Brief Description: F/Tanks: Fitting Left Drain Plug and Filler Cap
I used the back of a plastic Koki pen as it fitted perfectly into the hole in the skin for the fuel drain and was also easy to thread into the fuel drain mount itself. The resultwas that the Fuel Drain mount was clamped so tight against the skin (by threading it onto the pen) that any other clamping was completely unnecessary. This ensured perfect alignment of the fuel drain mount. I then match drilled the fuel drain to the skin using the holes in the mount as a guide.
I then lined up the Fuel filler cap by eye (leaving the cap on makes it much easier) and clamped it in place when I was happy. I match drilled the filler cap using the skin as a guide
Red koki pen used to line up the fuel drain mount
Fuel drain mount drilled with koki threaded into it clearly visible.