How much oil does your York OBA compressor spit?

The IsARubicon

The IsARubicon

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For those with York compressors for air, how much oil does yours spit?

Our LJ came with a York setup and it seems to be spitting a lot of oil. I replaced the oil-coalescing filter and drained the air-holding tank and its still spitting a lot of oil - you can see a fine mist coming out of the hose and at high pressure enough will come out to get your hands wet.. I'm worried that filling the tires with all this oil is not good.

??
 
The IsARubicon said:
For those with York compressors for air, how much oil does yours spit?

Our LJ came with a York setup and it seems to be spitting a lot of oil. I replaced the oil-coalescing filter and drained the air-holding tank and its still spitting a lot of oil - you can see a fine mist coming out of the hose and at high pressure enough will come out to get your hands wet.. I'm worried that filling the tires with all this oil is not good.

??
Click to expand...

This is a common problem with York compressors and one reason to have a long cooling tube before the filter.

Off Road Only has a new restyled/redesigned York type compressor that doesn't spit oil.

https://offroadonly.com/shop/on-boa...york-compressor-with-finned-head-tj-specific/
Might not be the solution you are looking for but it is one option.
 
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Mine spits very little oil. I don't know what I did that was special, except block off a port between the crank case and the top end. I also ran the output side through a small power steering cooler before coalescing filter.
 
jjvw said:
Mine spits very little oil. I don't know what I did that was special, except block off a port between the crank case and the top end. I also ran the output side through a small power steering cooler before the manifold.
Click to expand...

I would guess that both of those modifications has helped. And you might have found one that was already sealed up well.
 
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A small air tank (like the Viair tanks) or large accumulator (like the ARB manifold) could also help separate some oil, assuming the flow path goes through the tank. You'd still have to drain it every now and then.
 
I have a 2Gal Viair tank..
here are pics of the plubming.
plumbing.jpg
plumbing2.jpg
 
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The IsARubicon said:
I have a 2Gal Viair tank..
here are pics of the plubming.
View attachment 171946View attachment 171947
Click to expand...
If you plumb it through the tank, it may help separate the oil. Have the input go in one end of the tank, and the output come out the other. Then some of the oil and water condensation should precipitate out in the tank. The tank would also help cool the air, unless it is located near a heat source.

It won't get rid of it all, but it would help eliminate the largest droplets.
 
Steel City 06 said:
If you plumb it through the tank, it may help separate the oil. Have the input go in one end of the tank, and the output come out the other. Then some of the oil and water condensation should precipitate out in the tank. The tank would also help cool the air, unless it is located near a heat source.

It won't get rid of it all, but it would help eliminate the largest droplets.
Click to expand...
That's how it's set up.. still spits a mess at me.
 
The IsARubicon said:
How does the power-steering cooler/cooler air/oil equate to less oil-spit?
Click to expand...

Just like on a home air compressor system you need a way to help cool the air that comes out of the compressor. This helps to separate the oil/water particles from the air. Then you need a low point for that oil/water to drain to.
Having the power steering cooler is helping do this.
On your setup you could replace your rubber line with a steel braided line like this.

https://offroadonly.com/shop/on-boa...air/braided-high-temp-compressor-outlet-hose/

Also if you do the modifications to your York like jjvw did it helps to limit the amount of oil being blown into the air. Remember a A/C system has oil in it that lubricates the system. So even though the York is a good pump for a OBA system it is still made to pump both air and oil thru the lines.

When running the AiRock system it is mandatory to have oil free air. After the coalescing filter I had a another oil separator that had a line back to the York. When the oil in it reached a certain level it would allow the oil to be sucked back into the York.
 
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Wildman said:
Just like on a home air compressor system you need a way to help cool the air that comes out of the compressor. This helps to separate the oil/water particles from the air. Then you need a low point for that oil/water to drain to.
Having the power steering cooler is helping do this.
On your setup you could replace your rubber line with a steel braided line like this.

https://offroadonly.com/shop/on-boa...air/braided-high-temp-compressor-outlet-hose/

Also if you do the modifications to your York like jjvw did it helps to limit the amount of oil being blown into the air. Remember a A/C system has oil in it that lubricates the system. So even though the York is a good pump for a OBA system it is still made to pump both air and oil thru the lines.
Click to expand...

That makes sense, thanks. I'm going to put a small power-steering cooler inline before the filter to see if that helps.

Would the height of oil coalescing filter matter much? its about level with the compressor and the air-tank. should it be lower, or does it matter?
 
The IsARubicon said:
How does the power-steering cooler/cooler air/oil equate to less oil-spit?
Click to expand...

I'm not sure it does. If it blows past the cylinders, the oil has to go somewhere and it doesn't just flow back into the crankcase. I've seen very little oil on mine over the last 5-6 years and dozens upon dozens of tires filled. I very rarely see anything in the separator. So, I have to think that mine doesn't have much blow by. Maybe blocking that port is the key. I don't know.
 
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The IsARubicon said:
That makes sense, thanks. I'm going to put a small power-steering cooler inline before the filter to see if that helps.

Would the height of oil coalescing filter matter much? its about level with the compressor and the air-tank. should it be lower, or does it matter?
Click to expand...

I would do the modifications recommended that has been linked. Adding the power-steering cooler won't hurt. Your coalescing filter is about the same height as mine was so no I don't think that is a issue.
 
The IsARubicon said:
That makes sense, thanks. I'm going to put a small power-steering cooler inline before the filter to see if that helps.

Would the height of oil coalescing filter matter much? its about level with the compressor and the air-tank. should it be lower, or does it matter?
Click to expand...

I stole my PS cooler from a later model Grand Cherokee at the junk yard. I added it simply to keep heat away from any plastic and rubber parts in the system.
 
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I will try blocking the head port tomorrow..

what pressure is everyone's pressure-switch turning off the compressor? Mine does not cut-off until 145psi - at that pressure the compressor starts getting noisy and thats when the most oil blows by.. i'm thinking a lower-pressure cutoff switch, like 110psi or 120psi might be better.
 
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