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 Post subject: Convert ac compressor to OBA
PostPosted: Sun Dec 09, 2012 10:19 pm 
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Joined: Thu Jul 16, 2009 11:34 am
Posts: 1236
Can you convert the ac compressor to On Board Air pump? Any details?

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2002 KJ Limited 3.7, 5.25" lift via coilovers, custom HD rear springs, 32.2" tires on moabs (soon 33s) 4.56/JBA diff, OX lockers front/rear, NP241OR, Parker Fab front/rear bumpers, rock rails and roof rack, Viair OBA.

2006 KJ sport 3.7, 4" Ironman lift, 32" tires, Parker Fab front/rear bumpers and rock rails.


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 Post subject: Re: Convert ac compressor to OBA
PostPosted: Wed Dec 12, 2012 1:50 pm 
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Joined: Tue Dec 11, 2012 9:55 pm
Posts: 12
Simple answer , Yes. I did it in my YJ. Check out websites like Kilby for their kits, but you can make your own. You will need some way of oiling the intake line and then removing the oil via a filter. Also, the charged air is very hot when it comes out. The line coming out of the compressor needs to be something cable of handling 150+ degrees. I don't know if it gets that hot, but it will melt right through PVC air hose. Just ask me how I know. I run a piece of braided steel line to a ZJ transmission cooler, and coming off the cooler I run a piece of copper line to the filter, and after the filter is all PVC line to the tank. I had a broken craftsman compressor that I stole the regulator and pressure gauges from. I got my pressure cut off switch from a place that makes kits for air powered train horns. The only specialty part I got from Kilby was the check valve.

Be aware once you make this, everyone in your Jeep club will want to use it. I was the first in my club, but now there are 3 of us. I can go from 8 psi to 25 psi in my 35's in a little over a minute. It works awesome. If you google onboard air you will find several set ups and ideas.

Good luck


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