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The nose tank fuel gage was about one inch above the bottom of the glass.(these are the new gages from Skyport) I filled the nose tank. Dan. The float in my header tank is usually only half way up that glass tube. That is the normal position . When I forget to close the fuel valve to the carburetor and come back a week later, bad luck can have it that all the fuel drained out over the sometimes leaking carburetor. So this needs to be sorted out first. Second if your float sits 1 inch above, lets assume that is the normal position. Disconnect the fuel line to the gascolator and get all the fuel out that is left. If it is more than 5 gallons, you are fine and it's just a problem to adjust mentally to a lower sitting float. If the float indeed starts getting up in-flight, you might have a leak somewhere that you should look after. Hartmut ----- Original Message ----- From: "Ed Burkhead" <[EMAIL PROTECTED]> To: "Dan Mooney" <[EMAIL PROTECTED]>; "Coupe-Tech" <[email protected]> Sent: Tuesday, May 17, 2005 5:20 PM Subject: RE: [COUPERS-TECH] FUEL SYSTEM > ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- > > > Response below, > > Ed > > -----Original Message----- > From: Dan Mooney [mailto:[EMAIL PROTECTED] > Sent: Tuesday, May 17, 2005 9:49 AM > To: [EMAIL PROTECTED] > Subject: RE: [COUPERS-TECH] FUEL SYSTEM > > This is what I observed just last night. After pushing the plane out the two > wing tanks were full. The nose tank fuel gage was about one inch above the > bottom of the glass.(these are the new gages from Skyport) I filled the > nose tank. Within minutes the nose tank fuel gage was going down. It > overflowed the wing tanks. With or without fuel in the wing tanks the nose > tank starts to drain into the wing tank as soon as the fuel level in the > nose tank gets above one inch on the fuel gage. It does not drain the nose > tank any lower than about one inch from the bottom on the nose fuel gage. > > Dan Mooney > > > Dan, > The fuel gauge should normally be about 3-4 inches up from the lid. Since > yours is only an inch above the lid, we can assume you do have a problem. > (Note that you NEVER should normally fill the nose tank unless you've used > fuel out of it in flight after emptying the wing tanks or having a fuel pump > failure. I only added fuel to the nose tank about 10 times in 23 years.) > Now, we need to confirm if it's a bad standpipe or draining through the fuel > pump. This test is easy. Just turn off the right side-wall fuel line > valve - that's the fuel line from the wing tanks to the fuel pump. With > that off, add some fuel to the nose tank. > If you fill the nose tank too much, it WILL overflow through the overflow > tube as it's supposed to. So, just add an inch or inch and a half on the > gauge (a gallon) then wait and see what happens. > If it still drains to the wings and overflows, with the fuel valve closed, > then you have a bad standpipe. If it stays up until you open the fuel > valve, you have a leaking check-valve in the incoming fuel line. > Ed Burkhead > http://edburkhead.com > ed -at- edburkhead???.com (replace -at- with @ and remove ???) > > > > > ========================================================================== == == > 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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