Mailing List flyrotary@lancaironline.net Message #33502
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Engine alignment
Date: Tue, 5 Sep 2006 10:55:21 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Dale,
 
 Boy, seems like a lot of work either way.  I am not certain you need that kind of accuracy (particularly for a test stand).  I think I would determine the center of the e shaft (pretty easy to do with the flywheel nut on) and perhaps a bit harder on the pulley end (depending on whether a stock or after market pulley) and then hang the engine and use a carpenter's square (or something similar) attached to your firewall (or front end) wherever you want the e shaft center line to be.  Then align the engine until the flywheel nut center line and pulley center line with your reference (T square point). 
 
Ed
 
 
----- Original Message -----
Sent: Tuesday, September 05, 2006 10:09 AM
Subject: [FlyRotary] Engine alignment

Hi All,

   Okay, I admit I'm taking the easy way out.  I haven't done an
exhaustive search of the archives.  Is there an easy way to
ascertain the eccentric shaft centerline, for purposes of designing
an engine mount?  I've decided I want to try a plugs-up mount for
my test stand.  Some things might be easier to fit in, using that
orientation.

   So far, only two strategies have come to mind: take the eccentric
shaft out, and replace it with two apertures; or machine a pointed
mandrel which can be bolted to the pulley flange.

Dale R.
COZY MkIV #1254


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