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Norm:: What you have described are characteristics of coupes. If the wing fuel caps are not completely sealed they will vent at high angles of attack when full. It is difficult to get fuel cap gaskets that are not completely brittle, and will do some sealing, Skyport has them. Secondly, most pilots are not in favor of a fuel cap removal that requires a show of great strength, but if you want to fill the tanks with 24 gallons of fuel the caps must fit tightly. Tap the locking ears down slightly till the cap fits tightly. Negative pressure on the top of the wing will suck a gallon of fuel through that tiny vent hole and around the gaskets pretty quickly. Spend some maintenance time on this. In the future, Norm, you have an aircraft that is quite sensitive to wrong refueling methods. the only way to guarantee proper fuel procedures are followed (fuselage tank first followed immediately by the wings to 1 inch below the tops and put the caps on with the vent hole forward) is to do it yourself! Which I highly recommend. Wayne Woollard ----- Original Message ----- From: "Norman Carrigg" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, April 11, 2004 9:35 AM Subject: [COUPERS-TECH] Fuel Issue N2601H > ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- > > > Hi all: > > I got in 2.4 more hours of shakedown flying after the big rebuild, and > experienced one unsettling anomaly: > > I had the wing tanks filled at the local FBO, and he filled them right to > the top. (As a matter of fact, the yokel that was pumping that day over > filled, and poured a pint or so over the top on the right wing.) > > Well, after taxiing to the runup area, and then proceeding through the > runup, I noticed that the header tank bobber was maxed all the way to the > top of the tube, considerable fuel was exiting from the cap/vent area. > > Needless to say, I wasn't going to fly like that. I shut her down and > scratched my head a bit. What I surmised was that since the taks were really > over full, fuel couldn't drain back to the wing tanks adequately. So, I > removed 1 gallon from the left tank, then ran it for a while at idle, then a > while longer at 1700. All seemed to be back in order, and we took off for a > local flight. > > Next, during am 80mph climbout to 4500', the left tank vented quite a bit of > fuel, although the header tank bobber was good. As soon as I went level, or > descended, the left tank would stop venting. We returned to our home field > and did a couple rounds in the pattern to burn off some more fuel close to > home. > > Lastly, I flew another 1.4 hours in the afternoon without tanking again, and > didn't vent any fuel at all anywhere. > > Finally, my question: Does this typicaly happen with ercoupes? Should I > always be carefull to stop a bit short of full when tanking? Or, is it > possible that the return line is not flowing adequately? > > Any advice will be greatly appreciated! > > Thanks, > > Norm Carrigg > N2601H > > _________________________________________________________________ > MSN Toolbar provides one-click access to Hotmail from any Web page - FREE > download! http://toolbar.msn.com/go/onm00200413ave/direct/01/ > > > ========================================================================== == == > To leave this forum go to: http://ercoupers.com/lists.htm > Search the archives on http://escribe.com/aviation/coupers-tech/ > > > > ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers-tech/
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