DIESEL
ENGINE
05
SERIES
WSM,
01641
-
I
101
640F10140
I
During low-speed travel
As
the centrifugal force applied to flyweight
(6)
is
small, spring force presses the flyweight inward,
permitting driving bolt
(4)
to come in contact with
flyweight at the position shown in the figure,
(4)
Driving
Bolt
(8)
Hub
Bolt
01640M10050
During medium- to high-speed travel
As
engine speed increases] the centrifugal force
applied to flyweight
(6)
increases] expanding
it
around
hub bolt
(8) in the direction of the arrow, thereby rotating
the position (where driving bolt
(4)
is in contact with
flyweight
(6)) through angle
0
as shown in the figure.
Therefore] since the fuel camshaft rotates
from
injection pump gear
(2)
in the rotational direction through
angle
0,
injection timing is advanced.
(6)
Flyweight
0164OM10060
M-39
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