Advertisement
(h)
Insert
the
tappet
(pay
attention
to
the shim inserted),
align the tappet-
guide hole with the dowel pin hole of
the
housing
and
insert
the
tappet
guide pin.
Before inserting the tap-
pet guide pin, attach the lock plate
and bend it to lock after
the guide
pin is installed.
(i)
Install the smoke set stopper, return
spring
and
washer,
and
install
a
cotter pin.
(j)
Tighten the delivery valve holder to
30 1b/ft.
(2)
Installation and Adjustment of Fuel Injection Pump
(a)
(b)
(c)
To install the pump assembly,
use
the
same
thickness
adjusting shim under the pump
as removed.
Confirm that the
projection of the control rack
fits
properly
in
the
forked
end
of
the
governor
lever.
The shim is available in nine
types from 0.2 mm (thickness)
to
1.0
mm
in
increments
of
0.1
mm.
Connect the fuel feed hose and
bleed
the
injection
pump
by
turning
on
the
keyswitch
or
Control rack
Pump
~AdjUsting
~
shim
depressing the preheat switch (generators).
Confirm the
injection
timing.
First remove
the deli very
valve holder, and after pulling out the delivery valve and
spr ing,
install the deli very valve holder only.
Tur n the
crankshaft
so
as
to
bring
11
piston
coming
up
on
its
compression stroke.
The injection time is the moment when
the fuel flowing from the outlet port of the valve holder
stops flowing.
Compare this moment to the timing mark on
the crankshaft pulley on the front cover mark.
If the stan-
dard
injection
timing
cannot
be
obtained,
adjust
by
increasing
or
decreasing
the
thickness
of
the
adjusting
shim.
As the shim thickness changes 0.1 mm, the inj ection
timing changes about 1·.
Where the above operation cannot
be done,
the adjustment may be made without removing the
valve and spring.
In this case, remove injection line *1 at
the injector side and slowly turn the crankshaft pulley nut
with a wrench.
The injection timing is the moment when the
fuel appears and swells at the end of the pipe, and this is
about 1· later than the normal injection timing.
The injec-
tion timing must be checked when the plunger is in the smoke
set
position,
that
is,
full
open
throttle.
73
Advertisement
