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Figuring out A/C

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Old Jul 4, 2013 | 09:40 PM
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BigBlockF350
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Figuring out A/C

I've got a 1988 F-350. Been running a 1973 Lincoln 460 in it for quite a while now without any A/C setup. I'm currently swapping it to a 1971 460 engine, and I would like to add A/C back to the truck while I'm in "project mode". I have the correct PS/AC bracket and can get a compressor that goes with the engine. The evaporator setup seems to be fine on the truck, the connections have just had plugs in them to keep trash out. Does anyone have a wiring diagram of the A/C setup? I would like to make sure that everything is still intact in the wiring before I start buying parts. I have access to a 1986 F-350 as a parts truck to get some parts. I can get the condenser and drier out of that truck. Anything else I'll need off of it?

I had thought of just buying a complete universal system from Vintage Air or something, but I'd like to use as much original Ford stuff as possible if it'll be easy enough.
 
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Old Jul 5, 2013 | 03:26 AM
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norfolknova
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Sorry I do not have a wiring diagram, When you do buy the new compressor to install, also buy a new Receiver/drier and a new orifice tube/expansion valve(not sure which your truck uses. Most places require them to be replaced to honor the warranty. Also male sure to flush out the condenser, evaporator and hoses.

Matt
 
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Old Jul 5, 2013 | 06:04 AM
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Originally Posted by norfolknova
Sorry I do not have a wiring diagram, When you do buy the new compressor to install, also buy a new Receiver/drier and a new orifice tube/expansion valve(not sure which your truck uses. Most places require them to be replaced to honor the warranty. Also male sure to flush out the condenser, evaporator and hoses.

Matt
Okay, thanks. What should I flush the stuff with? Just air or water?
 
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Old Jul 5, 2013 | 10:47 AM
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norfolknova
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The auto parts stores have an actual flush for the a/c system. It comes in a pressurized can with a rubber hose and plug type adapters to get a good fit into the tubing on the system.

Air will not remove any of residual contamination out and if you try to use water you will pay holly heck trying to get all of the moisture out afterward.

If you have access to a commercial refrigeration supply house ( United Refrigeration, ARS) or any of several others you can get the same stuff a little cheaper than the auto store

Matt
 
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Old Jul 5, 2013 | 05:10 PM
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Originally Posted by norfolknova
The auto parts stores have an actual flush for the a/c system. It comes in a pressurized can with a rubber hose and plug type adapters to get a good fit into the tubing on the system.

Air will not remove any of residual contamination out and if you try to use water you will pay holly heck trying to get all of the moisture out afterward.

If you have access to a commercial refrigeration supply house ( United Refrigeration, ARS) or any of several others you can get the same stuff a little cheaper than the auto store

Matt
Okay, thanks for the info. Do you think I'd just be better off getting a complete universal A/C system then using old parts that definitely needs a good cleaning out?
 
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Old Jul 5, 2013 | 07:16 PM
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norfolknova
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If it were me and I had a known good compressor that I was swapping into my truck I would put the used compressor in. I would still buy a new Orifice tube and receiver drier.
I would have no problems running a used condenser or evaporator but I would definitely flush the crap out of them. I would also probably spring for a new set of hoses for the system as they are a consumable item and have a useful life.

Matt
 
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