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Date: Wed, 23 May 2007 12:20:53 -0600
From: Bob White <rlwhite@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Gear box oil temps
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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.

-- 
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