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 1026827 for flyrotary@lancaironline.net; Wed, 08 Mar 2006 09:52:36 -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 k28EpisE010946 for ; Wed, 8 Mar 2006 09:51:46 -0500 (EST) Message-ID: <001301c642c0$1dbf53f0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Back in the air Date: Wed, 8 Mar 2006 09:53:52 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01C64296.34A1BBA0" 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_01C64296.34A1BBA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageGreat to hear you are home, Chuck. Having done it away from home, I know what a pain in the rear end it can = be. Also took me approx 8 hours to remove and then replace. Hot sun, = scouring wind, etc. I would appreciate it when you find the time if you would measure the = width of your apex seal slots particularly at the top. My theory is = that used rotarys whose apex seal slots are worn beyond specs combined = with the "softer" hurley type apex seals lead to broken seals and lost = rotors. If your slots spec out within the Mazda limits then that would = tend to discredit that theory - probably much to the relief of those who = have no idea what shape the apex seal slots of their rotors are in. = {:>). =20 Ed ----- Original Message -----=20 From: Chuck Dunlap=20 To: Rotary motors in aircraft=20 Sent: Wednesday, March 08, 2006 9:32 AM Subject: [FlyRotary] Back in the air I have my RV-6 home after driving 13 hours, removing old motor, = installing newly built motor, testing and flew 4 hours home against a = headwind at lower than usual throttle for break-in. The new motor ran = perfectly, no oil leaks, two minor water seeps. Took 9 hours to R&R = motor and 1 hour to tune up and test. It was the rear (in car) rotor that was bad, one missing apex seal = and damage to rotor visible through lower spark plug hole. I have to = attend to my day job now, I will disassemble the old motor tonight and = hopefully have something more to share then. Chuck Dunlap ------=_NextPart_000_0010_01C64296.34A1BBA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Great to hear you are home, Chuck.
 
Having done it away from home, I know what a = pain in the=20 rear end it can be.  Also took me approx 8 hours to remove and then = replace.  Hot sun, scouring wind, etc.
 
I would appreciate it when you find the time if = you would=20 measure the width of your apex seal slots particularly at the top.  = My=20 theory is that used rotarys whose apex seal slots are worn beyond specs = combined=20 with the "softer" hurley type apex seals lead to broken seals and lost=20 rotors.  If your slots spec out within the Mazda limits then that = would=20 tend to discredit that theory - probably much to the relief of those who = have no=20 idea what shape the apex seal slots of their rotors are in. = {:>). =20
 
Ed
 
 
----- Original Message -----
From:=20 Chuck = Dunlap=20
Sent: Wednesday, March 08, 2006 = 9:32=20 AM
Subject: [FlyRotary] Back in = the=20 air

I = have my RV-6=20 home after driving 13 hours, removing old motor, installing newly = built motor,=20 testing and flew 4 hours home against a headwind at lower than usual = throttle=20 for break-in. The new motor ran perfectly, no oil leaks, two minor = water=20 seeps. Took 9 hours to R&R motor and 1 hour to tune up and=20 test.
   =20 It was the rear (in car) rotor that was bad, one missing apex seal and = damage=20 to rotor visible through lower spark plug hole. I have to attend = to my=20 day job now, I will disassemble the old motor tonight  = and=20 hopefully have something more  to share then.
 
Chuck=20 Dunlap
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