Hangar 9 J-3 Piper Cub Assembly Manual page 15

Section 5: Mounting the Wing
3. Using a 1/4" drill bit, drill through the front face of the
wing using the holes in the front fuselage former as a
guide. Be sure the wing is securely held in the correct
position when drilling (see below photo) — a second set
of hands to hold the wing in place makes this task easier.
4. Remove the wing and glue both wing dowels in place
using 12 minute epoxy. The dowel rods should extend
3/8" out of the wing.
5. Press the blind nuts into position below the rear wing
hold down plate in the fuselage. Use pliers to squeeze the
blind nuts so the "teeth" penetrate the wood and stay in
place. Note: It may be helpful to place a piece of wood
on the top side of the hold down plate before squeezing
the pliers. This will keep the pliers from "crushing" the
rear wing hold down plate. Additionally, a small amount of
epoxy or thick CA will permanently attach the blind nut to
the rear wing hold down plate.
6. Thread the wing hold down screws into the bottom side of
the blind nuts so that the ends of the screws extend 1/8"
of an inch above the wing seat.
CONTINUED
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