jdeas
Well Known Member
Over the last 50hrs I have graphed a rise in CHT's on one of my cylinders causing me to look for problems in my plenum and instrumentation. The change was not outrageous but could be be described as a 30 deg higher temp during climb (high power) while nearly equal to all other cylinders in cruise. I was thinking along the lines of airflow and AOA for a few months but it now appears to be blow by. I could not get one cylinder above 60/80 (retested after a flight). Last year that same cylinder was 74/80
Should this be another indicator we can key on when assessing our engines? Even with this one cylinder leaking, the WOT speeds on the AC were close enough to not notice where the CHT stuck out.
Scoping the cylinder the valves look great but lots of air flow from the crankcase vent so that leads me to ask, what are most shops recommending for 500hr chrome cylinders with ring problems?
Should this be another indicator we can key on when assessing our engines? Even with this one cylinder leaking, the WOT speeds on the AC were close enough to not notice where the CHT stuck out.
Scoping the cylinder the valves look great but lots of air flow from the crankcase vent so that leads me to ask, what are most shops recommending for 500hr chrome cylinders with ring problems?