4-
3
CRANKSHAFT
The crankshaft
is
forged carbon steel, and the
e
crank pin is induction-hardened. The output end
of the shaft has a crankshaft gear and balancer
gear which are pressed into position.
(See Fig.
3.)
BALANCER GEAR
\
CRANKSHAFT
GEAR
Fig.
3
4-4
CONNECTING
ROD
AND
PISTON
The connecting rod is forged aluminum alloy,
and its large and small ends function as
bearings. The piston
is
an
aluminum -alloy
casting, and carries two compression rings and
one oil ring.(See
Fig.
4.)
Fig.
4
4-
5
CAMSHAFT
The camshaft
is
a hollow shaped and made
of
special cast iron with the camshaft gear casted
together.
A .
cenerifugal decompression lever
is
assembled
on the camshft. The lubrication
oil
pump
is
driven
by
the pin installed on the end
of
the
camshaft. (See
Fig.
5.)
Fig.
5
-5-
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