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1. 07:27 PM - #3 cylinder miss. (Ron Hoyt)
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| Subject: | #3 cylinder miss. |
I am looking for ideas as to what might cause the following:
On the first flight after about 1/2 hr the #3 cylinder exhaust temp went
to approximately 250 degrees. All other cylinders showed the normal temp
of about 1200 degrees. This occurred when the RPM was reduced to the low
4000 range and continued down into the 3000 range. During the final to
the runway the engine was idled and the cold exhaust returned to normal.
After landing the engine was given a MAG test and both MAGs worked
normally At 3500 rpm.
The plugs were pulled and all looked normal, Grayish white porcelain,
dry and no soot.
I believe the ignition is a wasted spark which means that I should have
more than 1 cylinder show the failure if it was the ignition system.
Could it be a sticky valve?
Any other ideas?
Thanks for any feedback
Ron Hoyt
N232S
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