Return-Path: Received: from [65.54.168.115] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 542667 for flyrotary@lancaironline.net; Tue, 23 Nov 2004 00:03:34 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.168.115; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 22 Nov 2004 21:03:03 -0800 Message-ID: Received: from 65.54.97.187 by BAY3-DAV11.phx.gbl with DAV; Tue, 23 Nov 2004 05:02:02 +0000 X-Originating-IP: [65.54.97.187] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: how do you carry, and measure oil? Date: Mon, 22 Nov 2004 23:59:23 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01CB_01C4D0EF.4A3FE8C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0009.2900 Seal-Send-Time: Mon, 22 Nov 2004 23:59:23 -0500 X-OriginalArrivalTime: 23 Nov 2004 05:03:03.0193 (UTC) FILETIME=[B60D5090:01C4D119] This is a multi-part message in MIME format. ------=_NextPart_000_01CB_01C4D0EF.4A3FE8C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Re: [FlyRotary] Re: how do you carry, and measure oil? =20 How is the Two Cycle Oil getting into the engine oil sump? =20 Bob Perkinson Bob, I think the oil/fuel mixtur is injected into the combustion = chamber, than comes the compression cycle, when some of the mixture = bypasses the side seals and ends up in the crank case. The fuel vapors = are blown overboard and only minute traces of oil are left behind. = Multiply it by few million repetitions and you end up with extra oil. = That's my theory? Bulent =20 Buly could be right but another possibility is that the side = housings are getting a double dose of oil (one from normal oil system & = one from premix which precipitates out when fuel evaporates in chamber). = The oil control rings are designed to scrape off excess oil and recover = it to crankcase. Tracy ------=_NextPart_000_01CB_01C4D0EF.4A3FE8C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Re: [FlyRotary] Re: how do you carry, and measure = oil?

 
 How is = the Two=20 Cycle Oil getting into the engine oil = sump?
 
Bob=20 Perkinson


Bob,  I think the oil/fuel mixtur is = injected=20 into the combustion chamber, than comes the compression cycle, when = some of=20 the mixture bypasses the side seals and ends up in the crank case. = The fuel=20 vapors are blown overboard and only minute traces of oil are left = behind.=20 Multiply it by few million repetitions and you end up with extra = oil. That=92s=20 my theory?
Bulent
 

Buly could be right but = another=20 possibility is that the side housings are getting a double dose of = oil (one=20 from normal oil system & one from premix which precipitates out = when=20 fuel evaporates in chamber).  The oil control rings are = designed to=20 scrape off excess oil and recover it to = crankcase.
 
Tracy
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