Converting A/C compressor to an On-board Air Compressor
Junior Member
Joined: Dec 2009
Posts: 57
Likes: 0
From: Boise, ID
Year: 2000
Model: Cherokee
Engine: 4.0
Any compressor will will work as an air compressor. The Sanden is the best. But you could still use your stock compressor. The trick is to hook up a mister on the intake. The only AC compressor that has a crank case that will hold oil is the York, and it is only on older models and is very large.
Junior Member
Joined: Dec 2009
Posts: 57
Likes: 0
From: Boise, ID
Year: 2000
Model: Cherokee
Engine: 4.0
AKA check valve. You can get some from suicidedoors.com (low rider site but has tons of products for air related things)
Here is a link to it all
http://www.suicidedoors.com/catalog/air-management
Last edited by tisz; Dec 10, 2009 at 07:26 AM.
Thread Starter
CF Veteran
Joined: Nov 2009
Posts: 1,671
Likes: 1
From: Northern Vermont
Year: '89
Model: Cherokee
Engine: 242
AKA check valve. You can get some from suicidedoors.com (low rider site but has tons of products for air related things)
Here is a link to it all
http://www.suicidedoors.com/catalog/air-management
Here is a link to it all
http://www.suicidedoors.com/catalog/air-management
Leader Hoses??? Why are they selling pants?!?!
this is my york compressor for on board air


I'm keeping the a/c so I'll be installing this hanging off to the right...which means I need to relocate my batteries to the back.


I'm keeping the a/c so I'll be installing this hanging off to the right...which means I need to relocate my batteries to the back.
Seasoned Member
Joined: Jul 2009
Posts: 398
Likes: 0
From: Bremerton
Year: 87
Model: Cherokee
Engine: 4.0
I did this a couple months ago. All I did was had the systemed emptied, cut the hose, and used hose barbs to connect the in and out. For the in I used a breather filter, tool oiler, and then into the pump. For the output I have a filter into a tee with a pop off valve and quick connect. Works really good with no tank. I can fill my 31s from 15psi to 30pis in about half a minute.


Last edited by jon_89; Dec 10, 2009 at 05:42 PM.
Registered Users
Joined: Mar 2009
Posts: 633
Likes: 1
From: NW Oregon
Year: 89
Model: Cherokee
Engine: 4.0
For all your OBA needs:http://www.naxja.org/forum/showthrea...ight=pdx%27ers
I finished mine up earlyer this week. with a 6gal tank in the rear it powers my 1/2" Impact with ease.. hell for short bursts the OBA will power the impact without the tank!
I finished mine up earlyer this week. with a 6gal tank in the rear it powers my 1/2" Impact with ease.. hell for short bursts the OBA will power the impact without the tank!
Thread Starter
CF Veteran
Joined: Nov 2009
Posts: 1,671
Likes: 1
From: Northern Vermont
Year: '89
Model: Cherokee
Engine: 242
I did this a couple months ago. All I did was had the systemed emptied, cut the hose, and used hose barbs to connect the in and out. For the in I used a breather filter, tool oiler, and then into the pump. For the output I have a filter into a tee with a pop off valve and quick connect. Works really good with no tank. I can fill my 31s from 15psi to 30pis in about half a minute.
Very Nice Jon_89!
Its simple, yet, effective.
Could I hook this up to a tank, if I wanted too, at a later date?
Im assuming I could....???
Seasoned Member
Joined: Jul 2009
Posts: 398
Likes: 0
From: Bremerton
Year: 87
Model: Cherokee
Engine: 4.0
thanks.yeah i was going to use a tank but dont want to spend $70 and it would be pointless as i have no air tools. if you wanted to run air tools i think you could with no tank due to good flow. if more flow is needed increase the engine rpms a bit.
Thread Starter
CF Veteran
Joined: Nov 2009
Posts: 1,671
Likes: 1
From: Northern Vermont
Year: '89
Model: Cherokee
Engine: 242
I just wanted to know, incase I ever wanted a tank. I dont have any air tools of my own right now either.
But definitely good design! I like things that are simple and effective.
Junior Member
Joined: Dec 2009
Posts: 57
Likes: 0
From: Boise, ID
Year: 2000
Model: Cherokee
Engine: 4.0
owning a pickup that has air ride.... one thing i havent seen is anyone use a pressure switch to shut the comp off. So if you do decide to use a tank install a pressure switch. Then you dont have to worry about over filling AND it will keep your tank aired up to the pressure of your liking (depending on what you buy)
This is what I use. I like it because it has the switch, relay etc built into it. Just connect it to your tank, clutch of comp, power and ground.
This is what I use. I like it because it has the switch, relay etc built into it. Just connect it to your tank, clutch of comp, power and ground.
Thread Starter
CF Veteran
Joined: Nov 2009
Posts: 1,671
Likes: 1
From: Northern Vermont
Year: '89
Model: Cherokee
Engine: 242
Thanks, Tisz!
And it sounds easy enough for me, lol, if I ever wanted to install a tank.
Mechanics Im just naturally inclined at, but when it comes to electronics, like circuitry, switches, & wiring schematics...yeah, not so good.
And it sounds easy enough for me, lol, if I ever wanted to install a tank.
Mechanics Im just naturally inclined at, but when it comes to electronics, like circuitry, switches, & wiring schematics...yeah, not so good.



