I often get a smell of Avgas during the take-off run, especially after I have refuelled the tanks to the top (as per the instructions in the manual). I¹m certain that it comes from fuel going up the fuselage tank level indicator wire as I bounce down the runway. This is in a 1966 Alon A2.
I did ask the airfield owner about resurfacing the runway for me but I¹m afraid I can¹t repeat his reply! Mike On 26/10/07 14:45, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > Chuck, > > It sounds to me like your overflow line from the header tank back to the wing > tanks is either plugged or partially plugged. The fuel level in the header > tank should never reach the top of the header tank, because the overflow in > the header tank is set at a level lower than that. This isn't a problem with > the filler cap gasket or the fuel pump, especially if you didn't have the > problem before. A clogged overflow line or some trash blocking the overflow > outlet in the header tank would cause this problem. I would start by looking > in the tank with a mirror and flashlight to see how the overflow fitting > looks. > > Let us know what you find! > > Wayne DelRossi > > > -----Original Message----- > From: chuck <[EMAIL PROTECTED]> > To: [email protected] > Sent: Fri, 26 Oct 2007 12:42 am > Subject: [ercoupe-tech] Overfilling header tank > > I fly an early 415-C (s/n 287) with the early fuel system plumbing. On a > recent flight I smelled fuel in the cockpit (big red flag). After removing > the header tank and checking for leaks, inspecting all screens, and fuel > lines/connectors etc; and measuring the fuel pump restrictor (0.063) - all > clean- my A&P and I are at a loss for causes. A recent test flight revealled > a slight leak around the header tank filler cap, and the float gauge was at > the top of the sight tube- and over fill condition. Any ideas for the next > step? Replace filler cap gasket? Replace restrictor in fuel pump? Carefully > monitor RPM (I have a 7146 extreme climb prop at my field elevation of 4160')? > What rate does the fuel pump transfer fuel to the header tank? This condition > had a rapid onset. > Chuck Rosenfeld > N87114 > > > Email and AIM finally together. You've gotta check out free AOL Mail > <http://o.aolcdn.com/cdn.webmail.aol.com/mailtour/aol/en-us/index.htm?ncid=AOL > AOF00020000000970> ! > ________________ Alon A2 A-188 G-HARY www.ercoupe.co.uk
