Return-Path: Received: from relay01.roc.ny.frontiernet.net ([66.133.131.34] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 541052 for flyrotary@lancaironline.net; Sun, 21 Nov 2004 16:43:16 -0500 Received-SPF: pass receiver=logan.com; client-ip=66.133.131.34; envelope-from=canarder@frontiernet.net Received: from filter01.roc.ny.frontiernet.net (filter01.roc.ny.frontiernet.net [66.133.131.176]) by relay01.roc.ny.frontiernet.net (Postfix) with ESMTP id 794ED10010 for ; Sun, 21 Nov 2004 21:42:45 +0000 (UTC) Received: from relay01.roc.ny.frontiernet.net ([66.133.131.34]) by filter01.roc.ny.frontiernet.net (filter01.roc.ny.frontiernet.net [66.133.131.176]) (amavisd-new, port 10024) with LMTP id 25779-49-58 for ; Sun, 21 Nov 2004 21:42:45 +0000 (UTC) Received: from JIM2004 (67-137-74-47.dsl2.cok.tn.frontiernet.net [67.137.74.47]) by relay01.roc.ny.frontiernet.net (Postfix) with ESMTP id D93BFFF82 for ; Sun, 21 Nov 2004 21:42:44 +0000 (UTC) Message-ID: <41A10C49.1030909@frontiernet.net> Date: Sun, 21 Nov 2004 15:44:41 -0600 From: Jim Sower User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040514 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: MMO vs 2-cycle (was Re: how do you carry, and measure oil?) References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------050001060300010506020002" X-Antivirus: avast! (VPS 0445-2, 11/04/2004), Outbound message X-Antivirus-Status: Clean X-Virus-Scanned: by amavisd-new-20040701 (2.0) at filter01.roc.ny.frontiernet.net This is a multi-part message in MIME format. --------------050001060300010506020002 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit The RX-7 list is all folks who are dripping crankcase oil into the intake are they not? They aren't pre mixing oil with their gas are they? The lubricating system is a "closed" system. Injecting oil into the intake constitutes a small oil leak OUT of that "closed" system. Pre mix oil blowing past the seals into the crankcase would constitute a small oil leak INTO the system would it not? Just a theory ... Jim S. Russell Duffy wrote: > Just curious, is this increasing oil level we find using pre-mix only > happening because we run such high power all the time? I just spent a > dizzying few minutes searching the RX-7 list for any mention of this > phenomenon, and couldn't find one. Neither of my previous RX-7's (85 > and 93) ever showed any sign of increasing oil level. The 85 injected > oil at the carb, so it would be similar to pre-mix. The 93 was oil > injected, but I also added 4 oz MMO per tank, so there was some pre-mix. > > Rusty (finally off to see if our latest part actually works) > > --------------050001060300010506020002 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit The RX-7 list is all folks who are dripping crankcase oil into the intake are they not? They aren't pre mixing oil with their gas are they? The lubricating system is a "closed" system. Injecting oil into the intake constitutes a small oil leak OUT of that "closed" system. Pre mix oil blowing past the seals into the crankcase would constitute a small oil leak INTO the system would it not?

Just a theory ... Jim S.

Russell Duffy wrote:

Message
Just curious, is this increasing oil level we find using pre-mix only happening because we run such high power all the time? I just spent a dizzying few minutes searching the RX-7 list for any mention of this phenomenon, and couldn't find one. Neither of my previous RX-7's (85 and 93) ever showed any sign of increasing oil level. The 85 injected oil at the carb, so it would be similar to pre-mix. The 93 was oil injected, but I also added 4 oz MMO per tank, so there was some pre-mix.

Rusty (finally off to see if our latest part actually works)

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