X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from web83914.mail.sp1.yahoo.com ([69.147.92.123] verified) by logan.com (CommuniGate Pro SMTP 5.3.11) with SMTP id 4674059 for flyrotary@lancaironline.net; Thu, 13 Jan 2011 22:37:23 -0500 Received-SPF: none receiver=logan.com; client-ip=69.147.92.123; envelope-from=keltro@att.net Received: (qmail 81931 invoked by uid 60001); 14 Jan 2011 03:36:49 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1294976209; bh=6JcDSYZn61q4lAQiCkKxOCn9AoB0kIPYMckj+QufwJQ=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=Ksc9FZJWk69DxIwzF4n+psw5uYGo6TzSU/7qxkHllnBEeaNmpSmN3x5nvI5uZXRd9wThZz+RN5hg864MGwpr8dSkENF2fqkkZ3PNMfCtg9SG4wqrf7dQ7V2bODmOm5/v7hyNqil0VI9Vchd90BsJ+AU+TAs6WjOgQCp5nVDv6ww= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=att.net; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=pMG5heyDoO0zI+q0Bo7h18iaOPwZCgv1aSFZoRnvdD7WRgldPd9mYz9iOkaWVo0FQvdJMg1kHonhoHXGsUJHGvkFyEO2pafYksewGy7zfAMaL0oR18CofFtkKsuq4J0oYyalmLmhMSE7dkRqm93zwN8GCDqJZ7rQQ3SKobqy9Gs=; Message-ID: <867989.80828.qm@web83914.mail.sp1.yahoo.com> X-YMail-OSG: MmtgIRYVM1kmw9djzbuWcoBsFI8P6n7vHvjbyZcjutJCyDp 73N37PulzttUX3gEWBL8uM0pEQn6w26QdnlZvJ5CTNZIs4vQdNRLyu1wo.CY XLuAqWNXKapHu.T5AWRHD.WVkPIAznvgBm1FHxG.5RHMnoRtlPB.c14ygHRu 4WqipKw2nWiIjql7tnZCL52g20uxz1_QgPtBjCG.ZFMidqZu_xrZO0l8rlik AfinhanwfoqZNbn4gi7DWyrsCtjZDwcNlNc6gs1pj0qsy94j6gw_eGe92mgm b6v93 Received: from [208.114.38.109] by web83914.mail.sp1.yahoo.com via HTTP; Thu, 13 Jan 2011 19:36:49 PST X-Mailer: YahooMailRC/555 YahooMailWebService/0.8.107.285259 References: Date: Thu, 13 Jan 2011 19:36:49 -0800 (PST) From: Kelly Troyer Subject: Re: [FlyRotary] Apex seal update cont To: Rotary motors in aircraft In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-2092521723-1294976209=:80828" --0-2092521723-1294976209=:80828 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Chris,=0A=A0 Have not heard of bad RA springs but has anyone in the racing = crowd (Turbo)=0A=A0ever mentioned detonation as a suspect in flattened apex= seal springs and/or=0A=A0broken corner seals and flattened springs ??.....= .........=0A=0AKelly Troyer=0A"DYKE DELTA JD2" (Eventually)=0A"13B ROTARY"_= Engine=0A"RWS"_RD1C/EC2/EM2=0A"MISTRAL"_Backplate/Oil Manifold=0A"TURBONET= ICS"_TO4E50 Turbo=0A=0A=0A=0A=0A________________________________=0AFrom: Ch= ris Barber =0ATo: Rotary motors in aircraft =0ASent: Thu, January 13, 2011 8:49:13 PM=0ASubjec= t: [FlyRotary] Apex seal update cont=0A=0A=0AI pulled the rear iron tonight= to check the apex seals.=A0 Luckily, the apex seals =0Athemselves look goo= d.=A0 Also, the=A0combustion chamber looks as I think it should.=A0 =0AHowe= ver, I did find some issues.=0A=A0=0AThe one I was expecting was that the a= pex springs were flat.=A0 Also, one of the =0Aapex corner seal plugs was br= oken as was a small piece off of one of the side =0Aseals.=A0 No=A0damage w= as apparent inside the chamber so I think they broke as I was =0Ataking the= m out.=A0 Donno, but there is not=A0apparent damage inside at all.=0A=A0=0A= Also, the springs for the corner seals were flat. =0A=A0=0AThe really stran= ge thing to me is that the rubber apex corner seal plugs, the =0Alittle rub= ber inserts that seems to hold the assemble together were gone....none =0Ao= f the six were anywhere to be found.=A0 This engine has not been overheated= to =0Aany abusive degree, but the inserts were gone.=0A=A0=0AI am still wa= iting for the Mazda apex seal springs to=A0arrive from Mazdatrix.=A0 I =0Aw= ill now need to order the rubber inserts as well and the corner springs and= =0Await for them to arrive.=0A=A0=0AThoughts?=0A=A0=0AI on an=A0RX7 forum = that some of the early RA springs are now known to be weak =0Alinks.=A0 =0A= =0A=A0=0AI am attaching some photos. Note, the springs are laying on their = sides.=0A=A0=0AAll the best,=0A=A0=0AChris Barber=0AHouston --0-2092521723-1294976209=:80828 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
=0A
Chris,
=0A
  Have not heard of bad RA= springs but has anyone in the racing crowd (Turbo)
 ever mentioned= detonation as a suspect in flattened apex seal springs and/or
=0A broken corner seals and flattened springs ??..............
=0A<= DIV> =0A

Kelly Troyer
"DYKE DELTA JD= 2" (Eventually)

=0A

"13B ROTARY"= _ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold

=0A"TURBONETICS"_TO4E50 Turbo

=0A

=0A

=0A
=0A
=0AFrom: Chris Barber <cbarber@texasattorney.net>
To: Rotary motors in aircraft &l= t;flyrotary@lancaironline.net>
S= ent: Thu, January 13, 2011 8:49:13 PM
Subject: [FlyRotary] Apex seal update cont

=0A=0A=0A<= DIV style=3D"FONT-FAMILY: Tahoma; DIRECTION: ltr; COLOR: #000000; FONT-SIZE= : 10pt">=0A

I pulled the rear iron tonight to check the apex seals. = Luckily, the apex seals themselves look good.  Also, the combust= ion chamber looks as I think it should.  However= , I did find some issues.

=0A

 

=0A

The one I was expecting = was that the apex springs were flat.  Also, one of the apex corner sea= l plugs was broken as was a small piece off of one of the side seals. = No damage was apparent inside the chamber so I = think they broke as I was taking them out.  Donno, but there is not apparent damage inside at all.

=0A

 

=0A

Also, the springs for the= corner seals were flat.

=0A

 

=0A

The really strange thing= to me is that the rubber apex corner seal plugs, the little rubber inserts= that seems to hold the assemble together were gone....none of the six were= anywhere to be found.  This engine has not been overheated to any abu= sive degree, but the inserts were gone.

=0A

 

=0A

I am still= waiting for the Mazda apex seal springs to arrive from Mazdatrix.  I will= now need to order the rubber inserts as well and the corner springs and wa= it for them to arrive.

=0A

 

=0A

Thoughts?

=0A

 =0A

I on an RX7 forum = that some of the early RA springs are now known to be weak links.  =0A

 

=0A

I am attaching some photos. Note, the springs are la= ying on their sides.

=0A

 

=0A

All the best,

=0A

 =

=0A

Chris Barber

=0A

Houston

<= /html> --0-2092521723-1294976209=:80828--