Mailing List flyrotary@lancaironline.net Message #25543
From: sboese <sboese@uwyo.edu>
Subject: Apex seal wear
Date: Mon, 1 Aug 2005 16:32:13 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
List members,

I tore down my running 1986 NA 13B to check for wear as part of the final
assembly of my RV-6A.  A picture of two apex seals is attached.  The total
clearance between the apex seals with the ends touching is 0.006", 0.003"
from each seal.  This is typical of all the apex seals.  The rotor housings
appear to be worn on the edges to match the end portions of the apex seals
and this is the only apparent wear to be seen on them.  Is this a normal
wear pattern?  Will new seals (Tracy's new seals in particular) seat to the
rotor housings?

Thanks for any advice you may give.

Steve Boese
RV6A, 86NA13B, EC2, RD1A, Wyoming


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