So after talking to all the guys and gals at Jeeps unlimited I went to Brad Kilby’s web site and spent me some money… I have a 93 YJ with the 2.5 liter and no A/C. So after browsing and figuring out which setup would work best for me I called Brad Kilby up and ordered my stuff. After a week of anxious waiting I got the packages…

I ordered:
York f210 model A/C. pump
Serpentine A/C. clutch
2 flange fittings
1 relief valve
1 check valve
1 coalescing filter
1 2.5 gal air tank
1 idler pulley for belt routing
1 pressure switch
1 intake breather
1 motor bracket for compressor attachment
Cha ching $$$$

So after receiving all this neat stuff I took it all out of the packages and looked for directions. Yeah right. You’re on your own buddy. So back to Jeeps unlimited and searched for write ups and idea’s. This is why I am doing mine. I sat down and put the pieces together and had the idea of how to do this in my head. So the next chance I got I installed the compressor and the bracket. Be sure to put the bolts to the compressor upward through the bottom of the bracket before bolting down the bracket because the bolts are too long to go in afterwards. Once you have that done you can set the pump down on the bracket and tighten up the bolts. The rear bolt closest to the motor is a pain so be patient with it and make sure you don’t cross thread it.

I went to the auto parts store and got a new belt for jeeps with A/C.… Well that didn’t work. It was either to short or to long depending on how I routed it. I got a belt that was 99 and 1/8 inches long to work for it. I also got

2 90* fittings
1 3/8 to ¼ reducer for the relief valve
1 pressure gauge
2 quick disconnects
30’ of 3/8 inside diameter hose
1 coupler for the breather to attach to the flange fitting
4 3/8 hose connectors
1 3/8 plug for the tank port I did not use
2 tees
1 hydraulic line from the compressor to the check valve
Some hose clamps (the nylon tie wraps you see in the picture were only temporary).
Don’t forget some Teflon tape for the threads.
Then I got some 14 gauge wire and a toggle switch. The kind that lights up while its on.
Cha ching again.

I installed the tank with some standoffs to clear the tub. I used galvanized pipe with ½ inside diameter for the standoffs and some full threaded bolts that I cut to length upon installation. I crawled inside and out and under the hood and under the jeep and over the whole thing again until the tank came to its final resting point at this location. It just didn’t fit under the hood anywhere and inside the jeep had its issues. So under the jeep it is. This seemed like the only logical place to put it to me because it was above the skid plate and out of the way of everything else. If I were to put it above the rear axle and forward I would have hit the exhaust hanger and the emergency brake cable and the driver side shock and a heat shield. So…..

Now with the tank installed we put our 90° pieces on and all the hose fittings and the relief valve and the plug in the tank and started to run the hose.

After all the plumbing was installed we took and hooked the check valve, pressure switch, tee, and coalescing filter, and hose fitting together in that order. The hydraulic line was used for heat reasons. The compressor produces a lot of heat and we didn’t want the standard hose to wear out prematurely.

Next we mounted the switch in the dash and ran a wire from the fuse panel (that was only hot when you turn on the ignition switch) through the switch and to the pressure switch. From the pressure switch it went to the clutch and grounded out there. Now you have a toggle switch turning on the pressure switch. The pressure switch turns on at 125 psi and turns off at 150 psi. The relief valve blows at 155 psi for extra safety.

I mounted my quick disconnects on the floor beside the seats inside the jeep. I thought this was an ideal location because I can easily get to two tires at a time with my air hose. It also keeps the quick disconnect out of the weather and functioning properly. It is very easy to get to the disconnects as well, and out of the way from people getting in and out of the jeep.

I mounted the pressure gauge in a convenient location and ran the hose from the tank to the gauge.

I mounted my compressor vertical and it just cleared the hood. I thought I was in the clear until I went wheeling. I hit a pretty good bump that day and the motor rocked around and the flange fitting dented my hood from the underside. I was pissed to say the least. So I took some time and mounted my pump sideways and now I have no clearance issues and all is well.

Now I can fill a 32” tire from 12 psi to 32 in 25 seconds. Not to mention I can run impact wrenches and other air powered tools with no problems all day long. The total cost was about 700.00 and worth every penny. Hope this write up can help you with your install. If you have any questions about it please email me and I would be more than happy to help you in any way that I can.

Chad.