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"Upon refueling, even if the FBO insists THEY must do the actual fueling, you do NOT have to allow them to remove or replace your fuel caps, " I had that. Even I told and showed the guy how to put on the caps , they went on in reverse. Annoying, since it is hard to put them on like that and even harder to get them off. The serial Number of the Coupe gives you only a hint on how the fuel system had been on factory delivery. N3330H had it's fuel system updated to like the later models (415-E) and could run with unvented fuel caps. But when I tried that , only one tank emptied, the other stayed full. It seems to be all about the venting of the tanks and the pressure buildup in those due to ram air in flight. Hartmut kathyw wrote: > ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- > > Hi Bill! 12/17 > > I have what looks like an original Ercoupe Service Manual with diagrams for the various Coupe fuel plummings according to their serial number. Give me your serial number & address if you'd like me to send you a copy of yours. > > Kathy Wilson, Page, AZ N3281H 1946 415D #3906 > > Ps. > The only time I had such an event was because a "pop rivet" had mistakenly been used to repair my right fuel cap and failed. I had just refueled and was 1/2 hr out when I noticed my header tank dropping. People accuse me of even carrying the kitchen sink on across our country flights, but this time a small mirror alerted me to the right tank's fuel syphoning overboard. I diverted quickly to an alternate 20 miles away and landed without incident. Fortuneately for me an ex-Ercoupe owner was the mechanic, eagerly repairing the cap correctly for "no cost", just glad to help a 'Couper! > There actually are lessons here for all of us. Upon refueling, even if the FBO insists THEY must do the actual fueling, you do NOT have to allow them to remove or replace your fuel caps, which is why that "pop rivet" was probably used for repair in the first place, unbeknownst to me! Plus I then can monitor the fuel tanks volume during filling to 1" below the rim. > -------------------------------------------------------------- > I'm sure this has been addressed many times in the past, but I am relatively new to the 'Coupe fraternity, being a former Comanche driver who came in from the cold. > > At the start of a cross-country flight last weekend, all three tanks were topped off. The left wing depleted quickly, then the float indicator in the header tank began to drop. At the end of the flight, the left tank was empty and the header tank was almost empty, but the right tank was full. > > I understand that the little fuel pump transports fuel to the header tank as needed, then gravity takes it from there to the gascolator. Any excess is pumped as overflow from the header to the right wing tank, from which fuel is pumped as needed when the left tank is empty and the header fuel level begins to drop. That didn't appear to be happening. > > Any ideas here? Can someone provide a definitive description of how the fuel system should work, and what the float indications should be as fuel burn progresses? > > Thanks, > > Bill Herridge > N99790 > Gatesville, Texas > ========================================================================== ==== > To leave this forum go to: http://ercoupers.com/lists.htm ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm
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