O.S. Engines FL-70 - Manual (Page 8)

14
Engine Parts Name
Rocker Cover
Glow Plug
Lock Nut Set
Drive Hub
Propeller Washer
Crankcase
Beam Mount
Cover Plate
Carburetor
Type 60W
F-4030 Silencer Assembly
Exhaust Header Pipe
Lock Nut
Nipple No.1
(Larger hole)
Nipple No.5
(Smaller hole)
Silencer Body
Rotor Guide Screw
Throttle Lever
Needle
Airbleed Screw
15
Because the FL-70 is a powerful, large-displacement, single-cylinder four-stroke-cycle engine, it is
essential to use very substantial engine mounting. Conventional wooden mounting beams should be
of rigid hardwood and of at least 15mm or 5/8-in square section.
INSTALLATION
CORRECT
Top surfaces are in the same plane.
INCORRECT
Front view Side view
Re-align the surfaces
as necessary
Opposite beam
Top surfaces are not in the
same plane.
Engine does not rest firmly.
Top surfaces are not
in the same plane.
Make sure that the mounting beams are parallel and that their
top surfaces are in the same plane.