hi
I am chasing a strange issue with my IO360C1C. Posting it here to see if anyone had a similar problem and what the solutions might be. The EDM data is also attached.
Every couple of flights I have a strange sudden drop in fuel flow at low rpm which causes the engine to stumble. It only happens after cold start (always before the first flight of the day).
My ground operations leaned fuel flow is about 2gph and I taxi at around 1000-1200rpm. Every couple of times, fuel flow suddenly drops to 1.1-1.2gph (FF data shown in the attachment with blue line) causing the engine to stumble. The EGTs are all over the place when this happens. It only recovers with slight increase in throttle and than the problem disappears. Mixture or fuel pump (ON/OFF) has no effect.
I am suspecting the fuel flow divider somehow getting stuck at low fuel flow settings. I never had once an issue in flight. Just cross checking with you all if there are any other opinions.
Baris
I am chasing a strange issue with my IO360C1C. Posting it here to see if anyone had a similar problem and what the solutions might be. The EDM data is also attached.
Every couple of flights I have a strange sudden drop in fuel flow at low rpm which causes the engine to stumble. It only happens after cold start (always before the first flight of the day).
My ground operations leaned fuel flow is about 2gph and I taxi at around 1000-1200rpm. Every couple of times, fuel flow suddenly drops to 1.1-1.2gph (FF data shown in the attachment with blue line) causing the engine to stumble. The EGTs are all over the place when this happens. It only recovers with slight increase in throttle and than the problem disappears. Mixture or fuel pump (ON/OFF) has no effect.
I am suspecting the fuel flow divider somehow getting stuck at low fuel flow settings. I never had once an issue in flight. Just cross checking with you all if there are any other opinions.
Baris
