S.l
ENGINE
G1700·G1800·G1900·G2000
WSM.10830
Pressure falling
time
Allowable
limit
5 seconds
DISASSEMBLING AND ASSEMBLING
(1) Injection Nozzle
Injection Nozzle
1.
Remove
the
injection
nozzle
from
the
cylinder head.
2.
Secure the nozzle retai ning
nut
(9)
in
a vise.
3.
Remove
the
nozzle holder (3), and
take
out
the
adjusting
washer (4), nozzle spring (5), push rod (6), distance piece (7)
and nozzle piece (8).
(When reassembling)
• Assemble
the
injection nozzle
in
clean fuel.
• Install the push rod (6),
noting
its
direction.
Tightening
torque
Fuel
overflow
pip
..
'lut
19.6
to
24.5 N'm
20
to
2.5 kgf·m
14.5
to
18.1
ft-Ibs
Nozzle holder (3)
to
nozzle retaining
nut
(9)
34.3
to
39.2 N·m
3.5
to
4.0 kgf·m
25.3
to
28.9 ft-Ibs
Injection nozzle
to
cylinder head
49.0
to
68.6 N'm
5.0to
7.0 kgf·m
36.2
to
50.6 ft-Ibs
C095F145
• IMPORTANT
(1) Fuel
Overflow
Pipe
(6)
Push
Rod
• The nozzle piece is precisely finished. Do
not
use a piece
of
Nut
(7) Distance Piece
metal
but
a piece
of
wood
to
remove
the
carbon deposits.
(2) Plain Washer
(8)
Nozzle Piece
•
After
assembling
the
nozzle, be sure
to
adjust
the
injection
(3) Nozzle Holder
(9) Nozzle Retaining
pressure. (See HFuellnjection Pressure")
(4) Adjusting Washer
Nut
(5) Nozzle Spring
B08lP028 _
(1) Speed Control Lever
Delivery Valve Fuel Tightness
1.
Remove the
injection
pipes and
injection
nozzles.
2.
Install the pressure tester
(see
page S.G-19)
to
the
injection
pump.
3.
Set
the
speed
control
lever
(1)
to
the
maximum
fuel
discharge position.
4.
Turn the
flywheel
counterclockwise
to
raise
the
fuel pressure
to
14.71
MPa (150 kgflcm
2
, 2133 psi).
5.
Set
the
plunger
of
the injection
pump
at
the
bottom
dead
center
to
reduce
the
delivery chamber pressure
to
zero.
6.
Measure
the
falling
time
of
the
fuel pressure
from
14.71
to
13.73
MPa
(from
150
to
140
kgffcm
2
,
from
2133
to
1991
psi).
7.
If
the
measurement
is
less
than
the
allowable
limit,
replace
the
delivery valve
or
injection
pump
assembly.
S.1·44
To Next Page
Loading...
Need help?
General
