Hangar 9 J-3 Piper Cub Assembly Manual page 24

Section 8: Installing The Engine
11. Using a pencil, mark the engine mounting plate where
the four holes are to be drilled. (Mark through the engine
mount flanges.)
12. Remove the engine and drill the engine mount where
the marked holes are with a 1/8" drill bit.
Section 9: Landing Gear Assembly and Installation
Items Needed
Aluminum landing gear
Wheels
Landing gear hardware
1. Cover the aluminum landing gear using the provided
covering material. When it is in position, apply heat with
a heat gun or iron to set the adhesive.
2. Attach the wheels to the aluminum landing gear using the
long 4mm screws. Note that each screw passes through
24
Yellow covering for landing
gear
13. Now install the engine using the four screws, eight
washers and 4 locknuts. Note: On some engines it may
be necessary to remove a small section of engine mount
side rail to allow clearance for the needle valve.
Tools And Adhesives Needed
Medium Phillips screwdriver
Small adjustable wrench
Heat gun or Iron
the wheel and then through a 4mm nut, a 4mm washer,
the landing gear and finally into a second 4mm nut.
Apply Blue Locktite 242 to the 4mm nuts and tighten
securely. Note: The wheel must rotate freely with only a
small amount of side play.
CONTINUED
Hobby knife
Blue Locktite 242