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Oil separators

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glcasey(at)adelphia.net
Guest

Posted: Sun Aug 06, 2006 5:00 am Post subject: Oil separators

I'm wondering if there are any opinions out there as to the  

effectiveness of the various breather tube oil separators that are  

available.  I've got a Lycoming IO-540 and it has a 1-inch breather  

line, but most of the systems for sale have only a 3/4-inch inlet  

fitting.



Gary Casey

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cubflyr(at)comcast.net
Guest

Posted: Sun Aug 06, 2006 7:34 am Post subject: Oil separators

 	  Quote: 	
		  I'm wondering as to the effectiveness of the various breather tube oil

separators >that are available.  I've got a Lycoming IO-540 and it has a
	


1-inch breather  

 	  Quote: 	
		  line, but most of the systems for sale have only a 3/4-inch inlet  

fitting.


	


Hey, Gary: There have been a BUNCH of posts regarding this very issue

recently on  the RV list. It has also been discussed previous to this, so

the RV archives should be pretty full of opinions. The general consensus

seems to be NOT to put a separator on, especially the bigger vented engines

because of the discrepancy in the breather outlet and the separator

inlet/outlets, as that causes increased crank case pressure which increases

oil leaks as that pressure searches for an escape route. 



YMMV, however. I have one but my in-hole matches the out-hole on my O-320.

Does it seem to make much difference? Not sure. There is still junk on the

belly, but maybe not as much as would be without it. 



Michael

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gyoung

Joined: 09 Jan 2006
Posts: 211
Location: Republic of Texas

Posted: Sun Aug 06, 2006 8:23 am Post subject: Oil separators

Check out Airwolf. They bought out the Walker line of separators and it

looks like they have a size for anything thru the large radials. I saw

one at their Oshkosh display that had dual inch-plus fittings. They're

not cheap though, $495 for my GO-480. I've got a small Beech separator

now connected just to my wet vacuum pump. But I've got leak issues to

solve before I can really tell if I need a more effective separator.



Greg Young



 	  Quote: 	
		   

 I'm wondering if there are any opinions out there as to the 

 effectiveness of the various breather tube oil separators 

 that are available.  I've got a Lycoming IO-540 and it has a 

 1-inch breather line, but most of the systems for sale have 

 only a 3/4-inch inlet fitting.

 

 Gary Casey

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grant.piper(at)bigpond.co
Guest

Posted: Sun Aug 06, 2006 1:54 pm Post subject: Oil separators

Hi Gary,



The absolute best is an inverted oil system vent tank.   Go to 

Ravenaircraft.com, they are cheaper than Christen.



Grant Piper

---

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