X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: \eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from [129.116.87.170] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 860812 for flyrotary@lancaironline.net; Thu, 07 Apr 2005 15:14:12 -0400 Received-SPF: none receiver=logan.com; client-ip=129.116.87.170; envelope-from=mark.steitle@austin.utexas.edu X-MIMEOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C53BA5.E06F3033" Subject: RE: [FlyRotary] Re: Timing Date: Thu, 7 Apr 2005 14:13:27 -0500 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69EC08172@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: Timing Thread-Index: AcU7o/FqYTcqTxklSvqKWIS+a6DF2gAAZC1Q From: "Mark R Steitle" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C53BA5.E06F3033 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Why don't you just copy the Mazda timing ring and cut a few extra holes in it to lighten it up. You could cut it to look like a miniature auto trans flex plate. Also, don't forget about metal fatigue. Aluminum is much more susceptible to that. =20 =20 Mark S. (I'll go back to sleep now) =20 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bill Dube Sent: Thursday, April 07, 2005 1:59 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Timing =20 At 11:15 AM 4/7/2005, you wrote: Could a little piece of a magnetic rod embedded in either steel or Al disc (flywheel, pulley, etc.) do the trick? I always thought magnetic pickups actually involved a magnet, or at least a dominant spike of metal passing the pickup. Yes, this is possible. I have operated a pip sensor with a steel set screw in an aluminum disk before. However, a steel "ring gear" would be a better bet. You know it will work if you made it look like the stock timing disk. It would be less likely to vibrate out of position unnoticed.=20 >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------_=_NextPart_001_01C53BA5.E06F3033 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Why don’t you just copy the = Mazda timing ring and cut a few extra holes in it to lighten it up.  You = could cut it to look like a miniature auto trans flex plate.  Also, don’t = forget about metal fatigue.  Aluminum is much more susceptible to that.  =

 

Mark = S.

(I’ll go back to sleep = now)

 

From: = Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net] On Behalf Of Bill = Dube
Sent: Thursday, April 07, = 2005 1:59 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Timing

 

At 11:15 AM 4/7/2005, you wrote:

        Co= uld a little piece of a magnetic rod embedded in either steel or Al disc = (flywheel, pulley, etc.) do the trick?  I always thought magnetic pickups = actually involved a magnet, or at least a dominant spike of metal passing the = pickup.


        Yes, this = is possible. I have operated a pip sensor with a steel set screw in an = aluminum disk before. However, a steel "ring gear" would be a better = bet. You know it will work if you made it look like the stock timing disk. It = would be less likely to vibrate out of position unnoticed. = 

>>  Homepage:  http://www.flyrotary.com/

>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
------_=_NextPart_001_01C53BA5.E06F3033--