Great news John,  Chapter 29 "Flight Testing part 6" is a morning staple at
my office ;-)  I probably can't live without it. I trust that Chapter 30
will follow?  -- Ian



-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
Behalf Of John Slade
Sent: Saturday, June 04, 2005 3:41 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] EC2 problems - solved


Tracy and others.
Following more than 12 months of battling with EC2 issues I'm pretty sure
it's Eureka day!
After rewiring and testing for almost 4 weeks I plugged the EC2 in last
night, and got exactly the same symptoms as before. NOP flashing indicating
no communication. I took the EC2 to Buly's plane and tried it in his
installation. Same NOP, so I was thinking I'd fried it again. Before sending
it back yet again I decided to install it my plane one more time and see if
there was a spark.

To my amazement it worked. No NOP, and I could bring up the EC2 data. The
only thing that changed overnight was that I moved the cable to unplug it. I
climbed in the back and found that I could make the NOP flash, or stop
flashing, by moving the cable. I haven't taken the connector apart yet, but
I'm expecting to find a broken wire inside the insulation, probably near a
solder joint at the pin. Whenever I bent the connector outward for testing
it made contact. When I bent it back to plug it in, contact was lost.

Bingo!
John

Just guessing, but maybe the new EC2 can't communicate with a pre-autotune
EM2 like Buly's. ?? 3