Top Flite TOPA0955 - Manual (Page 18)

18
of the engine on the mount . The Great Planes ® “Dead
Center” Hole Locator (GPMR8130) works well for
this . Drill through the marks you have made with a
#29 or 9/64" [3 .6mm] drill bit . Tap each hole with an
8-32 tap .
o 4 . Before installing the engine to the mount, check
the location of the throttle arm . Looking from the back
of the engine, the arm needs to be on the left side .
The O .S . engines allow you to rotate the carburetor .
Remove the two screws holding the carburetor to the
engine . Remove the carburetor, rotate it 180 degrees,
and then re-install the screws . Engines other than O .S .
may or may not allow you to rotate the carburetor . If
you cannot, you will have to position the throttle servo
in a different location than you will be instructed later
in this manual .
o 5 . Install the engine to the mount with four each,
8-32 x 1" [25mm] socket head cap screws, #8 lock
washers and #8 flat washers .
o 6 . Install a brass screw lock connector to the outer
hole of the throttle arm . Lock it to the arm with a nylon
retainer . Slide a pushrod wire through the connector,
touching it to the firewall . Make a mark where the wire
will pass through the firewall .
o 7 . Drill a 3/16" [4 .8mm] hole on the mark . Glue a
12" [305mm] plastic tube into the hole .
o 8 . Remove the servo arm from the rudder . Install
a ball link into the second hole from the center . Lock
it to the servo horn with the 0-80 nut . Re-install the
horn to the servo .
o 9 . Slide the wire from the throttle into the brass
screw lock connector . Lock the wire to the connector
with a 4-40 x 1/8" [3mm] socket head cap screw . For
the rudder and elevator, center the control surfaces .
Make a mark on the pushrod where it crosses the
outer hole in the servo arm . Make a 90 degree bend
at the mark on the pushrod and cut off the excess
pushrod 1/4" [6mm] beyond the bend . Attach the
pushrod to the servo arm using a nylon FasLink .
Make sure all of the servo horn screws are installed
in the servos .
o 10 . Bend the throttle pushrod slightly to get a
smooth movement of the pushrod wire and then
secure the wire with a 4-40 x 1/8" [3mm] socket head
cap screw . Be sure to apply threadlocker to the bolt .
Remove screws to
rotate carburetor
Correct position
for throttle arm