1-15-25
Fuel tank vent bung
To permit the venting of the tanks to each other, I needed to add a bung for the vent line. The new bungs were obtained from Aircraft Spruce but the attachment flange is completely round. As I wanted to place the vent as high as possible on the tank, I milled off the top section of the flange.
I then located and drilled up the bung, then installed it wet with PR 890-B2 fuel proof sealant and vapor proof blind fasteners.