Topic: On Board Air

[95 Lowbuck]

You don't need to take oil out of the air for the York compresser.
It has a contained oil system within the unit.
The Sanden does not and has to be externally oiled by the incoming air.

[Jeffy]

You don't need to take oil out of the air for the York compresser.
It has a contained oil system within the unit.
The Sanden does not and has to be externally oiled by the incoming air.

Well, yes and no.

The York has a oil slump where the oil usually is.  BUT if you take the top off the compressor, you'll see that the slump is open at the top and can get into the air flow.  This can be a problem when mounting the compressor on it's side.  If you do this you need to make sure the compressor is laying with the intake side up.  Otherwise, you'll get a lot of oil in the lines.  Still, you'll get some oil in the air if you don't use a separator.

[nic99007]

Well, yes and no.

The York has a oil slump where the oil usually is.  BUT if you take the top off the compressor, you'll need that the slump is open at the top and can get into the air flow.  This can be a problem when mounting the compressor on it's side.  If you do this you need to make sure the compressor is laying with the intake side up.  Otherwise, you'll get a lot of oil in the lines.  Still, you'll get some oil in the air if you don't use a separator.

Jeffy is right
Another way to stop oil from getting into your airlines is the vent the crankcase.  My york is mounted upright, and i was still getting oil in the lines so I but on a coalescing (sp) filter and that cleaned up the air but the filter has getting filled up more than I liked because if you run a york without enough oil it will burn up.  So, i heard about venting the crankcase.  I thought i would try it.  I replaced one of the fill plugs with a bronze filter and now i get no oil coming out of the compressor.  so if you want the easy fix just vent the crankcase, it was about $9 in parts and 5 min to install   

[Bounty Hunter]

I did this mod to the York to minimize oil pushed into the system: http://members.cox.net/cglabe1/Air/OilFix.html

[rsturton]

I havea AC pump from a XJ on my YJ and I have enough air pressure to run air tools.  I know there is enough preaaure to fill tire.  I put a tool oiler on the intake and a coalescing filter on the output it works very well.

[dragon51]

Just found this and thought it might be helpfull to others aswell and when I do this mod to my york I know where to find it too! It's for plugging the oiling hole thing with out having to take the York off the engine and all the other hassel of tap and die.

Very easy mod will help stop about 90% of the oil blow by.
http://www.rockcrawler.com/techreports/york_mod/index.asp

[Bounty Hunter]

nic99007, where'd you get the bronze filter to vent the crankcase?

[nic99007]

it's a "muffler" from grainger.  part number 1A327   on thier website.  found it at a local industrial supply parts house.

[nic99007]

here's a pic

[Bounty Hunter]

I've seen those.  They have the adapters too?  I think I'd try it at a 90º upward if possible.

[nic99007]

yeah they did, once i found the right filter i just took the drain plug out from the side that I wanted to put the filter in and took that into the parts house and we rigged up the adapters to get from the treads on the York to the NPT threads on the filter.     it really works great.  i have not had any oil in my coalesing (sp) filter since.

[dragon51]

If you put the screw in the york to help stop the the blow by is that vent needed? And for those who don't have grainger acount how do where could one find that part at?

[Bounty Hunter]

I plugged the hole behind the bearing cover and I still get a lot of oil in my filter, going to try that crankcase vent next.

[nic99007]

If you put the screw in the york to help stop the the blow by is that vent needed? And for those who don't have grainger acount how do where could one find that part at?

i've heard that plugging that port works only so-so.  and that it could starve parts of the compressor for oil.  so i tried the vent and it works very good.  but i never plugged that port so i can't compare the 2 methods from first hand experience.  Grainger is a wholesale only operation.  So, I told them i was a car lot and needed a few small parts occasionally.   

[oakey]

I run the sanden factory compressor for my OBA system...  But I run grease in the unit instead of oil....  Check out this link for more info...

http://grungle.com/endlessair.html

Ive been running my for years now with out any problem and no oil in the system....