Bartamos,
Good question! This shut-off valve is only there because its original to the truck. It had not been leaking until I shut it off to install my new fuel pump with filter and carburetor. I may have loosened the packing nut slightly and therefore that's when the small drip leak started occurring. I'm trying to keep the truck as original as possible.
Anyway, I'll keep my eye on it today to see if it's still leaking. I prefer not to mess around with it too much since monkeying around with gas tanks and gasoline makes me a bit nervous. If I have to replace the valve I'll deal with it in hopefully a very safe manner. There are replacements available for this shut-off.
