Tank attach bolts

[tshort]

I attached the fuel tanks last night. Several (1-2) of the bolts were very difficult to thread into the nutplates on the z-brackets - the hole was offset just enough to make threading the bolt tough and to really increase the drag on the bolt. I don't know why / how this happened - it was one bolt out of three on the z-brackets it happened on - the other two fit fine.
After much head scratching, I decided to take a small round file and open the edge of the hole in the spar to align the holes and make the bolt go in without drag. We're talking a few thousandths at one edge of the hole. I called Van's tech support and this is OK.

Anyone else have a similar problem? I can't remember what I drilled the holes to (i.e. if I used a numbered drill bit or a fractional ... perhaps the bigger would have been best). I can't figure out why a couple holes were out of alignment when everything else fit so well...

T.

[cjensen]

Yep, I had the same problem on a couple of them. Did the same thing. I took every precaution to make sure they lined up, and still ended up with an ever so slightly off fit on a couple.

[Wicked Stick]

Mine were fine.