Here's mine: 1960 Beech G18S
All that, and just one fuel gauge! I had the privilege of assisting in the restoration of a beautiful 18, and having some pretty sound sparkies skills, I was the designated fuel level system diagnostician (under AMP supervision, of course). I cleaned and adjusted, or replaced, every fuel level sensor in the airplane, and trouble-shot the system for some problems.
I know it is trite and obvious to say, "the problem was in the last place that I looked," but because trouble-shooting practice usually calls for eliminating the simple and obvious things (notably, connectors) before the more complicated, I was not at all happy that the actual problem resided in the last place available to look, the Rotary switch by which you select which fuel tank to display on the single fuel gauge. And, I understand why they might have chosen not to put an extra connector in the circuit, but could they not have at least left a little bit of extra wire length in so the switch could be brought a little bit out of the panel for testing and inspection?
Do you park it on both? We always park on LEFT. Could be an OWT but it has something to do with cross-feeding?
My first trip in 172, and I parked it with the selector left on "both." Two days later, when it came time to leave, all available fuel was in the right tank, and the field from which we were flying (despite the AFD report that fuel was available) had no fuel, but we had enough to safely make a nearby airport with fuel, but not so much that the imbalance was a problem. Lesson learned.
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