B1700·B2100·B2400 WSM,11770
1 ENGINE
[5]
FUEL
SYSTEM
CHECKING
AND
ADJUSTING
(1) Injection Pump
Injection Timing
III
IMPORTANT
• When inspecting the fuel injection timing, the
timing
control
actuates during starting and the correct fuel injection
timing
cannot
be
measured.
1.
Remove
the injection pipes.
2.
Remove
the engine stop solenoid,
push
in the control rack
of
the injection pump
by
5
mm
(0.2
in.) and hold
it
at
that
position.
3.
Turn the flywheel counterclockwise until fuel flows from the
delivery valve holder.
4.
Continue
to
turn the flywheel slowly,
and
stop
it
as
soon
as
the fuel level
at
the
tip
of
the delivery valve holder begins
to
increase.
5.
Check
to
see
if
the timing angle lines on
the
flywheel
is
aligned
with
the alignment mark
(2).
6.
If
the timing
is
out
of
adjustment, readjust the
timing
with
shims.
0.30
to
0.33 rad. (17°
to
19°)
before
ToO.C.
Factory
spec.
Injection
timing
3
o
C095F146
(5) 2-hole: 0.20 mm
(6)
1-hole:
0.25 mm
(7)
Without
hole:
0.30 mm
(8) Timing
Window
(9)
Rib
A078F001
III
NOTE
•
The
sealant
is
applied
to
both sides
of
the soft metal gasket
shim.
The
liquid gasket
is
not required
for
assembling.
• Shims are available in thickness
of
0.20 mm, 0.25 mm and
0.30 mm. Combine these shims
for
adjustments.
• Addition
or
reduction
of
shim (0.05 mm, 0.0020 in.) delays or
advances the injection timing by approx. 0.0087 rad. (0.5°).
• In disassembling and replacing,
be
sure
to
use
the
same
number
of
new
gasket shims
with
the
same
thickness.
(Reference)
..
The
alignment mark
(2)
of
the injection timing
(1)
is
not
in
a
Ii
gnment
with
the center
of
the timing window
(8)
.
..
The
above mark
comes
aligned
with
the center
of
the clutch
housing rib
(9).
(1)
Timing
(2)
Alignment
Mark
(3)
Control
Rack
(4)
Shim
(Soft
Metal
Gasket Shim)
B177F109
1-547
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