A few flights ago my fuel flow K-factor changed by itself, and read very low. Reset K-factor and all seemed back to normal.
This morning GPH reads zero. I checked K-factor (normal) Then I changed from TEXT to DIAL and back...no difference. Tried changing K-factor...no help.
About 150 flight hours ago this also happened. At that time I removed the fuel flow 'cube' to clean it..no debris or dirt of any sort found, and impeller turned freely. Upon reassembly, GPH worked fine. Its a lot of work to pull that cube, but I may have to. I really suspect an oddity within my D-180 inasmuch as the K-factor had just self-changed recently.
Hints?
This morning GPH reads zero. I checked K-factor (normal) Then I changed from TEXT to DIAL and back...no difference. Tried changing K-factor...no help.
About 150 flight hours ago this also happened. At that time I removed the fuel flow 'cube' to clean it..no debris or dirt of any sort found, and impeller turned freely. Upon reassembly, GPH worked fine. Its a lot of work to pull that cube, but I may have to. I really suspect an oddity within my D-180 inasmuch as the K-factor had just self-changed recently.
Hints?