Top Flite TOPA0215 - Manual (Page 27)

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FINAL CONSTRUCTION
Mount the Engine
❏
1. Set your engine onto the engine mount. Position
it so that there is approximately 1/4" [6mm] clearance
between the front of the cowl and the front of the
thrust washer on the motor. If you have a small
C-clamp use it to hold the engine to the mount.
❏
2. Mark the location of the engine bolt holes on the
engine mount. This can easily be done with a Great
Planes
® Dead Center ™ tool. If you do not have this
you can also heat the end of a pointed wire with a
torch and dimple the engine mount in the center of
each hole.
❏
3. Remove the engine from the mount and drill four
#36 (or 7/64) [2.8mm] holes in the engine mount on the
marks. Tap 6-32 threads into the holes and mount your
engine with four 6-32 x 3/4" [19mm] socket head cap
screws, #6 flat washers and #6 lock washers.
❏
4. Make a mark on the firewall to locate the
position that the throttle pushrod comes through.
Remove the engine and drill a 3/16" [4.8mm] hole
through the firewall.
❏
5. Cut the 11-3/4" [298mm] gray outer plastic
pushrod guide to a length of 9". Use sandpaper to
roughen one end of the 9" plastic tube. Insert the
smooth end of the tube through the firewall back into
the radio compartment. Apply a couple of drops of
CA to the roughened end of the tube. Then finish
inserting the rest of the tube flush with the firewall.
❏
6. Before permanently installing the engine,
assemble the fuel tank following the manufacturer's
instructions. Then mount the fuel tank inside the
fuselage. Run the carburetor and vent lines through
the holes in the firewall.
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7. Permanently mount the engine to the mount
and connect the fuel and vent lines.
❏
8. Install the brass screw lock connector onto the
carburetor. You will complete the throttle installation
when you install the radio system.
Install the Radio
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1. Locate the 1/8" [3mm] die-cut plywood servo
tray and the six 1/8" [3mm] die-cut plywood servo
tray reinforcements.
❏
2. Glue the plywood reinforcements to the bottom
of the servo tray.
❏
3. From left over 1/4" x 1/4" [6 x 6mm] basswood
stringer material, cut two servo mounting rails 3-7/8"
[98mm] long. Glue them in position inside of the
fuselage at the location shown on the plan.
❏
4. Glue the servo tray on top of the rails.