A/C parts
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Senior User
Joined: Aug 2009
Posts: 201
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From: Ohio
A/C parts
Ok, what parts do I need to buy to have working A/C? I have a compressor, but I don't think I have anything else. I know for a fact that I don't have a condenser (was in front of the radiator right?), I took it out myself, and didn't bother putting it back because it was trashed. There's no lines as far as I can tell either. What else would I need to buy/see if I have in order to have A/C in this old truck?
Laughing Gas
Joined: Dec 2010
Posts: 1,155
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From: Las vegas nevada
It does mix with freon... whe putting your oil in the system upon new ac in stall 5oz goes in the compressoer and 5 oz in the accumlator... then it mixes all around
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Senior User
Joined: Aug 2009
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From: Ohio
So when searching for the orifice tube on oreilly's, I get a whole bunch of them priced from $2 to $50. Whats the difference?
http://www.oreillyauto.com/site/c/se...350&vi=1126606
http://www.oreillyauto.com/site/c/se...350&vi=1126606
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More Turbo
Joined: Nov 2010
Posts: 521
Likes: 6
From: Cincinnati, OH
Your best solution would be to find a junkyard truck and get all your parts for that. Except the drier/accumulator, get that new. Flush all the used lines, used condenser and evap and compressor on your truck to make sure they are clean. By getting all the parts off a junkyard truck, you will have all the right hoses and end fittings. You can buy new, but it will cost a lot. Put lube on any O-rings before installation. Use the right oil for your refrigerant (mineral oil for R-12, POE for R-134a). As Felix stated, the oil mixes with the refrigerant and is distributed through the system. Pull vacuum and make sure it holds. Put initial charge in and then start truck and add the rest using gages to tell when it is fully charged. The values for R-12 are not the same as R-134a.
If no vacuum, take the assembled and oil charged empty system to an A/C shop and have them vacuum and charge. It is critical to vacuum the system so no air and also to get rid of any moisture.
The expensive orifice tubes are variable. The std $2 one should be OK for you.
If no vacuum, take the assembled and oil charged empty system to an A/C shop and have them vacuum and charge. It is critical to vacuum the system so no air and also to get rid of any moisture.
The expensive orifice tubes are variable. The std $2 one should be OK for you.
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Senior User
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From: Ohio
Thanks for the details. I may be in luck. Do you suppose the condenser/lines from a 93 E series will fit my truck?
I bought an old ambulance for an engine swap a couple years back, and I forgot that I saved most of that stuff.. I have a condenser and a couple lines, hopefully everything. The compressor that I have is the one that was on the ambulance engine and is still mounted under my hood. The condenser is a little bit messed up around the edges, but I don't know, maybe it is alright. They've also been sitting in kind of a dirty environment for over a year now...
How would I flush the system exactly.
I'm sorry I really know nothing about A/C, never touched any of it. I have a neighbor who comes over and recharges my systems for me. He said that A/c systems are too complicated to explain and it's easy to mess something up, then he showed me the 3 inch thick book titled "Air Conditioning" he has in his toolbox, and he said I'd be better off just letting him do it...
I bought an old ambulance for an engine swap a couple years back, and I forgot that I saved most of that stuff.. I have a condenser and a couple lines, hopefully everything. The compressor that I have is the one that was on the ambulance engine and is still mounted under my hood. The condenser is a little bit messed up around the edges, but I don't know, maybe it is alright. They've also been sitting in kind of a dirty environment for over a year now...
How would I flush the system exactly.
I'm sorry I really know nothing about A/C, never touched any of it. I have a neighbor who comes over and recharges my systems for me. He said that A/c systems are too complicated to explain and it's easy to mess something up, then he showed me the 3 inch thick book titled "Air Conditioning" he has in his toolbox, and he said I'd be better off just letting him do it...
More Turbo
Joined: Nov 2010
Posts: 521
Likes: 6
From: Cincinnati, OH
If the hoses and condenser fit you can use them. I do not know other than say try it and see. If no damage that makes a leak, it is OK. Flush by pouring solvent (mineral spirits is good) and then blow out with air. Do until clean and then final solvent rinse with lighter solvent (brake cleaner is good example). You want something that will not leave residue. Flush your evap and compressor also. Not just the hoses and condenser. Make the whole system clean, then connect it up using lube on connections as mentioned before. The lube is just a few drops of the same oil you put into the system.
A/C is not really that hard, but you do need to understand how the parts work and what is required. A few kind of specialized tools (vacuum pump, gages) and some knowledge. Certainly a home guy can do if you have the tools or understanding.
A/C is not really that hard, but you do need to understand how the parts work and what is required. A few kind of specialized tools (vacuum pump, gages) and some knowledge. Certainly a home guy can do if you have the tools or understanding.
Posting Guru
Joined: Dec 2005
Posts: 1,528
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From: Peterborough, Ontario
Anyone have any info or sources for a vacuum pump for this stuff? That's the one thing I haven't seen available here to be able to do my own AC work, or at least try to do it. Looking particularly for Canadian sources though, I know you guys in the states can likely get it at harbour freight or northern tool.
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Senior User
Joined: Aug 2009
Posts: 201
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From: Ohio
If the hoses and condenser fit you can use them. I do not know other than say try it and see. If no damage that makes a leak, it is OK. Flush by pouring solvent (mineral spirits is good) and then blow out with air. Do until clean and then final solvent rinse with lighter solvent (brake cleaner is good example). You want something that will not leave residue. Flush your evap and compressor also. Not just the hoses and condenser. Make the whole system clean, then connect it up using lube on connections as mentioned before. The lube is just a few drops of the same oil you put into the system.
A/C is not really that hard, but you do need to understand how the parts work and what is required. A few kind of specialized tools (vacuum pump, gages) and some knowledge. Certainly a home guy can do if you have the tools or understanding.
A/C is not really that hard, but you do need to understand how the parts work and what is required. A few kind of specialized tools (vacuum pump, gages) and some knowledge. Certainly a home guy can do if you have the tools or understanding.
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