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From: Marlboro Mental Hospital.
i just bought a case of it last week. $14 per can
i ain't rite
Joined: Mar 2005
Posts: 65,579
Likes: 5,611
From: Marlboro Mental Hospital.
send it out to have it done. first thing that needs to be done is recover what is in the system. then it has to be opened up and flushed out. then you need to replace the orifice tube, receiver drier, all o-rings, oil, and a few other things before pulling a vacuum and hoping it does not leak. then charge it and hope the compressor is good.
the only thing those retrofit kits are good for is making your wallet lighter by wasting money on the kit.
the only thing those retrofit kits are good for is making your wallet lighter by wasting money on the kit.
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