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beaklr
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  		   Posted 3/7/2006 2:54 PM (GMT -7)    Quote This PostAlert An Admin About This Post.
I read an article at http://www.jedi.com/obiwan/jeep/york_oilmod.html
regarding a modification to reduce the oil that the York compressor exhausts. Is this a recomended or tried and true modification? If so do you still need the Coalescing filter in the setup? Any input would be appreciated.
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FireDog83
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  		   Posted 4/9/2009 6:06 PM (GMT -7)    Quote This PostAlert An Admin About This Post.
Has this been tested by anyone yet? Is it a viable option?
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Brad Kilby
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  		   Posted 4/13/2009 8:13 AM (GMT -7)    Quote This PostAlert An Admin About This Post.
It's not recommend by us and you won't find us endorsing it. The hole you're plugging is there for a reason or the mfr wouldn't put it there. Even after the mod is done, it doesn't stop the oil. Slows it down, yes, but doesn't stop it. You still need the coalescing filter.

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FireDog83
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  		   Posted 4/13/2009 10:34 AM (GMT -7)    Quote This PostAlert An Admin About This Post.
Cool, Thanks for clearing that up Brad.
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oilhorse
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  		   Posted 8/30/2009 9:24 AM (GMT -7)    Quote This PostAlert An Admin About This Post.

hmmmm...... I found this article on the web....

http://www.rockcrawler.com/techreports/york_mod/index.aspconfused

I did this mod 3 years ago and it has not caused any problems AND the oil discharged is almost nothing and the coalescing filter catches all of it. BEFORE the oil mod, I had to dump the bowl daily...

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oilhorse
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  		   Posted Yesterday 8:34 AM (GMT -7)    Quote This PostAlert An Admin About This Post.
also forgot to mention that I vented the crankcase too, BIG HELP as the crankcase gets pressurized when the compressor is running, just like a vehicle engine... if you don't vent the crankcase, you build pressure from ring blowby and piston movement. also, the york piston rings are designed to allow oil to get by and into the refrigerant lines. I had the head off my compressor and laid it on it's side and oil would just ooze out slowly around the pistons. If you look at the Oasis Mfg electric compressor site, they use the same York 210 but they have modified it with a big aluminum finned head (for better cooling) and they do something to the pistons or rings to make the oil loss better. I am thinking either they use a custom piston with more oil control rings or they are machining another groove in the york piston and adding an additional ring. I am currently tearing apart my spare 210 and looking into these upgrades...cool
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Brad Kilby
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  		   Posted 9/14/2009 7:17 AM (GMT -7)    Quote This PostAlert An Admin About This Post.
The compressors that Oasis uses has a few different mods to it than the standard York. They don't machine another ring groove in the piston because there isn't enough room for it but they do use a special piston ring. They also modify the suction chamber among other things. I used to sell the same compressor but it didn't sell very well and cost $200 more than the standard York so we quit selling them. They work ok but you still need to run the coalescing filter regardless.

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oilhorse
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  		   Posted 9/16/2009 3:23 PM (GMT -7)    Quote This PostAlert An Admin About This Post.
Thanks for the info Brad.. on the modified suction chamber that Oasis does, is it plugging the oil return hole to the crankcase? I took the head and valve plate  off mine and tapped the return hole with a 8-32 tap and installed a set screw with high temp locktite. DEFINATELY easier than taking off the clutch, pulley, front seal etc and tapping and pluging the hole down there..  The mod didn't make much difference UNTIL I vented the crankcase, now with positive pressure on the compressor head, it seems to push the oil back down around the ring(s) and when the compressor is running, I can feel a slight bit of air coming out of the crankcase breather. And YES you are right, you still need the coalescing filter to catch the oil that does get by. I also built a trick aluminum finned assembly that clamps around the entire head and adds a "heatsink" to the head giving the compressor additional cooling ability..scool

Post Edited (oilhorse) : 9/16/2009 10:27:36 PM GMT

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Brad Kilby
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  		   Posted 9/18/2009 8:04 AM (GMT -7)    Quote This PostAlert An Admin About This Post.
Oasis isn't modifying the compressor. The compressor manufacturer is. They plug the pee hole but open a new and larger one going to the crankcase because they want the vent and want the oil to drain out of the suction chamber quicker when the compressor isn't running. That's my guess anyways.

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Kruznlow
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  		   Posted 11/29/2009 4:11 PM (GMT -7)    Quote This PostAlert An Admin About This Post.
Brad, i have spoken with you years ago regarding Fullsizechevy.com and "The York Thread" we had goin there. I am building a new wild custom since my last was totalled and am looking into my air charging options now. Can you still get these modified yorks (Oasis XD4000 units) from whomever or have any leftovers?

btw.. heres the build... the last few pages cover a lot of the current state...

http://www.fullsizechevy.com/forums/general-discussion/projects-builds-restorations/283186-kruznlow-part-ii-rebuild.html
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Brad Kilby
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  		   Posted 11/30/2009 8:57 AM (GMT -7)    Quote This PostAlert An Admin About This Post.
Are you wanting the whole XD4000 or just the compressor itself? The build-up looks nice. What did that cab cost?

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Kruznlow
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  		   Posted 11/30/2009 3:52 PM (GMT -7)    Quote This PostAlert An Admin About This Post.
thanks! I found the cab on ebay and was actually local! There's a "new old Stock" seller of gm parts in Wi and they had 5 of these brand new in crates! got it for 1200 with doors, Virgin, GM parts, in factory primer. Pretty cut up now with my modifications but still a great starting point. Awesome!

As for the compressor i am thinking i could design a setup similar to the KWiK Performance Setup on the pass side of my 6.0L http://www.kwikperf.com/lsx_ac.html I know the york isnt a very pretty compressor but the finned head and nice annodized fittings would look nice i think... Just starting to try to figure out options so i can plan my build out correctly... Let me know what you think.. I was goin to run twin sandens but with the bodydrop and 6.0L I cant run the truck accessories so no extras on the driver side now...
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Brad Kilby
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  		   Posted 12/1/2009 2:58 AM (GMT -7)    Quote This PostAlert An Admin About This Post.
Hey whatever works for you. So you want just the compressor only?? I need specifics to ask the right questions.

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Kruznlow
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  		   Posted 12/3/2009 4:17 PM (GMT -7)    Quote This PostAlert An Admin About This Post.
hey, yeah, just a compressor, i'll have to figure out clutch and so on... know what fittings those heads use?
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ccpanel
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  		   Posted 3/7/2010 9:48 PM (GMT -7)    Quote This PostAlert An Admin About This Post.
What about venting the crank case to decrease internal pressure?
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Brad Kilby
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  		   Posted 3/8/2010 8:20 AM (GMT -7)    Quote This PostAlert An Admin About This Post.
You can try that. Some have success, some don't.

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