User Manual

31
DeNight Special 50 ARF Assembly Manual
􀀀 Step 14
Slide the plywood standoff forward on the housing to
a position just ahead of the cutout in the side of the
motor box. Let it nd its natural position and glue it in
place with medium CA.
􀀀 Step 15
Place the fuselage left-hand side down in a suitable
stand. Set the engine on the mount and position it so
the face of the drive washer is 4 5/8 inches from the
forward face of the rewall.
􀀀 Step 16
Insert a 9/64-inch drill bit in the engine lug holes and
twist it by hand to mark the engine mount locations.
You may nd it helpful to clamp the engine to the
mounts during this step so that it cannot move.
􀀀 Step 17
Remove the engine. Use a 9/64-inch bit in a drill motor
to drill the holes in the engine mount. Make sure you
keep the drill perpendicular to the mount while drilling
the holes.
􀀀 Step 18
Place a #6 steel washer on each of the 6-32 x 1-inch
Allen head machine screws.
􀀀 Step 19
Place the engine on the mounts and insert the screws
into the engine lugs and mount. Thread an 8-32 nylon
lock nut onto each of the screws and use a 7/64-inch
hex wrench and 5/16-inch wrench to secure the
engine to the mount.