Onboard air with a stock a/c compressor
Tired of having that silly air conditioning in a topless/doorless Jeep? Or maybe you'&re just willing to sacrifice a creature comfort in order to gain an awesome on-trail tool. Either way, if your Jeep came from the factory with air conditioning, you have the makings of an excellent on-board air system, with fewer headaches than adapting a compressor from another application. Domain: http://www.visi.com
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Submitted by kizer on 10/25/03 Edited
10/27/03
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Outback Air C02 System
One of the all-time coolest modifications that you can make to your trail vehicle is to add an onboard air system. For years there have been many options for adding onboard air to just about any on or off-road vehicle. In general, these systems fell into one of two categories: expensive and cheap (literally and figuratively). There has not been a middle-of-the-road option for someone that wants a reliable system and doesn't want to invest a small fortune.
Meet the middle-of-the-road: the Outback Air CO2 System. To be called “middle-of-the-road” may not sound to you like a very positive endorsement but this is not the case with the Outback Air. The Outback Air is an awesome tool.
At one extreme we have powerful electric and belt-driven compressors (as well as other CO2 systems) that can be expensive and/or difficult to install. At the other end of the spectrum there are those inexpensive compressors that plug into your vehicle's power adaptor but provide very little power – and don't even think about running air tools on one of those puny things. Though the Outback Air System is not the first CO2 system on the market and doesn't have the fanciest regulator or guard, the Outback system is positioned at a more comfortable price point for the masses, possessing an impressive blend between air, power and cost. Domain: http://www.rockcrawler.com
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Submitted by kizer on 12/28/03
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Quick Air 2 under the hood install
Installation of a Quick Air2 using the drivers side auxilary battery storage pan. Domain: http://www.4x4xplor.com
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Submitted by kizer on 12/03/04
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Raven Off-Road 4x4 Club
Located in Oregon Domain: http://www.ravenoff-road.com
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Submitted by kizer on 12/05/03 Edited
12/14/05
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Removing the oil from a York 
Getting Rid of an Oil Mess in a York Air Compressor Domain: http://www.rockcrawler.com
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Submitted by kizer on 02/14/06
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Sanden onboard air Compressor
Why do you want an on-board-air (OBA) system?
You can run air-tools when you break something on the trail
You can air-up your tires when you're done wheelin'
If you have ARB air lockers in your differentials (like me) it provides a reliable source of air-pressure to actuate them
Below is the schematic that I drew (I pretty much stole the design from Matt Osburn) for how the system's all plugged in. My system is geared towards those of you who have ARB air lockers, however, a very similar design can be used for those of you who don't have an air-type locker. Simply remove the section with the ARB solenoids and it'll work just the same. This report covers everything in the diagram except for all air-lines to the left of the first "T" (to the left of the Check Valve.) I haven't installed my nerf-air-tanks yet, but will update this report when complete! Domain: http://www.jeepaholics.com
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Submitted by kizer on 10/22/05
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Stock AC Compressor
Tired of having that silly air conditioning in a topless/doorless Jeep? Or maybe you're just willing to sacrifice a creature comfort in order to gain an awesome on-trail tool. Either way, if your Jeep came from the factory with air conditioning, you have the makings of an excellent on-board air system, with fewer headaches than adapting a compressor from another application.
Some ingredients of an effective on-board air system are common to every installation, while others are 'nice to haves'. The must haves include a pressure switch and a safety valve. One major 'nice to have' is a tank. I'm currently running my system without a tank, which doesn't seem to affect performance much, when filling tires. If I were trying to use air tools, the absence of a tank would be much more noticable.
The first step in doing this project is designing the system. A couple decisions need to be made, for instance where you will put switches and safety valves, or if you will have a tank or not. If you Domain: http://www.visi.com
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Submitted by kizer on 10/22/05
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Stock AC Compressor
I am not going to get into why you need to air down on the trail or the benefits of having air tools available on the trail.
Also, I am not going to go into building the entire setup. There are plenty of websites out there that cover the entire setup. The hardest part of one of these setups is getting the A/C compressor mounted. I will show you how I mounted a factory compressor rather than using a York.
First, let me describe my logic behind choosing my onboard air solution. You basically have four ways to go. This was my pro's and con's list. I am sure there are more but these were the ones that stuck out in my mind the most. Domain: http://www.johnsoffroad.com
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Submitted by kizer on 10/22/05
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Viair compressor and tank install
Installing a Viair 450c in the drivers side battery tray and air tank install in a TJ. Domain: http://www.moabjeeper.com
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Submitted by kizer on 08/26/04
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York Compressor for On-Board Air
One of the most time-honored rituals in four-wheeling is the airing down of your tires before you hit the trail. The problem is that you then need to refill them to street pressure before you hit the highway. The obvious solution is to carry an air tank or air compressor with you on the trail. Domain: http://www.jedi.com
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Submitted by jeeperchris on 10/16/03 Edited
11/08/03
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York Compressor in a XJ
Notice the York sitting in the battery location. The air line comming off the york is the output side and goes into the one way check valve, filter, manifold, pressure switch. From the manifold it goes to the pressure gauge on the dash and the tank in the rear. Domain: http://grapeape.myjeeppage.com
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Submitted by kizer on 10/22/05
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York Compressor Oil Fix
I saw this fix somewhere on the net several years ago, but I can no longer find it, so I took some pictures and wrote up a tech note. My apologies to who ever came up with this idea, as credit where credit is due. I believe that this is the same modification that Sabre Force performs for $$$, but I'm not sure. It might take 30 minutes to do the first time and 15 minutes the next time. It cuts down the amount of oil blown out by 80-90%.
Yorks are great compressors, but they were designed as air conditioning compressors and they normally pump a lot of oil out of their discharge port no matter what orientation they are mounted in. It only takes a few minutes to modify the compressor so that is doesn't pump oil out. The York is designed to pump oil to the seal via a loop using pressure in the crankcase to deliver oil to the seal and then to the suction inlet port. You don't really need or want this oiling system when you are using the York as an air compressor. It is the oil enter Domain: http://members.cox.net
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Submitted by kizer on 10/22/05
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York Install into a CJ
Airing down your tires is often a requirement of many off-road adventures. Airing down is the easy part, it’s getting the air back in that becomes the challenge. There are a few options out there, such as 12v compressors, a Power Tank, or a York air conditioning compressor run by your engine. A Power Tank holds a limited amount of air and takes up a large amount of space. A 12v compressor is small, but does simply does not live up to the task of providing enough air. That leaves the York. If set up with an auxiliary air tank, the York will provide a very impressive amount of air. Enough to air up your tires in a matter of minutes and run air tools. Domain: http://myweb.cableone.net
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Submitted by kizer on 10/22/05
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York Install into a TJ
Ok, some of you have seen this before, or already have done this project. But I thought I would document my experience in hopes it would help someone else at the least get them to think about doing it. I bought this TJ used a little bit ago and it was set up pretty good with a 4" lift, exhaust, bumpers, wheels and tires. Well, it didn't take long to figure out that after a while I was going to have to spend some money to get it where I wanted. I knew that I was going to put some ARB's in but did not have that kind of cash (I have a 30/35's with 3.07 gears, I know it sucks!) so I figured out very quickly that a OBA would be money well spent and I would find many other uses for it. So off I went to do some research for some good ideas. What I found was that most of these systems are built around two A/C units York's and Sanden's. Most of which are York's. The system is based around using an A/C unit as the compressor which is mounted to the engine by a custom bracket it runs off the engi Domain: http://www.jeepaholics.com
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Submitted by kizer on 10/22/05
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