Mailing List flyrotary@lancaironline.net Message #55796
From: Tracy <rwstracy@gmail.com>
Subject: Re: [FlyRotary] Re: Flex Plate Failure - Improvements
Date: Sun, 17 Jul 2011 15:55:09 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I could be wrong but I really think the input shaft end play angle is a red herring, at least on the RD-1x drive.  Even if there were some evidence of fore/aft movement evidence on the spline it could have been caused by the awful chaos that was going on with that completely destroyed flex plate causing the damper to move axially on the input shaft.

If there is any fore/aft movement of the input shaft, there is a SERIOUS problem with the drive that would be far more critical than the flex plate issue.

Tracy

  

Sent from my iPad

On Jul 16, 2011, at 4:01 PM, "Bill Bradburry" <bbradburry@bellsouth.net> wrote:

David,

 

Is it possible for you to measure the wear mark on the RD1-X drive input shaft splines to see if there is any indication that the RD1-X adapter plate has moved in a forward/back linear fashion?  If there is, then wherever that is coming from is the problem.  It is either flex in the flex plate, or end play in the input shaft.

 

Everybody is trying to fix flex in the flexplate, but I don’t think we have definitely ruled out end play in the input shaft yet.

 

Bill B

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