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Old April 4th, 2009, 09:19 AM   #1
GREASYHANDS
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Default How To Turn A/c Comp Into Air Comp?

What Needs To Happen To Turn The Stock A/c Compressor Into A Functioning Air Compressor To Air Tires Up Off The Trail. I Would Assume U Would Need Some Sort Of Tank To Store Air. Any Ideas I Know Some Guys Must Be Doing This
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Old April 4th, 2009, 11:07 AM   #2
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I am going to be doing this this summer. I know there is a detailed description of how to do it on full size bronco . com (sorry cc)
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Old April 7th, 2009, 09:24 AM   #3
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We did it on my buddy's s-10 hooked it up to a switch and a press. reg and it'll run the impact for changing tires even without a tank although i'd like to make a tube bumper into a tank for him, it would def. help. just be sure to add some ref. oil now and then
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Old April 7th, 2009, 09:52 AM   #4
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me and my buddy were talking about doing this too.anybody on here done this on a full size chevy 88-98??diagram and parts list would be awesome!!!
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Old April 7th, 2009, 10:05 AM   #5
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i did it on my explorer. hooked up the discharge line off the comp to a 3 gallon air tank in place of my old spare in the rear. i got a quick connect air hose, and valve to shut off the tank. also rigged the comp to a switch so i cant turn it on and off.
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Old April 7th, 2009, 03:25 PM   #6
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one like sucks air, one blows it.. figure it out then hook a hose up to the blow and a filter with an oiler on the sucks.. switched 12v power to thew clutch wires and BAM!!


OBA bitches
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Old April 7th, 2009, 09:05 PM   #7
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make sure you regulate it though with a press. switch
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Old April 9th, 2009, 04:08 PM   #8
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what did u make lines out of? did u tie into the rubber at the back of the compressor with hose clamps? what about the pressure switch is that a 12vlt switch?
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Old April 9th, 2009, 08:07 PM   #9
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check out kilby enterprises for a good diagrahm of how to hook up a complete system.
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Old April 9th, 2009, 08:10 PM   #10
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make sure you use an in line oiler if on a jeep.
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Old April 9th, 2009, 08:41 PM   #11
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I am using a york 210 a/c compressor to fill my 12 gal air tank which runs the air suspension on my street truck.... I am running the comp clutch with a pressure switch that is mounted to the tank, it will go up to 175psi and shut off, and kick back on at 145psi.... make sure to use a good hose going between the comp and the tank I had a problem with melting the plastic line cause the air is hot coming out of the comp... I switched to steel braided and no problems since... there are a couple companies out there making fittings for the york compressors that convert them to npt threads so it is a screw together deal to hook up the feed line.

for oiling I just put a couple oz.s of 30wt motor oil in the comp and check it now and then.
this comp is fast, it fills a 12 gal tank in about 30 sec if you are going from 145 to 175 psi.....
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Old April 15th, 2009, 11:56 PM   #12
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I'm using the old axial style factory GM a/c compressor. Bolted a block of aluminum on the back with a couple of 1/4"NPT holes threaded through. I read somewhere that it will make 14+ CFM at about 2000 RPM. as the compressor gets older it slows down a little and gets noisier untill it seizes up. I'm on my second compressor in about 10 years. I love it. And it uses all the factory a/c mounting brackets to my small block. I run a 4 gallon tank and I plumbed in a regular air compressor pressure switch to run the clutch and a throttle kick up selinoid. I also run a oil seperator filter after a check valve after the compressor because this compressor was not ment to run dry, the r-12 had oil in it for lubricating the guts. so I ocasionally drizzle a little slick 50 (motorkote) into the intake. Which I plumbed into the bottom of my air cleaner.

my brother has the york compressor on his amc360. his is nice because it has its own crankcase with a oil resivor. but I think mine pumps faster.
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Old April 16th, 2009, 12:05 AM   #13
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Filter and an oiler on the intake side of the pump, check valve and dryer on the other to the tank. The hardest part is adapting the lines really. Yorks are the easiest, but a saden compressor works great too. Just make sure you have a shut off because ive heard the output is about 300psi. But they are a ton better than an electric pump


BTW, easiest way to figure out which one is in and out, spray wd-40 into it and turn the clutch on, just stand back. Have a buddy watch for it or something
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Old April 17th, 2009, 10:30 PM   #14
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Check this link out on york compressors
http://www.offroaders.com/info/tech-...nboard-air.htm
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Old September 22nd, 2009, 08:23 PM   #15
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can someone give me a list of all the parts i need to do this with my blazer. this would come in handy for doing repairs on the trails
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Old September 22nd, 2009, 08:32 PM   #16
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you need a coalaceling filter to remove the oil and other shit from the line, you can also make it "recycle" the exhausted oil back into the system so you don't have to keep draining the bowl. This is a part you don't want to skip, unless you like oil and shit in your tires,tools,lines,etc.
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Old September 22nd, 2009, 08:34 PM   #17
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Quote:
Originally Posted by BlzrNick View Post
can someone give me a list of all the parts i need to do this with my blazer. this would come in handy for doing repairs on the trails
I have a current build thread for my on board air setup on my YJ complete with parts list.

I ordered my 3/8 brakeline to plumb to the tank today and the last of my fittings which will put the cost just over $200.

if you use the sanden style compressor, you will have to use an external oiler since it originally got it's lubrication from the refrigerant. the yorks have their own crankcase and run on regular 10w-30.

yorks can be had for $20 at the bone yards. I know everyone wants the 210 model, but even the lesser models will put a good amount of air, just not as quick as the 210.

Quote:
you need a coalaceling filter to remove the oil and other shit from the line, you can also make it "recycle" the exhausted oil back into the system so you don't have to keep draining the bowl. This is a part you don't want to skip, unless you like oil and shit in your tires,tools,lines,etc.
yes. some yorks will blow more oil than others. mine blows almost none so I simply used an oil water separator. if you go with a coalescing filter get it from grainger at less than half of that of Kilby. nothing against kilby but they are way expensive.

Last edited by ovrlnd; September 22nd, 2009 at 08:38 PM.
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Old September 22nd, 2009, 09:27 PM   #18
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did yorks come stock in something and is there an easy way to bolt it up to my 4.3L
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Old September 22nd, 2009, 09:37 PM   #19
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Quote:
Originally Posted by BlzrNick View Post
did yorks come stock in something and is there an easy way to bolt it up to my 4.3L
most any 70's vintage ride with air. jeep, amc, gm's, fords, lincolns, mercury, volvo, mercedes.

here is one build on a 4.3 chevy
http://www.pirate4x4.com/forum/showt...light=4.3L+OBA

Last edited by ovrlnd; September 22nd, 2009 at 09:46 PM.
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