X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 13 Nov 2013 09:03:44 -0500 Message-ID: X-Original-Return-Path: Received: from nm12.bullet.mail.ne1.yahoo.com ([98.138.90.75] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6587660 for lml@lancaironline.net; Wed, 13 Nov 2013 08:01:06 -0500 Received-SPF: none receiver=logan.com; client-ip=98.138.90.75; envelope-from=casey.gary@yahoo.com Received: from [98.138.100.103] by nm12.bullet.mail.ne1.yahoo.com with NNFMP; 13 Nov 2013 13:00:31 -0000 Received: from [98.138.86.157] by tm102.bullet.mail.ne1.yahoo.com with NNFMP; 13 Nov 2013 13:00:31 -0000 Received: from [127.0.0.1] by omp1015.mail.ne1.yahoo.com with NNFMP; 13 Nov 2013 13:00:31 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 361990.287.bm@omp1015.mail.ne1.yahoo.com Received: (qmail 47053 invoked by uid 60001); 13 Nov 2013 13:00:31 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=T8yecGYaROTaB9HVFXMbjQqqzd0m2lhQ6Ocnly6cP1kDEemJvthMsudyPH1ywJkDO9M1CZsB8iZty1aYvPZZdakr4r2+DQiPfXQl+IWLr2W/N80mYJ3gAUHYw2QxeG2CBoWbJ0v+3tEbOGl5HyOxqMRbtmdXwmHzYEvh6OKvjE4=; X-YMail-OSG: u48JobkVM1lVuHkSJ1DM2T5kw9Q6CSG.9dhk9L3x_4tQlB_ JgX.n25NNNbEKCBW8h0LO1JS2X97tr6v8W2IJc9iL_JVCYzDk69e71kHsMWW 6SWN1_eRzp7NW6Pzz2d4ibHVrNfWtEglwcUGXEF5nXsbqu_LjYy8ssC.EVHZ wn86T5pbr8nhF9CbHa0LjFVJ.t78JjpHnHS0JW_U5S6211CW2Kd30Lrl_fqa crc2huSmvpeagQVVDS4S8Mkm_GhDuSEkO3RiEaKQ.YfDEq476uB8okceVz2k ma_2Av1RPMQLamEns_gfmKP7SKGWyS_rhAarUtf5dIvkz.g7IUsoW6p_3BHo PDPjy6hMOYV1rExByf7NSpN5BDcG3.fa6u9kz6M722edZC0_rXadlQ387CFZ FeL2Y5Ib6G_V0B1LoB1x9CuHhMK8M8VUEJP5KeFIygBdpMqJFwMC6upgH8Nv gpZ2TbU9UsCC9ptiMn5OdIMv608iMJ7yvPEJZ7eGhlGXj5Fy05bbBujyf_7t Ef7qz_eCI.fuScZEsa9OClc28Xoepg3eK3SndvCIqM3uNnWLK_g_KavrBx_g OeXBFPQ_JfEovnMJMuB6fiXSM Received: from [173.30.114.159] by web120102.mail.ne1.yahoo.com via HTTP; Wed, 13 Nov 2013 05:00:31 PST X-Rocket-MIMEInfo: 002.001,SSB0aGluayB0aGVyZSBpcyBhIHJlYXNvbiBmb3IgYmVpbmcgY2F1dGlvdXMgYWJvdXQgcHV0dGluZyB0aGUgcmV0dXJuIGxpbmUgaW50byB0aGUgZW5naW5lLCBidXQgdGhhdCdzIG5vdCBpdC4gwqBUaGUgZ3VuayB0aGF0IHNob3dzIHVwIGluIHRoZSBzZXBhcmF0b3IgaXMgdGhlIHZlcnkgc2FtZSBzdHVmZiB0aGF0IGlzIGluIHRoZSBjcmFua2Nhc2UsIHNvIHRoZXJlIGlzbid0IG11Y2ggcmVhc29uIHRvIGJlIGFmcmFpZCB0byBwdXQgaXQgYmFjayBpbi4gwqBUaGUgcmVhc29uIGl0IGxvb2tzIGJhZCBpcyABMAEBAQE- X-Mailer: YahooMailWebService/0.8.163.597 X-Original-Message-ID: <1384347631.46266.YahooMailNeo@web120102.mail.ne1.yahoo.com> X-Original-Date: Wed, 13 Nov 2013 05:00:31 -0800 (PST) From: Gary Casey Reply-To: Gary Casey Subject: RE: Engine air oil separator Andair X-Original-To: Lancair Mailing List MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-1658718958-1207397402-1384347631=:46266" ---1658718958-1207397402-1384347631=:46266 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable I think there is a reason for being cautious about putting the return line = into the engine, but that's not it. =A0The gunk that shows up in the separa= tor is the very same stuff that is in the crankcase, so there isn't much re= ason to be afraid to put it back in. =A0The reason it looks bad is that aft= er cooling, the moisture condenses and is visible. =A0In the crankcase the = heat will boil off the water. =A0I think the reason to be cautious is that = the pressure in the separator could, under some conditions, be lower than t= he crankcase pressure, and in that case oil could be "pumped" from the engi= ne into the separator and potentially overboard. =A0So you have to be caref= ul to make sure the oil drain is above any oil level, preventing solid oil = from being driven overboard.=0A=0AThat being said, I would like to add a se= parator to my Lycoming, but I can't sort out the claims of all the units be= ing sold. =A0Is there a "better" one - or one that actually works?=0AGary C= asey=0A=0A=0AI just bought an Andair Oil Separator from ACS.=A0 According t= o a video clip=0Aon Andair's site, these are being used by Cirrus and Cessn= a.=0A=0AI haven't installed it yet because, despite the fact that ACS shows= the=0Acondenser trap on the pic, it must be ordered separately.=A0 That is= ordered.=0A=0ASeems that the current thinking is NOT to drain that crap ba= ck into the=0Aengine (acidic and emulsified with water).=0A=0AGordon=0A ---1658718958-1207397402-1384347631=:46266 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
I think there is a reason for being cautious about putti= ng the return line into the engine, but that's not it.  The gunk that = shows up in the separator is the very same stuff that is in the crankcase, = so there isn't much reason to be afraid to put it back in.  The reason= it looks bad is that after cooling, the moisture condenses and is visible.=  In the crankcase the heat will boil off the water.  I think the= reason to be cautious is that the pressure in the separator could, under s= ome conditions, be lower than the crankcase pressure, and in that case oil = could be "pumped" from the engine into the separator and potentially overbo= ard.  So you have to be careful to make sure the oil drain is above an= y oil level, preventing solid oil from being driven overboard.

That being said, I would like to add a separator to my Lycoming, but I = can't sort out the claims of all the units being sold.  Is there a "be= tter" one - or one that actually works?
Gary Casey


I just bought an Andair Oil Separator from ACS.  Ac= cording to a video clip
on Andai= r's site, these are being used by Cirrus and Cessna.

I haven't installed it yet because, despite the fact that ACS shows the
condenser trap on the pic, it must= be ordered separately.  That is ordered.

Seems= that the current thinking is NOT to drain that crap back into theengine (acidic and emulsified with water)= .

Gordon
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