macrafic
Well Known Member
The problem first surfaced when I noticed my CHT in cylinder number one would drop significantly when I pull back power. As soon as I advanced power, the CHT would go back up. I had reason to believe, based on input from several qualified experts, that I had a bad CHT sensor.
My A/P was hesitant to swap sensors with another cylinder to see if the problem would follow. Basically, I just wanted to confirm that it was a sensor issue. The reason he was hesitant was because he said the combination of stainless steel and aluminum often causes the threads to gall. He’s even seen the sensors break off in the cylinder as they are attempted to be removed.
Since then, the problem has worsened. In my last flight, CHT in cylinder number oneWas low all the time; anywhere from 100 to 150° cooler than the other cylinders.
I have an AeroSport IO-360 with steel cylinders, and the Garmin G3X CHT sensors. Has anybody had to swap out CHT sensors? Any issues? Has anybody heard of the type of problem that my A/P stated? He now has me hesitant to arrempt it on my own.
My A/P was hesitant to swap sensors with another cylinder to see if the problem would follow. Basically, I just wanted to confirm that it was a sensor issue. The reason he was hesitant was because he said the combination of stainless steel and aluminum often causes the threads to gall. He’s even seen the sensors break off in the cylinder as they are attempted to be removed.
Since then, the problem has worsened. In my last flight, CHT in cylinder number oneWas low all the time; anywhere from 100 to 150° cooler than the other cylinders.
I have an AeroSport IO-360 with steel cylinders, and the Garmin G3X CHT sensors. Has anybody had to swap out CHT sensors? Any issues? Has anybody heard of the type of problem that my A/P stated? He now has me hesitant to arrempt it on my own.