York On-Board Air
FOUR WHEEL DRIVE WEB
This is a great project. Everyone needs one of these.
My original motivation for this project was that I thought it would be an easy upgrade and a good way to help out fellow Jeepers at the end of the trail. I have learned that not everyone has everything on their Jeeps, but if there are enough Jeeps around the combined equipment is usually more than enough to tackle any job.
When I set out to add On-Board air to my CJ-7, I wanted to have a reliable system with a good air supply. I also didn't want to fabricate any brackets. I ended up using AMC brackets of an '80 Concord that had a 258. The brackets are a perfect match and are made for a York compressor. You need to get the compressor bracket, the alternator bracket and the idler pulley. I paid $35 for all of the brackets and a really tired York with hoses and connectors. I visited several junkyards before I found these brackets. To me, it was worth the effort to have a factory looking setup. A friend supplied me with a nearly new York from a Freightliner truck and now all I needed was a tank, some fittings, and some hoses. I visited a local compressor repair shop and I was able to buy one of those "hot dog" style contractor compressors. The shop owner said the customer didn't want to pay for the repairs and he let me have it for $35. The tank had a regulator, switch, and a badly burned motor. I stripped everything off the tank and painted it. Now that I had all the parts I had to locate connectors that would work with my York. Unfortunately, nobody makes connectors that will attach to the York. I ended up cutting the rubber off of the original hoses and using some 1/2" compression fittings to attach my new hoses. I decided to locate my tank under the Jeep just in front of the gas tank. The tank fit perfectly between the shock towers and I attached it with bolts through the floor of the Jeep. I ran some hose from the tank to the compressor and from the tank to my regulator and switch. I connected the pressure switch to the clutch so that the compressor would come on at 90 PSI and cut off at 125 PSI. These instructions are not complete but they outline the process of installing on-board air. If you have any questions please e-mail me.