Mailing List flyrotary@lancaironline.net Message #37302
From: Bob White <rlwhite@comcast.net>
Subject: Re: [FlyRotary] Re: Gear box oil temps
Date: Wed, 23 May 2007 12:20:53 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
On Wed, 23 May 2007 08:13:39 -0800
"Al Gietzen" <ALVentures@cox.net> wrote:

 

I wonder if Tracy's reduction uses any components that rely on a heated
press fit for retention. I know if my trans cooler fails, my rear seal used
to pop out of the tail shaft housing, making a big mess. I now mechanically
retain those seals.  

Lynn E. Hanover

Lynn;

Rear seal is retained with a bolted flange. I don't think there is anything
relying on heated press fit.

I disassembled the drive after about 23 hours when I had things apart to fix
the loose through bolt that was dripping coolant into the oil, and all gears
and bearings appeared as new; so the oil temps there are apparently having
no bad effects.  I'll probably check it again at around 50 hours.

Al


The rear seal in my plate is a press fit (RD1C).  It's tight, so I don't
think there is any need for heat to keep it in.

Bob W.

--
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
3.8 Hours Total Time and holding
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