X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: (direct reply)\eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from [24.25.9.100] (HELO ms-smtp-01-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 866884 for flyrotary@lancaironline.net; Tue, 12 Apr 2005 18:53:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-185-127.carolina.res.rr.com [24.74.185.127]) by ms-smtp-01-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j3CMqvLw013850 for ; Tue, 12 Apr 2005 18:52:58 -0400 (EDT) Message-ID: <002701c53fb2$6153af10$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: The Final? story on the engine problem Date: Tue, 12 Apr 2005 18:53:01 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0024_01C53F90.DA100290" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0024_01C53F90.DA100290 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable No, George I did not. This was assembled back in 2001 and did not think = to check the apex grove, however, I do think I detected a bit of a "V" = shape to at least one. I am going to go back out and measure it to see = whether it was my imagination or real. Thanks for the suggestion of the Rx-8 Rotors they are quite a bit = cheaper than the 9.7:1 for the NA 91. However, Mazdatrix has not found = anyone to mill them for the Rx-7 Apex seal, yet. They told me to check = back in a couple of weeks. Ed ----- Original Message -----=20 From: George Lendich=20 To: Rotary motors in aircraft=20 Sent: Tuesday, April 12, 2005 6:44 PM Subject: [FlyRotary] Re: The Final? story on the engine problem Ed, Did you check side clearances in the apex groove before assembly? George ( down under) ----- Original Message -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 Sent: Wednesday, April 13, 2005 5:15 AM Subject: [FlyRotary] The Final? story on the engine problem Second set of photos=20 Photo Apex Scrapes shows that the ejected apex seal piece probably = made it around the chamber a couple of times, one impression looks to be = smaller than the width of the ejected piece - so perhaps it broke up = further in its round. Photo Apex Slot Peened shows that the 2nd apex seal of #1 rotor that = would not move up and down - clear why, now. The departing piece peened = over the slot and froze the seal in its slot. I had to pry the opposite = end of the seal up to the position you see. Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com -------------------------------------------------------------------------= --- >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0024_01C53F90.DA100290 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

No, George I did not. This was = assembled back=20 in 2001 and did not think to check the apex grove, however, I do think I = detected a bit of a "V" shape to at least one. I am going to = go back=20 out and measure it to see whether it was my imagination or = real.

Thanks for the suggestion of the Rx-8 = Rotors they=20 are quite a bit cheaper than the 9.7:1 for the NA 91. However, = Mazdatrix=20 has not found anyone to mill them for the Rx-7 Apex seal, yet. = They told=20 me to check back in a couple of weeks.

----- Original Message -----
From:=20 George=20 Lendich
To: Rotary motors in = aircraft

Sent: Tuesday, April 12, 2005 = 6:44=20 PM

Subject: [FlyRotary] Re: The = Final? story=20 on the engine problem

Ed,

Did you check side clearances in the = apex groove=20 before assembly?

George ( down under)

----- Original Message -----
From:=20 Ed Anderson
To: Rotary motors in = aircraft=20

Sent: Wednesday, April 13, = 2005 5:15=20 AM

Subject: [FlyRotary] The = Final? story=20 on the engine problem

Second set of photos

Photo Apex Scrapes shows that the = ejected apex=20 seal piece probably made it around the chamber a couple of = times, one=20 impression looks to be smaller than the width of the ejected piece - = so=20 perhaps it broke up further in its round.

Photo Apex Slot Peened shows that = the 2nd apex=20 seal of #1 rotor that would not move up and down - clear why, = now. The=20 departing piece peened over the slot and froze the seal in its = slot. I=20 had to pry the opposite end of the seal up to the position you=20 see.

Ed Anderson
Rv-6A N494BW Rotary=20 Powered
Matthews, NC
eanderson@carolina.rr.com

>> Homepage: =20 http://www.flyrotary.com/
>> Archive: =20 = http://lancaironline.net/lists/flyrotary/List.html

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