Mailing List flyrotary@lancaironline.net Message #19897
From: Mark R Steitle <mark.steitle@austin.utexas.edu>
Subject: RE: [FlyRotary] Re: Timing
Date: Thu, 7 Apr 2005 14:13:27 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

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:

        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.

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