4-
8
CAMSHAFT
Camshaft for
"D"
type engine is made
from
special cast
iron
integrated with cam gear.
Camshaft for
"B"
type engine
works
as
PTO
shaft and is made from forged carbon
steel and the cam gear
is
pressure-fitted.
Camshaft has three cams, one for intake,
one
for
exhaust, and one
€or
injection
pump.
A
release lever for centrifugal
decompressor
is
assembled to the camshaft.
(See Fig.
7.)
I
FIG.
7
4-
9
TAPPEU
Tappets are made from sintered steel.
They are precisely finished
by
grinding
after
sintering.
(See
Fig.
8.)
FIG.
8
4-
10
VALVE
Valves are made from
forged
heat resistant
alloy.
Stellite
is
fused to the head
of
exhaust
valve for added durability. (See
Fig.
9.)
EXHAUST VALVE INTAKE VALVE
FIG.
9
-7-
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