Mountain Time
Active Member
Over the last few flights I've noticed the fuel flow on my G3X Touch having frequent periods where it wanders all over the place during cruise - for example, where I should be at a steady 8.8 GPH or so, it will trend down to the low 7 or high 6 range, then trend back up into the 9s, etc. This happens quickly - you can see it quickly flicker through the range, up and down, in just 10-15 seconds (ballpark) or less. There's no apparent rhyme or reason. And the other engine data are normal and the engine runs as though there is nothing abnormal happening.
Other times it will settle in and stay in the expected spot, maybe varying .1 or .2 GPH depending on whether the engine loads up a bit as the autopilot works to maintain altitude in a slight downdraft , as an example. That's the normal behavior I'm used to seeing.
The sender is a FloScan 210 from when I built the plane with the RMI uMonitor and has 700 hours on it, about 150 of that with the G3XT. And, the interesting thing is that the total fuel used still comes out on the money (or dang close) when its time to fill up, as it always has. So that doesn't seem to be affected.
Any ideas from the collective mind? I haven't dug into anything yet but wanted to see if there's something specific I should be looking for.
Thanks in advance -
John
Other times it will settle in and stay in the expected spot, maybe varying .1 or .2 GPH depending on whether the engine loads up a bit as the autopilot works to maintain altitude in a slight downdraft , as an example. That's the normal behavior I'm used to seeing.
The sender is a FloScan 210 from when I built the plane with the RMI uMonitor and has 700 hours on it, about 150 of that with the G3XT. And, the interesting thing is that the total fuel used still comes out on the money (or dang close) when its time to fill up, as it always has. So that doesn't seem to be affected.
Any ideas from the collective mind? I haven't dug into anything yet but wanted to see if there's something specific I should be looking for.
Thanks in advance -
John