Mailing List flyrotary@lancaironline.net Message #52172
From: Mark Steitle <msteitle@gmail.com>
Subject: Re: [FlyRotary] psru seals
Date: Mon, 20 Sep 2010 08:14:57 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
John,
 
I had heard about a Marcotte seal failure, but didn't hear the details.  And yes, I definitely plan to put a mechanical fastener which will mechanically capture the seal.  While I can't recommend this fix to everyone, you can bet that I won't be riding in any other a/c that hasn't had this mod done to the gearbox. 
 
Mark
 

On Mon, Sep 20, 2010 at 7:44 AM, John <downing.j@sbcglobal.net> wrote:
Mark, I would definitely look into a mechanical retention on the oil seal.  In May I lost the output shaft seal on my Marcotte Redrive, the gear box apparently expanded enough from heat to eject the seal.  We haven't had the time to look into the gearbox as yet, but will make a report on it, on teardown.  JohnD

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