O.S. Engines 21VZ-M - Manual (Page 7)

12
Water Cooled Head
Crankcase
Mounting Lugs
Cover Plate
Carburetor
Type 21D
Crankshaft
BASIC ENGINE PARTS
Glow Plug P7
Front Bearing
Water cooled plug cap
Exhaust
Install the carburetor, marine head and
water cooled plug cap with suitable
direction according to the model.
NOTE
INSTALLATION OF THE
ACCESSORIES SUPPLIED
Glow plug and water cooled plug cap
Install the glow plug on the
marine head.
Press the water cooled plug
cap on the head securely.
13
Install the exhaust seal
ring supplied.
Exhaust
Seal Ring
INSTALLATION OF THE
EXHAUST SEAL RING
Insert the taper collet on the crankshaft,
taking care not to push the crankshaft to the
cover plate end.
INSTALLATION OF THE FLYWEEL
Crankshaft
Flywheel
Taper Collet
INSTALLATION OF THE DUST CAP SET
If the engine is to be stored or out of use for
a while, install the included exhaust and
carburetor dust caps to prevent foreign
matter from entering the engine.
Then, tighten flywheel on the crankshaft
using the tightening stick supplied or
clamping the crankshaft with Crankshaft
Clamp 1521 available as an optional extra.
INSTALLATION OF REPLACEMENT
PARTS
Apply epoxy glue or LOCTITE inside the
carburetor spacer.
Install the spacer onto the carburetor body
while rotating it.
Wipe off excess glue coming out of the
spacer with thinner.
Install the carburetor gasket onto the spacer.
CARBURETOR SPACER