The configuration:
IO-360-M1B
Red Cube circa 2012 (older style connections, I think)
Skyview w/ EMS, etc.
No issues with fuel flow, ever, until today...saw fuel flow rates that dropped several gph, then a lot, then a few, then to 0 gph, then back up to normal, etc. Started about 10 minutes into the flight, did it intermittently while I checked various things en route back to the field, then quit doing it and behaved perfectly fine in the descent and landing (about 10 minutes). On the ground, static run-up to 2500 RPM and all looked normal.
Decowled, looked over entire fuel system...no evidence of any leaks, no blue staining anywhere, etc.
Downloaded data...no change to any other engine data during "dropouts", so as I suspected, it's instrumentation.
My thinking is that the impeller may have had an issue; alternatively, a buddy suggests the connectors might need cleaning.
Anyone have a similar experience? I plan to demate/mate the connectors a few times (and check for any contamination/corrosion) and test fly it before diving into pulling out the red cube...
Thanks!
IO-360-M1B
Red Cube circa 2012 (older style connections, I think)
Skyview w/ EMS, etc.
No issues with fuel flow, ever, until today...saw fuel flow rates that dropped several gph, then a lot, then a few, then to 0 gph, then back up to normal, etc. Started about 10 minutes into the flight, did it intermittently while I checked various things en route back to the field, then quit doing it and behaved perfectly fine in the descent and landing (about 10 minutes). On the ground, static run-up to 2500 RPM and all looked normal.
Decowled, looked over entire fuel system...no evidence of any leaks, no blue staining anywhere, etc.
Downloaded data...no change to any other engine data during "dropouts", so as I suspected, it's instrumentation.
My thinking is that the impeller may have had an issue; alternatively, a buddy suggests the connectors might need cleaning.
Anyone have a similar experience? I plan to demate/mate the connectors a few times (and check for any contamination/corrosion) and test fly it before diving into pulling out the red cube...
Thanks!