25
EN
P-47D Thunderbolt 20cc
136.
137.
138.
139.
140.
141.
142.
143.
144.
145.
136.
Use a press to carefully reposition the motor shaft so it
is fl ush with the face of the bell housing. Apply a drop
of threadlock on each of the setscrews. Replace the
setscrews and tighten them using a 1.5mm hex wrench.
Make sure not to damage the motor
when repositioning the shaft.
137.
Slide the shim on the motor shaft. Apply a drop of
threadlock on the setscrew. Slide the collar on the shaft
and secure it to the motor shaft using the setscrew and a
1.5mm hex wrench.
138.
Attach the X-mount to the motor. Place a drop of
threadlock on each of the screws provided with the
motor, then use a #2 Phillips screwdriver to tighten the
screws attaching the mount to the motor.
140.
Place the motor on the sliding fi rewall. Adjust the sliding
fi rewall so the measurement from the drive washer to
the rear face of the motor box measures 6
1
/
4
inches
(159mm).
The mount is adjustable for a variety of motors.
141.
Use a felt-tipped pen to mark the location of the sliding
fi rewall on the outside of the motor box.
142.
Remove the motor. Move the sliding fi rewall so a thin
coat of 30-minute epoxy can be applied to the motor
box where the plate contacts the box. Slide the plate
into position. Use a paper towel and isopropyl alcohol to
remove any excess epoxy.
145.
Use a hobby knife to remove the openings in the sub-
fi rewall to allow the leads from the speed control to enter
the fuselage.
143.
Once the epoxy fully cures, install the triangle stock on
the inside of the motor box. Make sure to cut the triangle
stock so it does not cover the blind nuts and fi ts tight into
the corners of the motor box.
139.
Attach the propeller adapter to the motor. Apply a drop
of threadlock on each of the screws. Use a 2.5mm hex
wrench to tighten the screws attaching the adapter to
the motor.
144.
Attach the motor mount to the fi rewall using four M4
blind nuts, M4 x 20 machine screws, four M4 nuts and
eight M4 washers. Make sure to use threadlock on all
hardware to prevent them from vibrating loose.
