Note:
The Hangar 9 J-3 Piper Cub is designed for .40-.46 size
2-cycle or .45-.60 size 4-cycle engines. For the ultimate in scale
sound and realism, we recommend and fly the 4-cycle Saito
.50GK. With its black finish, gold heads, realistic scale sound,
reliability and long life, the Saito .50GK is, in our opinion, the
best choice available for the Cub. Consequently, the following
instructions illustrate the installation of the Saito .50GK. Other
4-cycle and 2-cycle engines are installed in a similar manner.
❑
1. Trial fit the motor mount to the firewall on the fuselage.
Note that the proper orientation mounts the engine with
the engine’s cylinder head to the right of the airplane (as
viewed from the pilot’s perspective when sitting in the
cockpit). When you are satisfied with the fit, use a
generous amount of 30 minute epoxy to glue the motor
mount into position on the firewall. Be sure the motor
mount is firmly pressed against the firewall. Set this
assembly aside to dry.
❑
2. Locate the six balsa triangle stock pieces.These are used
to reinforce the motor mount and firewall. Using 30
minute epoxy, glue these triangular pieces in place as
shown in the photo.
❑
3. Mix approximately 1/2 ounce of 30 minute epoxy. Using
an epoxy brush, coat the firewall and the entire motor
mount with epoxy. This will fuel-proof the engine area.
Allow the epoxy to fully cure.
❑
4. Locate the engine mounting hardware included in the bag
with the motor mount. You should find eight 3mm
screws, eight 3mm locknuts, sixteen washers and two
motor plates. This system gives you the greatest
versatility, allowing you to mount many brands and sizes
of engines.
22
Section 8: Installing The Engine
.40-.46 2-cycle or .45-.60 4-cycle engine (not included)
Fuselage motor mount with hardware
30 minute epoxy
Drill
1/8" drill bit
Pencil
Measuring device
Epoxy brush
Items Needed
Tools And Adhesives Needed
Summary of Contents for J-3 Piper Cub
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