User Manual

21Hangar 9 P-51D Mustang Sport 40 Assembly Manual
 Step 12
Locate the four 6-32 x 1/2-inch self-tapping socket head
screws. Position the spinner cone onto the spinner
backplate, making sure it keys into the backplate. Use the
screws and a 7/64-inch ball driver or hex wrench to secure
the spinner cone to the backplate.
 Step 13
Attach the muffler to the engine using the hardware
provided with the engine. We also installed an exhaust
diverter (optional) to direct the engine exhaust away from
the fuselage.
 Step 14
Use a #1 Phillips screwdriver to attach the exhaust stacks to
the fuselage using the four #2 x 5/16-inch wood screws.
Note: The exhaust stack for the right side of the
model is shorter than the left. This is necessary to
clear the muffler.
Hint: Starting the screw partially in the exhaust stack
will help in getting the screw started in the pre-drilled
holes in the cowling and fuselage.