After flying for close to 1000 hours bethind his P-mag ignition, this customer’s’ EICommander started to indicate a Timing Divergance greater than 2.0 degrees.  The divergence started to increase over multiple flights which lead the pilot to remove and inspect the P-mags.  Upon inspection, he found a bad bearing.

 

When a pilot started experiencing an intermittent engine “stumble” and struggled to find the cause, he purchased and installed an EICommander. Shortly after installing his EICommander he noticed an issue with one of the Coilpack bar graphs. He then inspected the spark plugs and plug wires pointed out by the EICommander and found a broken spark plug clip.

A customer was flying his EICommander equipped GlasAir when the EICommander displayed a Timing Divergence Alarm. Upon landing the pilot/builder removed and inspected both of his P-mags. While nothing was amiss with the ignitions he did notice one magneto gear was sufficiently worn to cause the EICommander to issue a yellow caution alarm. Upon replacement of the offending gear and reinstallation of his ignition, the Timing Divergence Alarm returned to the bottom of the “green”.