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View Full Version : Turning the Sanden A/C compressor into onboard air.



chadjans
05-12-2005, 04:03 PM
Anyone taken a stock Sanden A/C compressor into an on board air setup? Since I will be doorless and bobbed I won't be needing the compressor. Suggestions or links?

Chad

JeepinHank
05-12-2005, 06:11 PM
Here's a couple I had bookmarked:

http://www.jonfund.com/technical/onboardair.shtml

http://www.nwjeepn.com/onboardair.htm

http://members.cox.net/rough-riders2/tech_page/sanden_OBA/sanden.html

That should be a good start for ya...

Kraqa
05-12-2005, 10:29 PM
i have what woudl you liek to know


one thing to rememner if your going to use the stock AC button on the dash you need to run a jumper between the two wires going to the top of the condenser.

Swamp boy
05-12-2005, 11:29 PM
Ditto.. I have done it to.. I wired a toggle switch to turn it on but you could very easily use the AC switch to do it...

Just ask whatever you want to know ... I am sure one of us can help..

FYI.. I have a compressor set up already for OBa.. So you can just remove yours and install mine... $50.. And I have already got the lines set up for air dryer and tool oiler...

Just like you see it here...
http://img.photobucket.com/albums/v122/swampboy/IM003399.jpg

Ground lead is already run and the switch lead is there as well... :mrgreen:

Notice how I try to help by selling my crap... :heart:

chadjans
05-13-2005, 01:37 AM
Build what you got. I'll check the links. Thanks guys.

Chad

Cody
05-14-2005, 11:19 PM
Ditto.. I have done it to.. I wired a toggle switch to turn it on but you could very easily use the AC switch to do it...

Just ask whatever you want to know ... I am sure one of us can help..

FYI.. I have a compressor set up already for OBa.. So you can just remove yours and install mine... $50.. And I have already got the lines set up for air dryer and tool oiler...

Just like you see it here...
http://img.photobucket.com/albums/v122/swampboy/IM003399.jpg

Ground lead is already run and the switch lead is there as well... :mrgreen:

Notice how I try to help by selling my crap... :heart:


If I bought this what else would I need to make it all work?

Swamp boy
05-14-2005, 11:32 PM
you would need an air dryer and a check valve and whatever fitting you want to use...

I used all the airhose and fitting that used to be hooked to this for my new set up..

And just so you know.. There was nothing wrong with this setup.. But I got a VIAIR 325 for very very cheap so I am using it...

Cody
05-15-2005, 04:55 AM
you would need an air dryer and a check valve and whatever fitting you want to use...

I used all the airhose and fitting that used to be hooked to this for my new set up..

And just so you know.. There was nothing wrong with this setup.. But I got a VIAIR 325 for very very cheap so I am using it...

WTF is an air dryer, where does one get one, and what would it cost.

I would like to do OBA in the very near future and I figure it'll cost me a few bucks to convert mine----if I can spend a few more bucks and save myself a little time and effort then I'm all for that. More time to spend wheelin.

Cody

Swamp boy
05-15-2005, 11:12 AM
Air dryer is simply that.. Its a filter type thingy that goes in line to pull the oil and moisture out of the air.. So you dont end up with a tank full of water
(Very humid here in louisiana...) Plus since you need a tool oiler to keep the sanden oiled you need the dryer to collect said oil...


They are both on the shelf at Home Depot/Lowes whatever... Near the air compressor parts ...
About $25 each If I remember correctly..


Carl


Edit... The tool oiler may be harder to find ... But they are out there.... It is designed to go inline between air line and a tool that will be running alot.. IE Air body saw or die cutter... To keep said tool oiled thruout its intire use so you dont have to pull it off and oil it every 20 mins or continuous use... :smt003


Hope that helps...

Cody
05-15-2005, 08:19 PM
Is the stock ac compressor strong enough to run air tools? What if I just want to be able to fill up tires and blow up the skirts of unsuspecting teenage girls?

Cody

Jim311
05-15-2005, 08:23 PM
What I want to know is how to convert my setup and not lose my AC. It's too fuckin' hot down here to be running without it. Anybody made their own brackets?

OverkillZJ
05-15-2005, 09:07 PM
What I want to know is how to convert my setup and not lose my AC. It's too fuckin' hot down here to be running without it. Anybody made their own brackets?

that's not converting, that's adding!

Jim311
05-15-2005, 09:31 PM
What I want to know is how to convert my setup and not lose my AC. It's too fuckin' hot down here to be running without it. Anybody made their own brackets?

that's not converting, that's adding!


A whole new topic altogether, I guess. Couldn't be that hard to build a bracket could it? Hmm....

Swamp boy
05-15-2005, 09:49 PM
I used it to do this...

http://jeephorizons.com/tech/zjflare/zjflare2.jpg

http://jeephorizons.com/tech/zjflare/zjflare3.jpg

http://jeephorizons.com/tech/zjflare/zjflare7.jpg

http://jeephorizons.com/tech/zjflare/zjflare6.jpg



I had to keep the engine reved to about 1500-2000 but it worked pretty good...

Jim311
05-15-2005, 10:55 PM
I don't even have a compressor at home, so it'd be good to have one on my Jeep :mrgreen:

Z
05-15-2005, 11:56 PM
Cody,

At idle, a Sanden is NOT enough to run air tools. At ~1100-1500 rpm, it IS enough to run air tools.

There is another piece of equipment that has not been mentioned - you need a shutoff switch of some sort based on the air tank pressure. Otherwise, your OBA setup will overpressurize. There is a cheap-ass way around this - use a popoff valve, which you should include for safety. A cheap-ass (and annoying) solution would ONLY use the popoff valve, so every now and then you'd get a rush of air escaping out of the popoff valve. My OBA setup uses an ARB switch that turns the compressor on at 80 psi and shuts it off at 100 psi. Since my OBA powers my front and rear ARBs, this solution works great for me.


Tom Z.

Swamp boy
05-16-2005, 12:13 AM
I thought I mentioned a regulator.. I used the regulator off of an old air compressor.. It is settable at what pressure you want to maintain in the tank and has the gauge right on it... ( I pulled the gauge off and ran a line off of it to the inside of my rig...)

Here is my regulator...

http://216.77.188.54/coDataImages/p/Groups/94/94531/pages/428064/IM002334.JPG

I pulled the back gauge off and ran a small high pressure line inside to this...

http://216.77.188.54/coDataImages/p/Groups/94/94531/pages/428064/IM002333.JPG

If you look up the yellow line you will see the check valve.. IT allows the air to bleed out once the regulator cuts off the compressor so that the compressor isnt under a strain when it comes back on...

Oh and it works fine at 12volt.. No problems at all...

Carl


If I had it to do all over again I would put a second check valve near the tank so that if there was any kind of damage to the line the tank would still hold some air...

TrojanMan
05-16-2005, 01:26 AM
Here's a couple I had bookmarked:

http://www.jonfund.com/technical/onboardair.shtml

http://www.nwjeepn.com/onboardair.htm

http://members.cox.net/rough-riders2/tech_page/sanden_OBA/sanden.html

That should be a good start for ya...

Great resources.. except for the third one, direct quote :

"Lesson # 6. You can get any question you want answered at http://www.jeepsunlimited.com"

:axe: :mrgreen:

Cody
05-16-2005, 03:36 AM
Well, I don't own any air tools so I'll be ok for awhile. I just want a way to fill tires up.

I'm fuckin lost though. I need a shopping list, and a 'OBA for dumbies" book lol.

Cody

TrojanMan
05-16-2005, 06:38 AM
Well, I don't own any air tools so I'll be ok for awhile. I just want a way to fill tires up.

I'm fuckin lost though. I need a shopping list, and a 'OBA for dumbies" book lol.

Cody

A few of the links hank posted have some parts lists with a diagram.

Z
05-16-2005, 09:44 AM
Cody,

If you can wait a month, I can show you all the pieces of my system at GSW.

Tom.

Swamp boy
05-16-2005, 01:06 PM
I can make you a parts list .. I have done this 4 times including twice with stock York compressors for FSJ buddies.. (I did it in Donzi's Rig but hooked up 2 tanks .)

Carl

chadjans
05-16-2005, 01:53 PM
I can make you a parts list .. I have done this 4 times including twice with stock York compressors for FSJ buddies.. (I did it in Donzi's Rig but hooked up 2 tanks .)

Carl

Parts list would be great. I am with Cody, I am a bit lost.

Chad

Vonzipper
05-17-2005, 03:33 PM
How long will the compressor last without lubrication, The problem you will find is that in A/C mode the compressor is lubed with the freon, Now you are just pushing air I think you'll find it will wear out very quickly.

The external oiler is for the intake side of the compressor for lubrication


Just my 2 cents

Scott

Z
05-17-2005, 03:50 PM
OBA usually has the followin setup:
Air Filter -> Air Tool Oiler -> Air Compressor -> Air Dryer (to remove oil and water -> Tank.

The oiler keeps the compressor lubricated. My system is ~4 years old and I'm still on the same compressor.

Jim311
05-17-2005, 05:39 PM
I'm bidding on a York 210 from an AMC 360. Supposedly it has an oil reservoir so I won't have to worry about oiling issues, which is a plus. We'll see if I win the auction, though. People always seem to snipe the auctions I'm interested in :(

Swamp boy
05-17-2005, 07:46 PM
I am working on the parts list.. I will post it up tommorow..

Or at least I will have it up by this weekend. :smt003

Carl

BigDaveZJ
05-18-2005, 01:04 AM
I am working on the parts list.. I will post it up tommorow..

Or at least I will have it up by this weekend. :smt003

Carl

If you have the time, maybe do a quick write up and I'll throw it in the writeup/FAQ section too, it'd a be very valuable writeup I think.

Swamp boy
05-18-2005, 08:38 AM
You got it...


Carl

nathaniel
05-18-2005, 10:49 AM
There is always some oil in the compressor all the time unless you pour it out. They have oil in them to begin with. Some of the oil does find its way out to other low spots in the a/c system but most of it stays where its supposed to be.



How long will the compressor last without lubrication, The problem you will find is that in A/C mode the compressor is lubed with the freon, Now you are just pushing air I think you'll find it will wear out very quickly.

The external oiler is for the intake side of the compressor for lubrication


Just my 2 cents

Scott

ATL ZJ
05-18-2005, 10:24 PM
I have a York 210 I pulled from the local yard here for $18. It's going to be going in AND I plan on keeping the stock A/C and Sanden compressor. if at all possible. It's enough to run air tools at idle and fill up 35s in around half a minute.

What I don't know for sure though is how mounting is going to work.. I'd like to move or turn the battery and run it right next to the alternator. I think if I remove the battery box, I should have enough room for the York. I'll also be doing the York blowby mod so it doesn't spit out any oil into the lines that could get into my tires. This is my next big project, so stay tuned to see what happens. I might even be up for making a few spare brackets for a minimal fee if it all turns out well.. :mrgreen:

Vonzipper
05-18-2005, 10:24 PM
Nathaniel, I beg to differ with you, any time you have one side open and the other is pumping you will get loss, just look at your home compressor and tell me why you get water in the tank then it makes it's way to your air tools, the oil will do the same, the good side will be a well lubricated air tool untill your empty...lol One way to combat this is to have a oiler on the intake side and a Z has said, his has worked for a few years

Jim311
05-18-2005, 10:46 PM
I have a York 210 I pulled from the local yard here for $18. It's going to be going in AND I plan on keeping the stock A/C and Sanden compressor. if at all possible. It's enough to run air tools at idle and fill up 35s in around half a minute.

What I don't know for sure though is how mounting is going to work.. I'd like to move or turn the battery and run it right next to the alternator. I think if I remove the battery box, I should have enough room for the York. I'll also be doing the York blowby mod so it doesn't spit out any oil into the lines that could get into my tires. This is my next big project, so stay tuned to see what happens. I might even be up for making a few spare brackets for a minimal fee if it all turns out well.. :mrgreen:


I'm also thinking about doing the same....

Vonzipper
05-18-2005, 11:25 PM
Has anyone added a york to a I6 and how much trouble is it

I havent looked Jim...

Jim311
05-18-2005, 11:44 PM
I think they make kits for the I6 don't they?

nathaniel
05-19-2005, 12:26 AM
Nathaniel, I beg to differ with you, any time you have one side open and the other is pumping you will get loss, just look at your home compressor and tell me why you get water in the tank then it makes it's way to your air tools, the oil will do the same, the good side will be a well lubricated air tool untill your empty...lol One way to combat this is to have a oiler on the intake side and a Z has said, his has worked for a few years

I wasn't disagreeing with the second part of your statement i was disagreeing with the assumption that oil in a normal a/c system isn't sitting in the compressor. Some of it is carried around by the freon but the majority of the oil in an a/c system is in the compressor.

Yes I also believe its absolutely neccessary to run oil before the compressor when using for onboard air.

Vonzipper
05-19-2005, 12:41 AM
I will PM you on my thoughts, Not really the thread to get into A/C tech

Ken L
05-19-2005, 08:59 AM
Has anyone added a york to a I6 and how much trouble is it

I havent looked Jim...

I'm in the process of putting a York on my 4.0. I've relocated the battery to where the coolant overflow was, put the coolant overflow where the stock airbox was to make room.

I've looked at the 4.0 brackets on Kilby's site, but my stock A/C compressor has some goofy ears where the fittings come out that I don't think the Kilby bracket will allow the York to clear. I'm buying the combination pulley for the alternator from them; once I get that I will start cutting and welding the bracket.

I'll post progress pictures, once I have the free time to make progress!

Jim311
05-19-2005, 09:18 AM
Will that combination pulley fit the V8 alternators as well?

JeepinHank
05-27-2005, 03:47 PM
Found another link that may be of interest for you, looks pretty well written:

http://www.geocities.com/guieberhard/jeep/jeeprenegadeair.html

Also refers to this one:

http://www.huv.com/jon/jeep/Air/index.html

Both have pretty good lists of materials and Gui's has a pretty good diagram.

HTH

chadjans
03-11-2006, 10:38 PM
The wires I need to join together to use the A/C switch; are they on top of the compressor? There were no wires attached to the condensor. I removed it.

Chad

Kraqa
03-12-2006, 03:31 PM
it was the plug that connected to the top of the condensor. for what its worth i woudl just re wire the compressor.

chadjans
03-12-2006, 06:59 PM
There were no wires on top of the condensor. Do you mean the accumulator?

Chad

jborushko
02-27-2009, 10:35 PM
Chad did you ever get this figured out? to use the stock a/c button? i've tried jumpering the accumulator plug, but no good. i also tried jumpering the high pressure switch plug. i still get to power to the a/c clutch wire.

maybe the a/c clutch relay (in the fuse box) is bad... i check that when i get home

can you help?

i could just hard wire it all but i'd like to use the stock button

chadjans
03-02-2009, 01:33 PM
it was the plug that connected to the top of the condensor. for what its worth i woudl just re wire the compressor.

Follow Kris' suggestion.

And


Nope.

I am pulling my dash, what's left of the stock wiring and probably the ac compressor to loose weight.

Relays do not typically go bad since they are protected by fuses.

jborushko
03-02-2009, 03:42 PM
Follow Kris' suggestion.

And


Nope.

I am pulling my dash, what's left of the stock wiring and probably the ac compressor to loose weight.

Relays do not typically go bad since they are protected by fuses.


yeah on the relay, i had to check it anyway... good of course
i just tore the panel apart and put a new switch where the a/c switch goes, not what i wanted to do but whatever its done now