I vote for either the probe or the wire on the way to it.

On Aug 25, 2012, at 8:56 AM, Lancair wrote:

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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