91BLK_XJ

so after spending 3 hours on the trail yesterday cause a buddy popped a bead...its making me speed up turning my A/C to an air compressor lol but the problem is i have a some what idea how but i was wondering if anyone has done it and will tell me how and where to get the parts...can i just get everything from a local hardware store or have to order them or what? thanks

CodeXJ

You'll need a few parts at least.

1) An air tank to store the air in.
2) Pressure cutoff switch to cut the compressor when the pressure reachs a certain level.
3) An inline airtool oiler placed on the inlet side of the AC compressor.
4) An oil seperator on the outlet side of the AC compressor.
5) Various plumbing bits.

The oiler and seperator are important, the AC compressor is lubricated by oil suspended in the coolant. Since you'll be pumping air, not coolant, you'll need an alternative form of lubrication. An air tool oiler will work fine. The seperator pulls most of the water/oil from the air before shunting it off to the air tank.

There are many writeups on this on the internet.

foxmxrcer

you will also need a 1 way check valves and a pressure relief valve(safety purposes), I have it done on my jeep, but I did mine as cheaply as possible, I think it cost me 30 bucks in total

91BLK_XJ

well thats what im trying to do...cheap as possible...i just what something that will work better then the stupid 12 car tire compressor that i have that kept smoking after 1 min of pumping lol where did you get all the parts for your step up?

foxmxrcer

My setup consists of,
tool oiler, water/oil separator, pressure gauge-$20
15ft of 1/4" hose-$5
epoxy-had it
brass air fittings-had them
shutoff valve-had it
rocker switch-$2
5gal air tank-had it

I think thats everything, more or less the "intake" on the ac compressor goes to the tool oiler, and put a small air filter on it, then the pressure side runs to the 1/4" line and into the cab where I have a shutoff valve(instead of a check valve) then the line Y's off and 1 end goes to an air pressure gauge I have installed in the center console infront of the 4wd selector, the other end runs to the back to the water/oil separator which is mounted to the spare tire mount metal tab on the side, then to the 5 gal tank. I think my setup is pretty simple, but then again, wouldnt consider it "safe", if you do it the way I did(without check valve, pressure relief, pressure switch) you have to keep an eye on your gauge so you dont hurt yourself or anyone else, or you jeep of course

dwnandrty

98BLK XJ,

Looks like we're neighbors. You'll have to let me check it out if you get the setup worked out.

jon_89

if you are using it to fill tires only you dont need an air tank. Thats my opinion. I converted my compressor and can pump my tires pretty quick without a tank.

91BLK_XJ

foxmxrcer-i think im at least gonna go with a pressure switch but what did you do about wiring? do you have 2 wires that go into 1?

dwnandrty- looks like we are...im pretty sure ive seen the jeep around...are you ever go to george the jeep in covington?

foxmxrcer

if i remember correctly there is only 1 wire coming off the clutch on the ac compressor, so it grounds through the bracket, so just run a rocker switch with a power wire going to it to give the wire on the clutch +12

dwnandrty

What's george??? I must be missing something.

91BLK_XJ

foxmxrcer- sweet well now i just need to get everything and see if it works lol thanks for all the help!

dwnandrty- george the jeep...its a junkyard in covington that has 90% cherokees and they are alot cheaper then regular junkyards...i help out there all the time so thats where i usually see everyone

91BLK_XJ

so Finally got everything in and plumbed up and working....and works pretty good and can run air tools off of it

foxmxrcer

looks good, but what about the inline oiler? you will burn up the compressor without one, unless its a york compressor that has oil in the case

91BLK_XJ

its right after the filter...cant really see it

dwnandrty

I like it. What kind of PSI does it run? How long would it take to air back up one tire?