Return-Path: <13brv3@bellsouth.net> Received: from imf16aec.mail.bellsouth.net ([205.152.59.64] verified) by logan.com (CommuniGate Pro SMTP 4.2.4) with ESMTP id 453996 for flyrotary@lancaironline.net; Tue, 05 Oct 2004 19:56:26 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.64; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf16aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20041005235557.ZIBR1718.imf16aec.mail.bellsouth.net@rd> for ; Tue, 5 Oct 2004 19:55:57 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Low power 13B Operation Date: Tue, 5 Oct 2004 18:55:57 -0500 Message-ID: <011701c4ab36$dd8151c0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0118_01C4AB0C.F4AB49C0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0118_01C4AB0C.F4AB49C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I took off the exhaust manifold and, sure enough, two of the seals are = shiny and spring back about 1/16 inch when you press them (hard). The other = seal is intact, but not shiny and only springs back maybe 1/32 when pushed. = It IS moving, so it's not a stuck seal - sounds like the side seals are gone. We'll know more when the Mazda guy gets the engine comes apart......=20 =20 Oh man, another kick in the groin... Sorry to hear about that. =20 =20 As Ed said, if it's not shiny, that's the problem. There is still a slim chance that the groove has some carbon or something that's formed around = the edge, and is keeping the seal from springing all the way out. I would absolutely spend some time trying to free this apex seal, before even thinking about having the engine torn down. What have you got to lose? = =20 =20 If you do tear it down, go ahead and order some of those seals that = Tracy's selling Turbo Boy. I wonder if he would warrantee them against "John Slade"... Nay, he's smarter than that :-) =20 Rusty (I turn my prop through every time I see the plane) =20 =20 ------=_NextPart_000_0118_01C4AB0C.F4AB49C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
I took off the=20 exhaust manifold and, sure enough, two of the seals are shiny and spring = back=20 about 1/16 inch when you press them (hard). The other seal is intact, = but not=20 shiny and only springs back maybe 1/32 when pushed. It IS moving, so = it's not a=20 stuck seal - sounds like the side seals are gone. We'll know more when = the Mazda=20 guy gets the engine comes apart...... 
 
Oh man, = another kick in the=20 groin...  Sorry to hear about=20 that.    
 
As Ed said, if it's not shiny, = that's the=20 problem. There is still a slim chance that the groove has some carbon or = something that's formed around the edge, and is keeping the seal from = springing=20 all the way out.  I would absolutely spend some time trying to free = this=20 apex seal, before even thinking about having the engine torn down.  = What=20 have you got to lose?  
 
If you do tear it down, go = ahead and order=20 some of those seals that Tracy's selling Turbo Boy.  I wonder if he = would=20 warrantee them against "John Slade"... Nay, he's smarter than that=20 :-)
 
Rusty (I turn my prop through = every time I=20 see the plane)
 
 
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