O.S. Engines 12TG-PX - Manual (Page 10)

18
ENGINE INSTALLATION
Make sure that the vehicle's engine mounting surfaces
are level and in the same plane. Poor installation may
cause distortion of the crankcase, bearings, etc.,
resulting in erratic running and loss of performance.
Chassis
Chamfer inside edges of bearers.
Do not allow
bottom of
crankcase to
touch chassis.
The recommended screws for securing the engine are
3mm or 4-40 steel Allen hexagon socket type.
If existing holes in the engine mount do not align
perfectly with engine mounting lugs, enlarge them
slightly with a needle-file so that screws are in
alignment with the mounting holes.
Engine Mount
When installing the engine on the chassis, note the
following points.
(Chamfer inside edges of bearers when the engine
mount edges interfere with the engine. Do not
chamfer the engine.)
File
19
JAPAN
NOTE:
When spacers are supplied joined in pairs (see
sketch) separate them as shown.
Either face may be placed downwards.
Avoid forcing the screws. Secure with locknuts. If
the bottom of the recoil starter housing would
otherwise touch the car chassis, install the engine
mount spacers (supplied) between the engine's
mounting lugs and the engine mount. Use the
M3x15 screws provided. With some vehicles, it
may be necessary to make minor trimming
modifications to chassis or body when installing
the engine.
Mount Spacer
Engine Mount Spacer
Separate
Engine Mount
12TG-X AND 12TG-PX INSTALLATION
If existing holes in the engine mount do not align
perfectly with engine mounting lugs, enlarge them
slightly with a needle-file so that screws are in
alignment with the mounting holes.
(Use the mount supplied with the car kit.)