X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmfepo201.cox.net ([68.230.241.146] verified) by logan.com (CommuniGate Pro SMTP 5.4c2o) with ESMTP id 4884711 for flyrotary@lancaironline.net; Mon, 28 Feb 2011 01:30:39 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.146; envelope-from=alventures@cox.net Received: from fed1rmimpo03.cox.net ([70.169.32.75]) by fed1rmfepo201.cox.net (InterMail vM.8.01.04.00 201-2260-137-20101110) with ESMTP id <20110228063004.UEMP16474.fed1rmfepo201.cox.net@fed1rmimpo03.cox.net> for ; Mon, 28 Feb 2011 01:30:04 -0500 Received: from BigAl ([72.199.216.14]) by fed1rmimpo03.cox.net with bizsmtp id DJW31g00H0KDB3c04JW4YB; Mon, 28 Feb 2011 01:30:04 -0500 X-VR-Score: -100.00 X-Authority-Analysis: v=1.1 cv=1LdCQuPFu5+SokYlX97zUB/gC+J6QCnVCdc/oYcInGI= c=1 sm=1 a=B9PaJCCeMWsA:10 a=TPvrVRyicAsl4VeEYn0L5g==:17 a=Ia-xEzejAAAA:8 a=3oc9M9_CAAAA:8 a=PZJbxUP5jjWdqApd6k8A:9 a=JTnocRty-Uks4zZaTGAA:7 a=L5aCnpTgkalzyYVqegIrZWzZYiwA:4 a=CjuIK1q_8ugA:10 a=EzXvWhQp4_cA:10 a=U8Ie8EnqySEA:10 a=Kcv5ZZf46tzVVlyf:21 a=sVp1snpUD-Or4G9w:21 a=yMhMjlubAAAA:8 a=-9VjN9bQHmfrX1UIqlEA:9 a=IDr0vow0kDYM7_oSrPAA:7 a=kaB9roBE7RR_5AFv17ChiC1CHZIA:4 a=TPvrVRyicAsl4VeEYn0L5g==:117 X-CM-Score: 0.00 Authentication-Results: cox.net; none From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Steve Boese TDC Finder Date: Sun, 27 Feb 2011 22:30:27 -0800 Message-ID: <8F89CA163C9941A290E3414059F501AB@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0023_01CBD6CD.EF235120" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6863 Importance: Normal Thread-Index: AcvW2+ZKtF++QEseRCizILySbs1BCAAMvUMg X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5994 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0023_01CBD6CD.EF235120 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Of course there is always the way that doesn't require any parts - well; maybe a piece of wire, or something to use as a pointer near the teeth = on the flywheel ring gear. =20 -Remove the rotor 1 spark plugs (and one from rotor 2 to relieve the compression).=20 -Turn the engine until the tip seal on rotor 1 is in the center of the leading plug hole. Mark the gear tooth at the pointer. -Turn the engine until the same tip seal is visible in the trailing plug hole. Mark the tooth at the pointer. -Now turn the engine back to the gear tooth at the pointer that is half = way between the 2 marked. The tip seal is now at TDC. -The center of the combustion chamber is 60o on the rotor from the tip = seal; or 120o on the E-shaft. - Count the total number of teeth on the ring gear, and divide by 3. Now rotate the engine by that number of teeth (either direction) and rotor 1 will be at TDC. =20 Al G =20 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Steven W. Boese Sent: Sunday, February 27, 2011 4:10 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Steve Boese TDC Finder =20 I like this better than what I came up with. It will be easier to find = the parts and assembly will also be easier since none of the initial parts = need to be modified. As long as one is careful not to draw the water or oil = into the engine, it will also be easier to use. Although there always seems = to be a better way to do something, this seems as good and simple as it can get. No more excuses for not knowing where TDC is. =20 Steve Boese =20 =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of bktrub@aol.com Sent: Sunday, February 27, 2011 2:35 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Steve Boese TDC Finder =20 You can get an air hold, essentially a spark plug hole adapter that goes = on a compressed air hose, for about $6 at NAPA. It's used to hold a valve = in place while you change the valve seals. You can use it to find TDC by putting it in the plug hole, running a tube to it and putting the end = in a jar of water or oil. Turn the engine slowly until the point where the bubbles stop and the water just starts to go up the tube. That's TDC. =20 Brian Trubee =20 -----Original Message----- From: dlomheim@aol.com To: Rotary motors in aircraft Sent: Fri, Feb 25, 2011 8:10 pm Subject: [FlyRotary] Steve Boese TDC Finder Steve: Please don't think your cool invention wasn't appreciated by = those of us at Paduca... I for one grabbed one and plan on using it to find = TDC prior to re-installing my CAS... =20 CYA =20 =20 Doug Lomheim RV-9A ; 13B FWF =20 =20 ------=_NextPart_000_0023_01CBD6CD.EF235120 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Of course there is always the way = that doesn’t require any parts – well; maybe a piece of wire, or something to use as a pointer near the teeth on the flywheel ring = gear.

 

-Remove the rotor 1 spark plugs = (and one from rotor 2 to relieve the compression).

-Turn the engine until the tip = seal on rotor 1 is in the center of the leading plug hole.  Mark the gear = tooth at the pointer.

-Turn the engine until the = same tip seal is = visible in the trailing plug hole. Mark the tooth at the pointer.

-Now turn the engine back to the = gear tooth at the pointer that is half way between the 2 marked.  The = tip seal is now at TDC.

-The center of the combustion = chamber is 60o= on the rotor from the tip seal; or = 120o on the = E-shaft.

- Count the total number of teeth = on the ring gear, and divide by 3. Now rotate the engine by that number of = teeth (either direction) and rotor 1 will be at TDC.

 

Al G

 

-----Original = Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Steven W. Boese
Sent: Sunday, February = 27, 2011 4:10 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Steve Boese TDC Finder

 

I like this better than what I came up with.  It will be easier to find = the parts and assembly will also be easier since none of the initial parts need to = be modified.  As long as one is careful not to draw the water or oil = into the engine, it will also be easier to use.  Although there always seems = to be a better way to do something, this seems as good and simple as it can get.  No more excuses for not knowing where TDC = is.

 

Steve Boese

 

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of bktrub@aol.com
Sent: Sunday, February = 27, 2011 2:35 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Steve Boese TDC Finder

 

You can get an air hold, essentially a spark plug hole adapter that goes on a compressed air hose, for about $6 at NAPA. It's used to hold a valve in = place while you change the valve seals. You can use it to find TDC by putting = it in the plug hole, running a tube  to it and putting the = end in a jar of water or oil. Turn the engine slowly until the point where the = bubbles stop and the water just starts to go up the tube. That's = TDC.

 

Brian Trubee

 

-----Original Message-----
From: dlomheim@aol.com
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Fri, Feb 25, 2011 8:10 pm
Subject: [FlyRotary] Steve Boese TDC Finder

Steve:  Please don't think your cool invention wasn't appreciated by those of us = at Paduca... I for one grabbed one and plan on using it to find TDC prior = to re-installing my CAS...

 

CYA  <= /span>

 

Doug Lomheim

RV-9A ; 13B FWF 

 

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