Certainly, but sometime valves will seal at one pressure and
leak at very little more. The point is, no fuel leaks are
allowed. I've seen Piper PA 28 with fuel stains on the
selector valve inside the cockpit, being flown. The owner
was telling students it was OK.

I've seen airplanes with fuel stains at the wing root, on
the belly and just about everywhere, except maybe the top of
the tail. Fuel isn't supposed to leak. Even if the plane
is just over-filled, the free space in the tank should allow
for expansion if the plane is parked on level ground. Some
airplanes will transfer fuel from one wing to the other if
not parked on "level" ground.

But if the tank was empty and the valve had a full pound
less pressure and did not leak and did leak when just fueled
to full, it isn't an over-filled condition just the weight
of the normal fuel and a bad valve seat.


--
James H. Macklin
ATP,CFI,A&P

"Morgans" wrote in message
...
|
| "Jim Macklin" wrote
|
| Fuel has weight, a little less than .5 pounds per foot
of
| distance. A high wing Cessna has about 3-4 feet between
the
| fuel tank and the carb float. The float in the bowl is
| raised by the liquid fuel in the bowl and by a lever,
| presses the needle valve closed, stopping the flow of
fuel
| by gravity.
|
| I know how all of that stuff works, but using you figure,
it the tank is 6"
| overfilled, it is going to have an increase of pressure of
1/4 psi?
|
| If that puppy is leaking because of that, I would still
park it, wouldn't
| you?
|
| Stuff like that can get worse, and cause all kinds of
problems that I would
| rather deal with on the ground.
| --
| Jim in NC
|