Installation Of The Engine - O.S. engine MaX-37SZ-HRING Manual

TOOLS
Hex Drivers
Necessary for engine installation.
1.5mm, 2mm, 2.5mm, 3mm
Phillips Screwdriver
No.1, No.2, etc.
Screwdriver
Necessary for carburetor adjustments.
No.1, No.2, etc
Socket Drivers
5mm, 5.5mm, 7mm
The under-surfaces of all O.S. engine beam
mounting lugs are precision machined flat and
exactyly parallel to the engine's horizontal axis. It is
essential that the engine mounts in the model are
also accurately made and aligned. If they are not,
they will cause stress and distortion within the engine
itself, probably resulting in loss of performance and
internal damage.
The recommended screws for securing the engine to
the engine mounts in the model are 3mm or 4-40
steel Allen type. It is also advisable to use lock
washers or LOCTITE to prevent nuts from loosening.
Make sure that only the under-surfaces of the engine's
mounting lugs are in contact with the engine mount.
Please note that crankcase volume of the 37SZ-H is a
little larger than the 32SX-H's. If the crankcase body
touches the mount, chamfer the edges of the mount.
Long Socket Wrench With Plug Grip
Recommended for easy removal and replacement of
the angled and recessed glowplug, the O.S.Long
Socket Wrench incorporates a special grip.
8mm
End Wrenches
8mm, 13mm, 14mm, etc.
Needle Nose Pliers
14

INSTALLATION OF THE ENGINE

CORRECT
Front view
Top surfaces are in the same plane.
INCORRECT
Top surfaces are not
in the same plane.
Re-align the surfaces as necessary
Make sure that only the under-
surfaces of the engine's mounting
lugs are in contact with the engine
mount.
15
Side view
Top surfaces are not in the
same plane.
Engine does not rest firmly.