All-
Interested in opinions / thoughts on plugs.
I have the stock Lycoming from Van's in the -10. Slick mags, with slickstart module. Total time since new is now 220h or so.
Earlier this year I had 2 of the original Champion plugs fail. They had about 160 tach hours, but calendar age was around 10 years. I elected to swap to Tempest fine wires, and changed all the plugs.
Since then all has been fine; the engine starts and runs fine.
Last Wed enroute to CO I stopped for fuel in Colby KS. Pre takeoff mag check showed no ignition on Cyl#3 with the left mag. Pulled cowl, pulled plug and checked it with the ohmmeter; "1". Fortunately I had a new / leftover massive electrode plug with me, so I swapped it out and continued the trip.
I know the failed plug was never dropped. I checked resistance on all of the new fine wires before installing, and all were well within spec. I rechecked this one today with a better meter, and it is reading 8800+ ohms.
Is plug failure like this common? Do I need to investigate anything else with the ignition system?
I'm a little frustrated that the nearly new fine wire plug is already bad (probably 30-40h since install).
Thanks in advance.
Interested in opinions / thoughts on plugs.
I have the stock Lycoming from Van's in the -10. Slick mags, with slickstart module. Total time since new is now 220h or so.
Earlier this year I had 2 of the original Champion plugs fail. They had about 160 tach hours, but calendar age was around 10 years. I elected to swap to Tempest fine wires, and changed all the plugs.
Since then all has been fine; the engine starts and runs fine.
Last Wed enroute to CO I stopped for fuel in Colby KS. Pre takeoff mag check showed no ignition on Cyl#3 with the left mag. Pulled cowl, pulled plug and checked it with the ohmmeter; "1". Fortunately I had a new / leftover massive electrode plug with me, so I swapped it out and continued the trip.
I know the failed plug was never dropped. I checked resistance on all of the new fine wires before installing, and all were well within spec. I rechecked this one today with a better meter, and it is reading 8800+ ohms.
Is plug failure like this common? Do I need to investigate anything else with the ignition system?
I'm a little frustrated that the nearly new fine wire plug is already bad (probably 30-40h since install).
Thanks in advance.