X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 16 May 2006 23:03:35 -0400 Message-ID: X-Original-Return-Path: Received: from outbound-mail.lax.untd.com ([64.136.28.164] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with SMTP id 1115291 for lml@lancaironline.net; Mon, 15 May 2006 23:33:49 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.136.28.164; envelope-from=glong2@netzero.net Received: from outbound28-2.lax.untd.com (smtp02.lax.untd.com [10.130.24.122]) by smtpout07.lax.untd.com with SMTP id AABCGUT8EASQAYRS for (sender ); Mon, 15 May 2006 20:32:20 -0700 (PDT) Received: (qmail 2649 invoked from network); 16 May 2006 03:32:18 -0000 Received: from unknown (63.18.123.140) by smtp02.lax.untd.com with SMTP; 16 May 2006 03:32:18 -0000 From: "glong2" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] Re: Positive Crankcase Vacuum X-Original-Date: Mon, 15 May 2006 21:32:07 -0600 X-Original-Message-ID: <003c01c67899$50bd7200$8c7b123f@your4dacd0ea75> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003D_01C67867.06230200" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcZ4c6TpHNbOErx4SEeNA+4jcGRNPQAIvNdw In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 X-ContentStamp: 14:7:1451874543 X-MAIL-INFO:349ccc0d9c5525ac55ec19ec7d782868f14db189657d9169886d1cc5005dc1712969250909e1a579d8a94d6c5555f5e99cb10dacd56d4545087d21fcbc01793c X-UNTD-OriginStamp: QLtLkOW1eqYBwH/v5e7EP81VoqvmplFxfBfz9UZOaCuN+Jiz2euVpA== X-UNTD-Peer-Info: 10.130.24.122|smtp02.lax.untd.com|outbound28-2.lax.untd.com|glong2@netzero.net This is a multi-part message in MIME format. ------=_NextPart_000_003D_01C67867.06230200 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Doug: =20 Here is my experience with crankcase vacuum.=20 =20 I installed the oil vent with a =BE=94 tube ground at about a 30 degree = angle to the wind velocity to give a crankcase vacuum. I had a lot of oil on the belly and I speculate the oil/water/air mixture was sucked out before it could condense on any metal surfaces.=20 =20 I installed a homemade oil condenser between the crankcase and the = outlet tube and collected little oil/water products in the condenser drain. Was = my flow too high for the condenser? =20 I then changed the angle of the outlet tube to about 10 degrees. The oil = on the belly was less and I collected less than a teaspoon of condensate in = the condenser after a two hour flight.=20 =20 I have now made the outlet flat with the belly but have not flown since = the modification. I am expecting less oil on the belly. As far as the power = is concerned, I doubt if I am changing crankcase pressure enough to notice = it =96 more testing to come. =20 Eugene Long Lancair Super ES glong2@netzero.net _____ =20 From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Douglas Brunner Sent: Monday, May 15, 2006 5:02 PM To: Lancair Mailing List Subject: [LML] Re: Positive Crankcase Vacuum =20 Thanks for the comments. =20 I hope to be able to judge for myself the increase in horsepower on a = dyno. Mike Moore of AvWorks has extended to me the offer of being able to run my engine (under close supervision) on a dyno after it is built. I am looking forward to this for many reasons, not the least of which is being able to see exactly how much horsepower = I am getting. =20 The other benefits you mention are nice as well and you forgot to = mention how nice and clean the belly of my plane will look. =20 D. Brunner ------=_NextPart_000_003D_01C67867.06230200 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Doug:

Here is my experience with = crankcase vacuum.

I installed the oil vent with a = =BE” tube ground at about a 30 degree angle to the wind velocity to give a = crankcase vacuum. I had a lot of oil on the belly and I speculate the = oil/water/air mixture was sucked out before it could condense on any metal surfaces. =

I installed a homemade oil = condenser between the crankcase and the outlet tube and collected little oil/water products in the condenser drain. Was my flow too high for the = condenser?

I then changed the angle of the = outlet tube to about 10 degrees. The oil on the belly was less and I collected = less than a teaspoon of condensate in the condenser after a two hour flight. =

I have now made the outlet flat = with the belly but have not flown since the modification. I am expecting less oil = on the belly. As far as the power is concerned, I doubt if I am changing = crankcase pressure enough to notice it – more testing to = come.

Eugene Long

Lancair Super ES

glong2@netzero.net

From: = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Douglas Brunner
Sent: Monday, May 15, = 2006 5:02 PM
To: Lancair Mailing = List
Subject: [LML] Re: = Positive Crankcase Vacuum

Thanks for the comments.

I hope to be able to judge for myself the increase in horsepower on a dyno. Mike Moore of AvWorks has extended to me = the

offer of being able to run my engine (under close supervision) on a dyno after it is built. I am looking forward to = this for many reasons,
not the least of which is being able to see exactly how much horsepower = I am getting.

The other benefits you mention are nice as well and = you forgot to mention how nice and clean the belly of my plane will = look.

D. Brunner

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