<<1. How do you keep from ruining the surface on the fuel caps while sanding the wing.       OK, I know, take the caps off, but that raises another question.

     2. How do you keep the sanding dust out of the fuel tank, the last place I want to see it going.       OK, I know, put the caps on. Now we're back to question #1.>>

Charles,

Both during sanding/body work, as well as, during painting, I covered the fuel caps with electrical tape.  After applying a few strips of tape, I trimmed it with a knife right to the edge of the cap.   Replace the tape as needed.  The tanks will remain completely dust free - assuming all the other openings are closed off as well.

Chris 

Chris Zavatson

N91CZ

360std