Today, I completed the leak check. I had difficulty getting the fuel cap (recessed) to seal. It took some grease on the o-ring and lots of tape over the cap. In addition, I filled the tank with water and rotated the wing -- no leaks. Then, I put the top skin back on, cleco'd it, then leveled the wing and cleco'd the skins to the main spar. Tomorrow, final riveting.
