Mailing List flyrotary@lancaironline.net Message #43574
From: <wrjjrs@aol.com>
Subject: Re: [FlyRotary] Re: Safety Wire
Date: Tue, 29 Jul 2008 12:27:26 -0400
To: <flyrotary@lancaironline.net>
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Al,
You used a lot of metal lock nuts on your plane. Those don't need to be wired, since they were designed for a worst case environment. On the drain plug though, I would wire it reguardless of the material. At the very least I would wire any drain plug. I doubt that it would ever come out, but why take ANY chance. Doing just that plug would take 5-10 minutes at your next oil change.
Bill Jepson


-----Original Message-----
From: Al Gietzen <ALVentures@cox.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, 29 Jul 2008 8:27 am
Subject: [FlyRotary] Re: Safety Wire

 
After that, the plug was always wire. All tapered plugs need to be wired. Worst case is a transmission. The fill and drain plugs get loose when the trans is hot. Tight again when cold.
The plug gets to the same temp as the pan, so thermal expansion shouldn’t change things.  Perhaps it wasn’t tightened properly?  I have a brass plug in aluminum pan, and it is tight when hot or cold.
 
Al
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