Electric OBA (switches, manifolds, ports)

Presbuteros

New Member
Joined
Mar 27, 2008
Location
Wake Forest
I like this idea:

link

I found a guy with a 2 gallon tank that only has one hole/port. Can I use said tank, put a 5:1 manifold on it and feed the air input, unregulated output, adjustable regulated output, pressure switch, and safety regulator valve through it and it function properly?

My assumption is yes, but wanted to check before I buy said used tank.

There is a good picture of the air manifold example here. He has a separate port for the input from the compressor, my tank would not. I would input from the compressor into the manifold.
 
How much is that engineered set up? A regulator box from an air comp will work fine. All of the system has close to the same press. One hole in the tank is fine. Run one line from comp to tank, and put a T for the reg and another for the out port. If you are using a oil bath comp, the out port/chuck for hose, should be at the top of the tank. Or, you may have an automatic tire and tool oiler.
 
Price of the whole set up really depends on the parts you use. Are you going to spend a lot on a brand name compressor like ARB or get one from Harbor Freight? Buy a used tank or a new one? Some guys probably have a lot of spare parts laying around, I unfortunately don't and will have to buy all new couplers and such. No more than $120 I hope...
 
I don't see why that won't work. But that is very basic. It would be nice to have a screw valve in the bottom of the tank to let out the water and the excess oil if using a york compressor. Also the regulator in the picture will not work the way your thinking. Someone correct me if I'm wrong.that is like a regulator for a paint gun if I'm correct. I tried to use one on my setup for the regulated output for my ARB lockers and for some reason it didn't work and I can't remember why. Seems like it regulates a constant air flow but when air is static it let's pressure build beyond the regulator. And that is not good for an ARB cause it has a max pressure of 105psi and my pressure switch allows my compressor ot build almost 140psi. Some one let me know if I'm right or wrong I just can't remember.
 
Yeah, I'm back to the drawing board on this whole thing... I stumbled across this guy's write up.
link

I don't have use for my compressor for a/c (I don't even own windows) and will most likely abandon the electric setup and follow this outline instead. You just don't get enough return on your investment with electric pumps... Following this setup you can fill a 33x12.50x15 in less than 60 secs.

sounds good to me...

the parts will be the tank, pressure switch, hose, fittings, etc...
 
on the last write up, he used a water check valve, you need one designed for air, the one pictured does not have a seal and is effectively a waste and will constantly head your compressor.


I use my GM comp, with a pre oiler, goes through a air check valve and into a manifold.
Off the manifold,
1) Tank
2) Front output
3) Pressure Switch
4) Pressure relief valve
5) Gauge.
 
skyhi, i would like to see your setup in the k5. I'm wanting to make an oba setup in the xj and would like to see how you did yours.
 
Its nothin pretty but... Blazer Motor.jpg

100_1175.jpg

100_1176.jpg


You will notice the comment ion the check valve is the voice of experience, I need to get a pic with the new smaller valve.
 
do you not have problems with the rubber lines getting too hot and swelling?
 
Justin, I've got my OBA back in the XJ. It's real simple. I can send you some pics or you can just check it out next time we ride.
 
99ncxj said:
do you not have problems with the rubber lines getting too hot and swelling?
Click to expand...


No I busted 1 in just over 2 years.
Good news Is I keep a length in for spares and its simple hose clamps and barb fittings to replace.

I've contemplated metal lines and braided but it works...
 
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