Does this sound like a problem with the injector, with the thermocouple,
Or ? ? ?
Or it could be a loose spark plug that has lost thermal contact with the head and overheats and caused preignition, or a broken spark plug insulator that reveals a sharp edge that does the same thing.
Let us know what you find.
Fred Moreno
-------Original Message-------
Date: 25/08/2012 8:57:24 PM
Subject: [LML] Spiked CHT
Last week I had been cruising LoP and during the power back for landing
Cyl #3 suddenly jumped 125F and sent the Chelton lady shouting into my
ear. That would not be unusual if I had failed to either further lean
or go full rich but in this case I had leaned and the other 5 cylinders
were OK. I leaned way back and really lost power and then went full
rich, and it finally settled down. On the return flight I reduced power
and carefully kept leaning and had no problem. Yesterday it was deja'
vu all over again. Powered back on approach and only #3 went nutso
until I leaned even more. On the return flight there was no recurrence.
Does this sound like a problem with the injector, with the thermocouple,
or ? ? ?
Robert Simon
ES-P N301ES
(TSIO550)
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