X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.101] (HELO ms-smtp-02-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3.5) with ESMTP id 1020943 for flyrotary@lancaironline.net; Fri, 24 Jun 2005 19:49:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.101; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-065-188-083-049.carolina.res.rr.com [65.188.83.49]) by ms-smtp-02-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j5ONmsl9014246 for ; Fri, 24 Jun 2005 19:48:55 -0400 (EDT) Message-ID: <002d01c57917$492de380$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Engine Rebuild corner seal. Date: Fri, 24 Jun 2005 19:48:56 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002A_01C578F5.C1D24230" 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_002A_01C578F5.C1D24230 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Lynn, No way I could prove it in any case. However, as Rusty suggested if the = seal piece were somehow trapped in one of the lightening holes milled = near the rotor tips, it might just have enough room to rotate. The Hot = spots were both near the (near the exhaust port on the iron side = housings. No evidence of any overheating, scraps or anything on the = rotor housing. The hot spots were in just a tad further toward the = center than the inner most part of the corner seals. =20 When I get the photos from my nephew, I'll post them and perhaps they = will mean something to someone. =20 The things that are factual are : 1. The apex seal piece was missing upon disassembly 2. The engine was so initially so tight it would not idle below 2000 = rpm 3. It took a jumper cable to assist the aircraft battery on initial = start up 4. With continued running the engine loosened up until after two hours = it felt free and normal 5. The bearings (new on the rotors) did not have any signs of scuffing = or unusual wear marks This rebuild has none of the tightness and the compression is improved, = so if not a piece of the missing seal, I am at a lost to figure out what = contributed to this scenario. Ed ----- Original Message -----=20 From: Lehanover@aol.com=20 To: Rotary motors in aircraft=20 Sent: Friday, June 24, 2005 5:17 PM Subject: [FlyRotary] Re: Engine Rebuild corner seal. In a message dated 6/24/2005 12:26:46 PM Pacific Daylight Time, = 13brv3@bellsouth.net writes: I am certainly open to other hypothesis that explains the two hot = spots across from one another. =20 I doubt that you or the starter motor could turn it over with a corner = seal trapped as you suspect.=20 Where on the irons was the hot spot? Lynn E. Hanover ------=_NextPart_000_002A_01C578F5.C1D24230 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Lynn,
 
No way I could prove it in any case.  However, = as Rusty=20 suggested if the seal piece were somehow trapped in one of the = lightening holes=20 milled near the rotor tips, it might just have enough room to = rotate.  The=20 Hot spots were both near the (near the exhaust port on the iron side=20 housings.  No evidence of any overheating, scraps or anything on = the rotor=20 housing.  The hot spots were in just a tad further toward the = center than=20 the inner most part of the corner seals. 
 
When I get the photos from my nephew, I'll post them = and=20 perhaps they will mean something to someone. 
 
The things that are factual are :
 
1.  The apex seal piece was missing upon=20 disassembly
 
2.  The engine was so initially so tight it = would not=20 idle below 2000 rpm
 
3.  It took  a jumper cable to assist the = aircraft=20 battery on initial start up
 
4.  With continued running the engine loosened = up until=20 after two hours it felt free and normal
 
5.  The bearings (new on the rotors) did not = have any=20 signs of scuffing or unusual wear marks
 
This rebuild has none of the tightness and the = compression is=20 improved, so if not a piece of the missing seal, I am at a lost to = figure out=20 what contributed to this scenario.
 
Ed
----- Original Message -----
From:=20 Lehanover@aol.com
Sent: Friday, June 24, 2005 = 5:17 PM
Subject: [FlyRotary] Re: Engine = Rebuild=20 corner seal.

In a message dated 6/24/2005 12:26:46 PM Pacific Daylight Time, = 13brv3@bellsouth.net = writes:
I am certainly open to other hypothesis that = explains=20 the two hot spots across from one another.  =20
 
I doubt that you or the starter motor could turn it over with a = corner=20 seal trapped as you suspect.
 
Where on the irons was the hot spot?
 
Lynn E. Hanover
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