The principle is the same. Does all the fuel drain back, or does it just drain back to a specific level? What is that level?
Try shutting the valve off that feeds the fuel pump. If this changes things then the check valves in the pump are leaking, although the fuel should not drop much because the outlet in the header is high up in the tank. Otherwise, cracks in the pipes below the normal fuel level can allow fuel back through either the feed or the overflow line. John Cooper, A&P Skyport Services PO Box 249 4996 Delaware Tnpk Rensselaerville, NY 12147 518 797-3064 Fax 518 797-3865 www.skyportservices.net _____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Richard Sent: Tuesday, November 20, 2007 11:30 PM To: [email protected] Subject: [ercoupe-tech] Fuel system for M-10 A Friend is having a problem with the fuel system on his Mooney M-10. Could someone describe the differences in the fuel systems for the 415 series aircraft and the M-10. He say' the header tank is draining back into the mains after he shuts down. I know how the 415C series fuel systems work but have never been around a M-10 so don't know the differences. Rich Blair Kingsland, Ga.
