I finished sealing the interior of the port fuel tank.
I had to re-adjust the contours of the 405 tank mounting brackets, on the face that rivets to the tank end rib. Because I had contoured it to fit the nose of the tank before dimpling and riveting the rivets now 'got in the way'. So the 405 no longer sat in the correct place on the end rib. I ended up gently filing away the contour of the 405 where the rivets touched it, so that it would sit flush with the fuel tank end rib, and would rivet correctly.
