Message-Id: <5.1.0.14.2.20021003022405.044ee170@earthlink.net>
Date: Thu, 03 Oct 2002 02:27:55 -0400
To: flyrotary@lancaironline.net
From: marv@lancaironline.net
Subject: dynamic balancing
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I was just thumbing through Tracy's site and enjoyed the discussion about 
the various components that make up our little round engines... I always 
learn something over there.  (Like the service note about putting a 
vibration damper on the tension bolts... was I asleep when that was being 
discussed here, or was it simply not discussed?  I have a good memory, it's 
just short <g>.)  While reading I was reminded that the various 
counterweights that are used to keep everything spinning smoothly come in 
various flavors based on other internal components and that reminded me of 
a question I've been meaning to ask but haven't....

Seeing as how I'm getting very close to the time when I'll reassemble my 
collection of parts into a ready-to-run noisemaker it occurs to me that I 
probably should make some effort at getting the rotating parts balanced to 
insure as-smooth-as-possible operation of my engine.  There have been 
mentions on this list of having the rotating components dynamically 
balanced, but I don't remember ever seeing where to get this done, or an 
approximate cost for the service.  Do I just gather up my rotors, e-shaft, 
counterweights, & flywheel and take them to the local Mazda dealer for this 
service, or am I going to have to pack everything up and ship it off to a 
specialist for this service?  To those of you who have built up your 
engines already (or have purchased an engine from Bruce or another 
builder), did you or your builder take this step before final assembly, or 
did you simply put everything back together and trust in faith that the 
spinning masses will be harmonious in their inter-relationships?  All 
comments welcome and appreciated.

        <Marv>