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Basic engine parts, Installation of replacement parts – O.S. Engines 21VZ-M User Manual

Page 7

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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