Today after a 45 min flight as I throttled back on approach to the airport, my Cyl #2 EGT suddenly started climbing intermittently up well into the yellow, above 2000. Other EGTs, all CHTs and other readings were normal, and I noticed no interruption in power. The Cyl #2 EGT seemed to come back down when I added power, but intermittently climbed up to 2000 and then back down, several times. When I throttled to idle for final and after landing, the EGT readings stayed stable at normal levels.
The flight had been fairly lean, high up on auto fuel (premium, ethanol free).
Any thoughts on what could be the cause? Any suggestions on how to diagnose this and what to look for?
(Probably unrelated, but for quite a few months now I've had an issue with my Dynon LOP/ROP reading - constantly saying LOP even at full rich settings, with all other readings normal including EGTs, and engine leaning properly. This makes me wonder whether I have a defective sensor).
I'm frightened of facing a major engine repair expense.
The flight had been fairly lean, high up on auto fuel (premium, ethanol free).
Any thoughts on what could be the cause? Any suggestions on how to diagnose this and what to look for?
(Probably unrelated, but for quite a few months now I've had an issue with my Dynon LOP/ROP reading - constantly saying LOP even at full rich settings, with all other readings normal including EGTs, and engine leaning properly. This makes me wonder whether I have a defective sensor).
I'm frightened of facing a major engine repair expense.
Last edited: