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Sure, If you have the equipment to record the signals, I might take you up on it. I have one last thing to try before I am out of options. I am going to try reversing the way the wires are connected to the crank angle sensors. They may be wired incorrectly.
Brian Trubee
-----Original Message-----
From: Steven W. Boese <SBoese@uwyo.edu>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Fri, Jul 15, 2011 11:07 pm
Subject: [FlyRotary] Re: High speed stumble continues
Brian,
My EC2's fire the leading and trailing plugs simultaneously. Have you tried disabling the leading or trailing coils when the problem is occurring?
Since you are able to induce the problem on the ground, have you given any thought to the offer of sending you the equipment to record the EC2's input and output signals? This might indicate the nature of the problem and thus facilitate the development of a solution.
Steve Boese
RV6A, 1986 13B NA, RD1A, EC2
I just installed the Magnecor wires, put on a smaller prop, re-routed the CAS sensor wires to a location further away from the secondary igntion leads, and ran up the engine. No joy- I still get lots of misfiring above 5200 RPM. Wondering if the issue might be with my EC2.
I still have questions about how my CAS is wired, on the 13BREW the CAS is next to the trigger wheel, it consists of two hall effect sensors, one to count every 30 degress,and one that counts every 360 degrees. The EC2 has three wires going out to the CAS- one to provide voltage to both sensors, and one wire each (#22 & #23 ) to read each sensor. My question is- is polarity a possible issue with hall effect sensors?
Also, does the EC@ fire both leading and trailing plugs simultaneously?
Brian Trubee
Grounded until further notice
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