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Date: Tue, 04 Aug 2009 13:51:29 -0500
From: Christopher Barber <CBarber@TexasAttorney.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Smoking gun, ground wire crimp...
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Sorry to side track the T-shirt discussion.  I think we need something 
more distinctive though to call more attention.  Something "cute" but 
potent to deliver more of a total message.  Just a thought.

Anyway, Tracy should have my EC2 by now.  Hopefully he is not 
overwhelmed with work and I will be back with a running engine soon.

Concerned with my broken ground wire, I examined where the wire broke, 
right at the connection.  I crimped some test wire with the same wire, 
terminators and crimps and what I have determined is that I MUST have 
crimped the 16 gage wire with the wrong size crimp (20gage crimp) and 
the smaller size crimp cut the the thicker wire to a point of failure.  
The test crimps I did with the smaller crimps on the larger wire 
produced the same visual result as what failed.  I have done so many 
crimps of 20 gage wire, I am guessen' that my motor memory just went to 
the red crimp.  <embarrassed sigh>.

Just a small data point.

All the best,

Chris
Houston