Rating:
Information injection-pump assembly
ZEXEL
104304-4221
1043044221
ISUZU
8941459112
8941459112
Service parts 104304-4221 INJECTION-PUMP ASSEMBLY:
1.
_
3.
GOVERNOR
5.
AUTOM. ADVANCE MECHANIS
6.
COUPLING PLATE
7.
COUPLING PLATE
8.
_
9.
_
11.
Nozzle and Holder
5-15300-117-1
12.
Open Pre:MPa(Kqf/cm2)
11.8{120}
15.
NOZZLE SET
Include in #1:
104304-4221
as INJECTION-PUMP ASSEMBLY
Cross reference number
ZEXEL
104304-4221
1043044221
ISUZU
8941459112
8941459112
Zexel num
Bosch num
Firm num
Name
104304-4221
8941459112 ISUZU
INJECTION-PUMP ASSEMBLY
4FC1 * K 14BX PES4K PE
4FC1 * K 14BX PES4K PE
Calibration Data:
Adjustment conditions
Test oil
1404 Test oil ISO4113 or {SAEJ967d}
1404 Test oil ISO4113 or {SAEJ967d}
Test oil temperature
degC
40
40
45
Nozzle and nozzle holder
105780-8140
Bosch type code
EF8511/9A
Nozzle
105780-0000
Bosch type code
DN12SD12T
Nozzle holder
105780-2080
Bosch type code
EF8511/9
Opening pressure
MPa
17.2
Opening pressure
kgf/cm2
175
Injection pipe
Outer diameter - inner diameter - length (mm) mm 6-2-600
Outer diameter - inner diameter - length (mm) mm 6-2-600
Tester oil delivery pressure
kPa
157
157
157
Tester oil delivery pressure
kgf/cm2
1.6
1.6
1.6
Direction of rotation (viewed from drive side)
Right R
Right R
Injection timing adjustment
Direction of rotation (viewed from drive side)
Right R
Right R
Injection order
1-3-4-2
Pre-stroke
mm
2.1
2.05
2.15
Rack position
Point A R=A
Point A R=A
Beginning of injection position
Drive side NO.1
Drive side NO.1
Difference between angles 1
Cal 1-3 deg. 90 89.5 90.5
Cal 1-3 deg. 90 89.5 90.5
Difference between angles 2
Cal 1-4 deg. 180 179.5 180.5
Cal 1-4 deg. 180 179.5 180.5
Difference between angles 3
Cyl.1-2 deg. 270 269.5 270.5
Cyl.1-2 deg. 270 269.5 270.5
Injection quantity adjustment
Adjusting point
A
Rack position
8.7
Pump speed
r/min
1500
1500
1500
Average injection quantity
mm3/st.
36.6
35.6
37.6
Max. variation between cylinders
%
0
-2.5
2.5
Basic
*
Fixing the lever
*
Injection quantity adjustment_02
Adjusting point
-
Rack position
5.6+-0.5
Pump speed
r/min
750
750
750
Average injection quantity
mm3/st.
8.7
7.7
9.7
Max. variation between cylinders
%
0
-14
14
Fixing the lever
*
Remarks
Adjust only variation between cylinders; adjust governor according to governor specifications.
Adjust only variation between cylinders; adjust governor according to governor specifications.
Test data Ex:
Governor adjustment
N:Pump speed
R:Rack position (mm)
(1)Set the idle spring.
(2)Main spring setting
----------
----------
----------
----------
Speed control lever angle
F:Full speed
I:Idle
(1)Stopper bolt setting
----------
----------
a=7deg+-3deg b=21deg+-6deg
----------
----------
a=7deg+-3deg b=21deg+-6deg
Timing setting
(1)Pump vertical direction
(2)Position of gear's standard threaded hole at No 1 cylinder's beginning of injection
(3)B.T.D.C.: aa
(4)-
----------
aa=17deg
----------
a=(50deg)
----------
aa=17deg
----------
a=(50deg)
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Isuzu
104304-4221
8941459112
INJECTION-PUMP ASSEMBLY
4FC1
4FC1