X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 974737 for flyrotary@lancaironline.net; Wed, 08 Feb 2006 12:49:25 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-025-165.carolina.res.rr.com [24.74.25.165]) by ms-smtp-03-eri0.southeast.rr.com (8.13.4/8.13.4) with SMTP id k18HmdIS002941 for ; Wed, 8 Feb 2006 12:48:41 -0500 (EST) Message-ID: <001301c62cd7$e90641d0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] metering oil pumps Date: Wed, 8 Feb 2006 12:48:46 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01C62CAD.FFEB1A80" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0010_01C62CAD.FFEB1A80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks, Bob. Finally! a benefit to running 100LL {:>). Should I ever = forget to put 2 cycle oil in the gas tank, perhaps I won't totally cook = the seals. Ed ----- Original Message -----=20 From: bmears9413@aol.com=20 To: Rotary motors in aircraft=20 Sent: Wednesday, February 08, 2006 11:57 AM Subject: [FlyRotary] metering oil pumps Yep, that shouldnt be a problem. 20 years ago, when I was racing = rotaries, I ran my metering oil pump wide open at all time and ran an = outside oil source. Never had any problems with stock parts and 10,000 = RPM. Mazda couldnt understand how they stayed together. It was the oil, = but they never believed me. If I ever got the oil too lean it would warp = the apex seals every time. And thats the same problem with the 8's = today, and they still dont believe me. The only difference is the apex = seal is so much smaller it will at least get back some of its orginal = shape after cooling back down. The old 1974 seal would warp and it was = over! What the "smart" people dont understand, is the apex seal = overheating is comming from friction heat. The seal against the rotor = housing without proper lubrication creats a lot more heat than the = combustion heat. And the friction heat never goes away.m Thats a plus on = av gas having lead in i ------=_NextPart_000_0010_01C62CAD.FFEB1A80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thanks, Bob.  Finally! a benefit to running = 100LL=20 {:>).  Should I ever forget to put 2 cycle oil in the gas tank, = perhaps=20 I won't totally cook the seals.
 
Ed
----- Original Message -----
From:=20 bmears9413@aol.com
Sent: Wednesday, February 08, = 2006 11:57=20 AM
Subject: [FlyRotary] metering = oil=20 pumps

Yep, that shouldnt be a problem. 20 years ago, when I was racing=20 rotaries, I ran my metering oil pump wide open at all time and ran an = outside=20 oil source. Never had any problems with stock parts and 10,000 RPM. = Mazda=20 couldnt understand how they stayed together. It was the oil, but they = never=20 believed me. If I ever got the oil too lean it would warp the apex = seals every=20 time. And thats the same problem with the 8's today, and they still = dont=20 believe me. The only difference is the apex seal is so much smaller it = will at=20 least get back some of its orginal shape after cooling back down. The = old 1974=20 seal would warp and it was over! What the "smart" people dont = understand, is=20 the apex seal overheating is comming from friction heat. The seal = against the=20 rotor housing without proper lubrication creats a lot more heat than = the=20 combustion heat. And the friction heat never goes away.m Thats a plus = on av=20 gas having lead in i
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