TOTW: OBA

[P&T Jeeps]

I did the standard Sanden conversion: intake filter, oiler, compressor, filter, check valve, pressure switch (ARB), tank, ARB's. I love it, suggest it, and would do it again & again!

Now my OBA question: I had my front bumper tapped as my tank, while stretching the front-end I think it might not make it back on. That said, I really want a tank, doesn't need to be huge but some sort of tank. I realize shops run PVC from the compressor to the outlets, so I assume PVC would be a suitable, light weight tank if it can be located in a protected area. your thoughts...

[mcYJ]

i used a sadan compressor for my oba so i'll put my two cents in. that sucker got hot quick. after about 10 minutes of running it'd get so hot it'd blow the discharge line off the back of the compressor. it even melted the oil serparator filter. if i had to do it again i'd use a york and some high pressure/temperature hose.

for an air tank i used an old fire extighisher i got from a fire extinghisher service shop. they had so many there i got my choice for next to nothing.

[thegrinch]

Here's mine.. http://longhornoffroad.com/pages/wri...ba/yorkoba.htm

I haven't seen anyone with a setup like mine-- i'm using a sanden for my A/C and a York for the OBA.. oh yea, both on my 4banger

[JeffsJeep04]

Time to drag this back up....

Grinch is the closest I've read so far, but is using a-typical AC. I'd have no objection to losing the AC to gain the OBA. I've heard mixed info on using a waggy bracket on an early YJ 2.5L. Some say it works, and some say it doesn't. I'd be running v-belt, maybe ditching the stock AC compressor.
Anyone done this? OBA.com is worthless for anything that doesn't use a serpentine belt.

[wildman4x4nut]

Originally Posted by 69CJ

great topic guys...

anyone out there already figure out how to mount a york up to a buick 225? I've already added power steering from a 231, but I've never seen a york on a 231 so I'm assuming the brackets are going to be custom. I'd love to have OBA...........

I'm drunk........... are you?

69CJ,
Yep I was running a York OBA setup on my 68 Jeep. I had to make my own brackets. I had broke my alt bracket again so I went to a u-pull it yard and started looking. Well I found a Buick V-6 that had a metal alt/A/C bracket combo. The A/C part was setup for a rotory type compressor but it was reallypretty easy to build a mount for the York that would work with the bracket. There are pictures of what I did on my web site.
Hope this helps & good luck.

[wildman4x4nut]

What do you have on board?

I am running a Kilby bracket to mount my York compressor onto my engine. I also still have stock A/C. I need that where I live every now & then.
I have not gotten the swich done yet, the air tank is still sitting in my shed. But then I got deployed to Iraq so that cut into my time. Once I am up and able to walk again I'll finish off my OBA. There are pictures on my site of what I have done so far.


Would you do it again?

Yes I would and yes I did. I had this same type of system on my CJ.


What would you make sure to include on your next system?

The one thing I don't have yet is a check valve and I will install one here pretty soon. Everything else that is on this system was also on my other system.

Anything you did that wasn't necessary?

Nothing that I can think of.

As I have already said I had this system on my old CJ also. I had to make my own brackets to get it to work. I have had OBA on my last 2 Jeeps & my Suzuki before that. I would not leave home without it!!

[spinner]

great topic, keep the info coming!

[MilspecXJ]

Does anyone know where i can get a York bracket to 4.0 in my 94 XJ while retaining the stock Sanden for AC? I realize i'll need to relocate the Batt.

Kilby still does not list one for use with AC. I'v heard that a TJ bracket MAY work?

I dont have the time or equipt to build my own, any help would be appreciated.

FWIW, i pulled my York 210 from a J10.

[GPERX4]

Originally Posted by R O

oil fix for yorks


oh yah,not my page.

Originally Posted by Snatch Block

I heard that this fix causes high pressures in the york causing it to break. I think that there has to be a vent somewhere. I could be wrong though.

So has anyone done the oil fix thing????????? I also head about the pressure build up when plugging the hole.I vented the fill hole on the York, but never lost much oil from it so I never did the oil fix thing.

So who has done the oil fix?????
Did you vent the case?????
How long have you run it this way?????
Any problems after???

[86CJ7Laredo]

Another good source for orks are AMC wagons. I got mine out of a 79 AMC Concord and its a 210. AMC replaced the york tag with there own tag so the only way to figure out which one it is is to remove the clutch which is easy.

[Randall Edge]

I planned to go with a York, so I ordered the Kilby bracket. Yorks seem to be kinda hard to find around here. The few I found were either froze up or $100+ and I still had to pull them myself. I searched every junkyard I could find within about 100 miles of home and was ready to give up and order a reman compressor. I finally stopped at an AC shop to price a rebuilt unit and the owner let me raid his core bin. He doesn't get paid for York cores so he let me have all I could find. I found a York 210 and a Tecumseh. They are both about 10.3 ci, so I took both home and bolted in the Tecumseh just to be different. The bolt patterns are the same and I'm using a serp belt clutch from a York on it. I'm using a pressure switch to turn on at 100psi and off at 120psi. I also found a tank, but it's not installed yet.

[Travis Waldher]

One source of tanks not mentioned so far:

Expired CO2 fire extenguisher bottles. They are already tapped for pipe thread, and fairly easy to come by, even free. Most the time they are decerted due to age.

[off a cough]

Does anyone know of any air tanks that will mount to an empty ABS tray? I don't think I need anything large, I'm still running on 31"s and plan on telling everyone else to find their own air.

<Newbie question / flame suit on>

[kpfitz]

does anybody have pics of a smallblock chevy with a 87-88 pulley config (1 vbelt and 1 grooved belt running a york. thanks

[99tantj]

Originally Posted by GPERX4

So has anyone done the oil fix thing????????? I also head about the pressure build up when plugging the hole.I vented the fill hole on the York, but never lost much oil from it so I never did the oil fix thing.

So who has done the oil fix?????
Did you vent the case?????
How long have you run it this way?????
Any problems after???

I did the fix, but I've only had mine for about a month. I'm also running a "load genie" unloader. The most I've used it is to air 8 35" tires from 12psi to 32. I'm also curious to know if other poeple have had problems with this oil fix.

[Urban Wheeler]

I'm hearing that Scouts have the big yorks, and they are mounted horizontal.

On PVC tanks, my brother uses sch 40 PVC to make air cannons. His design uses compressed air as it is more consistent. Anyway, he's run them over 100 psi with generally no failures. The only problems have happened when the stuff wasn't glued well. Any more cannons will be made with sch 80. If it bursts, it will just tear and rip open, rather than shattering with shrapnel flying like sch 40.

Originally Posted by thump93yj

Back when diving was one of my main hobbies...

80cu in tank at 3000psi in the back of the jeep
Nice clean dry air
Inconvenient to refill depending upon location $5-8 a pop.
Must have a C-card to get filled
Diving equipment is expensive
SCUBA tanks require annual visual inspections and 5yr hydro tests
My tanks LUXFER are no longer fillable due to some safety reg recently.

You can get a compressed air tank for paintball, as small as 30ci and as big as 114ci, 3000 psi or 4500 psi. They don't require annual inspections or any special card to get filled, but they do require 5 year hydro. Most are aluminum/carbon fiber wrap and are pretty light. Output is typically set to either 800 psi or 400 psi, but regulators are available to knock that down to under 100. This is a pic of a paintball reg made to attach directly to the tank and fill tires. You can run HPA or co2 through this one.

A new 88cu 4500 will run at least $200, and the reg in the pic is another $100. 20 oz co2 tanks are much cheaper at $15 to $25, depending on where you get them.

[jpboyjeep]

This is what I did, pretty much just read what most did when I searched! and copied it!

I hadn't used my AC in about a year, so going with the stock AC pump was my choice. After mud runs I get over 5 lbs of mud/leaves/pine needles jammed between my condensor and the radiator, so I wanted the condensor out!

But, on a 2000 TJ, I was able to just cut the factory hoses and run one to the oiler/filter, and the other to the water/oil separator/manifold.

I was running a cheap 12v compressor, so I had some of the fittings already, and a buddy owed me a favor, so I got the air oiler/filter/reg from him. I welded up a box to fit where my gas tank used to be, tested to 190psi. Switch on the dash. Pressure switch, 120psi off 90psi on with unloader.

I only just finished the wiring, pics were taken just after I mounted the stuff and tested it once. But now its wired. I have used it a dozen times or so, testing it to see if it will fail or what needs to be fixed. I can run an impact, but I haven't tried for extended periods. I usually just use a nozzle to blow out vacuum cleaner filters (renovating our house) for my testing. But it kicks the crap out of my little pancake compressor (air nailer)!

Goal: To fill up my tires and run an impact in emergency on the trail, blow out dirty components, reseat beads etc... I'm very happy with it now, we'll see how long it all lasts!

http://www.123.net/~lgottler/Myjeepp...t/Mainshot.jpg

http://www.123.net/~lgottler/Myjeepp...t/Lubeshot.JPG

http://www.123.net/~lgottler/Myjeepp...t/Sideshot.JPG

[99tantj]

Originally Posted by kidwired

. I took out all the Teflon tape and redid it all w/ locktite pneumatic fitting sealer, works MUCH better.

Did you use loctite 545? The one that is about $25 for a 50ml bottle?

[Mr. 678]

Preach:

I've done two York conversions. The units were designed to be mounted vertically or sideways, at least when used as a/c compressors. I don't believe there are any drawbacks to sideways mounting as air compressors. Give it a go if a side mount would work better for you.

[lilgreenjeepyj]

What is the best method to oil a saden compressor?

Any part number for the kilby york braket for a 2.5L YJ???

[dram97]

Yes but of course a three way (air source/ valve, left tire, right tire) would work for all situations. HF has two versions, one is a "T" the other is a conical multiport.

[luvthejeep]

has anyone made their own pully? i dont feel like dumping 55 bucks for something im pretty shure i can weld up- im just hafing a hard time trying to fund the right v belt pully to use on the factory nippon denso alt pully, and tryng to figure out how to center it w/o a lathe-

[mUD uCKeR]

I saw someone else mentioned the RV2 V-twin Mopar AC compressor. These things look like a little two cylinder engine. AND should pump air like crazy. I have one, and tried making it into a air compressor. It didn't work all that well, and i can't figure out why. I noticed there was a little valve in the intake side that i figureed what a check valve, but apparently it's not and I read somewhere it needs to be removed.
I also ran into a problem with a lot of the oil from the crankcase going thru the system past the pistons somehow. The only thing i can figure from that is that i either put to much oil in it... the rings are shot... or that the pressure from the crankcase not being vented is doing it. When i pulled the pump all apart, the cylider walls don't look gouged up, and i figured it must be one of the other two reasons. When it was working, the pump did make lots of pressure... just took forever to do it.
Anyone used one of these to make a air compressor yet...? If you did could we hear some details. Is anyone else interested in it even at all. ?

[Mudinyeri]

I run an electric compressor from a 12v Puma portable compressor. I mounted it under my hood and mounted a 3 gallon tank on the driver's side of the rear driveshaft. I've dinged it a couple times, but nothing serious.

I can run an impact wrench off of it and air up a 33" tire from 10 psi to 33 psi in about 45 seconds. For the cost, I'm pretty happy.

I'd like to try a York setup and probably will in my next build.

[jeepdude1]

Here is a look at my OBA setup. I run a Volvo compressor (York) that a buddy gave me. I used the "BLING" copper tubing fot the compressor for heat and all, plus it made for a clean install. I used all of the electrical from the factory air to turn the compressor onn and off. Just put a relay in the fuse box for the air, hooked up the pressure switch for the OBA to the wires for the low pressure switch for the air conditioning system, and put a switch grounding a couple wires under the dash to switch the system on. When the air is turned on, the engine even bumps the RPM a little. It also made for a clean install. I used a Kilby manifold, air brake fittings and air line, and put a gauge there as well.




The Oil filter is mounted on the fire wall, with one line going to the tank in the back and the other going to the air manafold. The air is split off after the backflow valve.



The air tank is mounted underneath the floor in front of the gas tank. Nice place with no clearance issues.



There are two air chucks on the Jeep. One on the rear, the other on the front.



Here is a picture of the engine compartment with all of the stuff in one pix.