Bunker Bu 133
Instruction Manual.
12
INSTALLING THE PROPELLER.
The propeller should not touch any
part of the spinner cone. If it does, use a
sharp modeling knife and carefully trim
away the spinner cone where the propel-
ler comes in contact with it.
MOUNTING THE ENGINE .
1) Position the engine with the drive
washer (145mm) forward of the firewall
as shown.
145 mm
Machine screw M4x30mm
2) Use a pin drill and 4mm drill bit to
drill a small indentation in the mount for
the engine mounting screw.
3) Use a drill to drill the four holes in the
engine mount rails.
4) On the fire wall has the location for the
throttle pusshrod tube (pre-drill).
5) Slide the pushrod tube in the firewall
and guide it through the fuel tank mount.
Use medium C/A to glue the tube to the
firewall and the fuel tank mount.
6) Connect the Z-bend in the 450mm
throttle pushrod to the outer hole of the
carburetor arm.
7) Slide the throttle pushrod wire into
the tube. Position the engine between the
mounts. Use four M4x30mm machine
screws to secure the engine to the mount
as shown.
