Return-Path: Received: from fed1rmmtao06.cox.net ([68.230.241.33] verified) by logan.com (CommuniGate Pro SMTP 4.2.4) with ESMTP id 453998 for flyrotary@lancaironline.net; Tue, 05 Oct 2004 20:15:15 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.33; envelope-from=daveleonard@cox.net Received: from davidandanne ([68.111.224.107]) by fed1rmmtao06.cox.net (InterMail vM.6.01.03.04 201-2131-111-106-20040729) with SMTP id <20041006001445.EUWJ2048.fed1rmmtao06.cox.net@davidandanne> for ; Tue, 5 Oct 2004 20:14:45 -0400 From: "DaveLeonard" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: Low power 13B Operation Date: Tue, 5 Oct 2004 17:14:47 -0700 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002A_01C4AAFE.D08E5360" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-Reply-To: X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_002A_01C4AAFE.D08E5360 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit MessageJohn, really sorry to hear that. More like a major set back. I suggest you re-build it your self. Can be done by a first timer in a few days. Since you won't have much cleaning to do and can re-use most of the apex seals, it will cost only a few hundred bucks in gaskets, supplies, tools and a single replacement seal. If you want, you can ship your new turbo to me for save keeping (heck, you're only going to destroy it too). :-) Dave Leonard Well, they say a picture is worth 1000 words. In this case the picture is worth about 1000 dollars. :( The compression tester prints a tape showing the compression pulses. On rotor 2 it looks fine. 3 peaks for every cycle. On rotor 1 there's one peak, one tiny blip, then nothing. 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...... John (just a minor set back) ------=_NextPart_000_002A_01C4AAFE.D08E5360 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
John,=20 really sorry to hear that.
 
More=20 like a major set back.  I suggest you re-build it your = self.  =20 Can be done by a first timer in a few days.  Since you won't have = much=20 cleaning to do and can re-use most of the apex seals, it will cost only = a few=20 hundred bucks in gaskets, supplies, tools and a single replacement=20 seal.
 
If you=20 want, you can ship your new turbo to me for save keeping (heck, you're = only=20 going to destroy it too).  :-)
 
Dave=20 Leonard
 
Well, they say a picture is worth 1000 words. =
In=20 this case the picture is worth about 1000 dollars. = :(
 
The=20 compression tester prints a tape showing the compression pulses. On = rotor 2 it=20 looks fine. 3 peaks for every cycle. On rotor 1 there's one peak, one = tiny=20 blip, then nothing. I took off the exhaust manifold and, sure enough, = two of=20 the seals are shiny and spring back about 1/16 inch when you press = them=20 (hard). The other seal is intact, but not shiny and only springs back = maybe=20 1/32 when pushed. It IS moving, so it's not a stuck seal - sounds like = the=20 side seals are gone. We'll know more when the Mazda guy gets the = engine comes=20 apart......
 
John=20 (just a minor set back)
 
 
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