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Unread 12-07-2007, 09:13 AM   #76
jeepster93
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When I built my oba, I needed it to operate dual air lockers, so the air pressure in my system is set at 90 on and 105psi off, it also dictated an air tank, my tank is under the dual battery tray. I also agree that instead of useing the ports on the tank, use a manifold, will require much less plumbing.

My extreme flow compressor runs hot, as do most of the belt driven compressors(York included), the freon kept them cool when in an air conditioning system, but now the freon is gone as a coolant, and the coolant has the lube in it, you loose the ability to lube the compressor. Beware if this little suprize. Those rubber hoses that connect to the output of the compressor will get hot, very hot infact. Hot enough to melt the cheap hoses. That is one reason I use soft copper tubing rolled into a coil, to cool off the air before it enters the filter/seperator, and tank. Another thing I do to help keep things cool is to get my fresh air from the grill, NOT from under the hood, where the temp can be 100 degrees hotter than not under the hood.

Do it once, do it right...

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Unread 12-08-2007, 04:55 PM   #77
YJames90
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A question about screwing in the fittings on the tank.
do the threads of the fittings go all the way into the tank?
Mine stop half way at the point where its hard to turn.I dont want to strip or over tighten them
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My 2.5 to 4.3 swap thread
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Unread 12-08-2007, 08:09 PM   #78
sentinal02
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Quote:
Originally Posted by jamesx2
A question about screwing in the fittings on the tank.
do the threads of the fittings go all the way into the tank?
Mine stop half way at the point where its hard to turn.I dont want to strip or over tighten them
1/2 way is about right, depending on quality of the threads. it's normal for pipe threaded fittings to have some threads still showing. don't forget the teflon!
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RIP: '88 YJ 2.5L Ax-5 NP231
Posi-Loked. Herculined. Optima yellow top. 1" Shackle, 2" BDS. Cragar 397's Aussie front.

92 YJ 4.0L Ax-15 231
5" springs, 1" shackle 31's or 35's depending on my mood
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Unread 12-08-2007, 09:00 PM   #79
StreetbikeDepot
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Quote:
Originally Posted by jeepster93
Here is a pic of my oba...
Not an old air conditioning unit though. For an air tank I got a tank from an old Kenworth for running its air horns(it is like 2 gallons-16 long by 6 around, mounted under the battery tray).
With a belt driven unit, you should not need a large tank.
FYI-Your air conditioning pump will need a supply of lubracation oil, this lube is in the freon now...
I'm gathering up the parts for OBA myself with a York 210, I havent been able to find a manifold though. Where can I find a manifold lke the one in the pic above?
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Unread 12-08-2007, 11:59 PM   #80
hogzilla
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Here.

http://www.northerntool.com/webapp/w...70_13795_13795
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Unread 12-09-2007, 01:36 AM   #81
LoS10
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Ok I know you guys are probably very knowledgeable about compressors be it sandens, yorks, or w.e else.

But if you want THE best writeups for oiling, grease mods(sanden with no oil just grease), oil blowby mods, and every other specification you could possibly imagine to a compressor....

Sign up on http://www.s10forum.com ... do a search in the "baggin 'it" section for anything to do with these things, or just search for threads started by a guy that goes by DJDAudio. Hands down he is god when it comes to these things.

A lot of us (yes i know its probably an evil word here) minitruckers use sandens and yorks for engine driven compressors with air suspension. A good portion run these things up to 200psi on a daily basis with no problems. There is a lot of tech info to be shared between the two groups.

Hope someone benifits from this as inline oilers are pretty much useless after some of these mods are done.. and most are free or cheap and will make your compressor run cooler, longer, faster, and be much more hassle free.

Happy Wheeling!
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Unread 12-09-2007, 01:28 PM   #82
sentinal02
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Quote:
Originally Posted by LoS10
But if you want THE best writeups for oiling, grease mods(sanden with no oil just grease), oil blowby mods, and every other specification you could possibly imagine to a compressor....

Sign up on http://www.s10forum.com
yup, like these 2

http://www.s10forum.com/forum/f125/e...d-info-154924/

http://www.s10forum.com/forum/f125/a...o-know-168956/

researched a lot of my OBA stuff using DJ's threads
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RIP: '88 YJ 2.5L Ax-5 NP231
Posi-Loked. Herculined. Optima yellow top. 1" Shackle, 2" BDS. Cragar 397's Aussie front.

92 YJ 4.0L Ax-15 231
5" springs, 1" shackle 31's or 35's depending on my mood
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Unread 12-09-2007, 05:46 PM   #83
YJames90
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I did my OBA project today. Installed the hoses and tank but not the wireing
heres the factory hose to the air line
[IMG][/IMG]
Air line through factory AC firewall opening
[IMG][/IMG]
Making the cut for the seperator
[IMG][/IMG]
Seperator installed with pressure regulator
[IMG][/IMG]
intake filter, seperator mounted ,inline oiler and pressure switch
[IMG][/IMG]
another view
[IMG][/IMG]
Rear hole drilled for quick connector
[IMG][/IMG]
Rear air line installed to tank
[IMG][/IMG]
Front tempoary connection
[IMG][/IMG]

Wired it up with aligator clips today to try it.
The air line to the factory output connection kept blowing off due to a bad hose clamp.
Im going to the hardware store tomorrow for a replacement
Over all this really wasent a hard project, just time consueming.
The hardest part was mounting the tank and cutting away the plastic under the pass side rear wheel well to access the nuts for tightening
Still to come is spliceing the air line for a dash mount guage and power switch
And a preview for the next project... I aquired some diamond plate and metal stud thats used for building, this will be my overhead console
OBA , light switches , speakers and a lock box are in the works
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Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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Unread 12-09-2007, 05:57 PM   #84
hogzilla
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Looks good so far.

You're gonna put a rubber grommet on that firewall opening right ?
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Unread 12-09-2007, 06:12 PM   #85
YJames90
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Yes, its in the plans
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Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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Unread 12-10-2007, 06:02 AM   #86
Gasturbine
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Quote:
Originally Posted by pasinbuy
The most you can fill that is about 160 lbs. I don't think that will pose a safety problem at all filled with air. Place it where you want.

If punctured the most that will happen is a poof of air. Big deal.
Correct. A tank that size with that little pressure wont pose a threat. Take a look at some semis...you will see much larger tanks, mounted on the outside of the frame, and in some cases, right behind the front wheels.
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Unread 12-10-2007, 06:25 PM   #87
YJames90
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I need one of these
[IMG][/IMG]
This end on the compressor and some combination of fittings that will hook up to my air line with a few feet of metal tubing in the middle for cooling purposes,
any ideas where it get it?
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Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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Unread 12-10-2007, 08:26 PM   #88
Jeepsohigh
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Your project looks good keep the pic's coming.
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Unread 12-11-2007, 05:14 PM   #89
YJames90
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I went to home depot today but cant match up a fitting that goes onto the compressor
1/2" is too big and 3/8" is too small
I need the replicate the fitting to the compressor with some metal piping that screws into a barbed fitting for the hose
Please help!!
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Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread
http://www.jeepforum.com/forum/f12/4...begun-1237704/
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Unread 12-11-2007, 05:44 PM   #90
sentinal02
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Quote:
Originally Posted by jamesx2
I went to home depot today but cant match up a fitting that goes onto the compressor
1/2" is too big and 3/8" is too small
I need the replicate the fitting to the compressor with some metal piping that screws into a barbed fitting for the hose
Please help!!
i'm not 100% sure, but i think that might be a bubble flare type fitting.
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RIP: '88 YJ 2.5L Ax-5 NP231
Posi-Loked. Herculined. Optima yellow top. 1" Shackle, 2" BDS. Cragar 397's Aussie front.

92 YJ 4.0L Ax-15 231
5" springs, 1" shackle 31's or 35's depending on my mood
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