Information injection-pump assembly
ZEXEL
104740-1270
1047401270
ISUZU
8944145550
8944145550
Rating:
Cross reference number
ZEXEL
104740-1270
1047401270
ISUZU
8944145550
8944145550
Zexel num
Bosch num
Firm num
Name
Calibration Data:
Adjustment conditions
Test oil
1404 Test oil ISO4113orSAEJ967d
1404 Test oil ISO4113orSAEJ967d
Test oil temperature
degC
45
45
50
Nozzle
105000-2010
Bosch type code
NP-DN12SD12TT
Nozzle holder
105780-2080
Opening pressure
MPa
14.7
14.7
15.19
Opening pressure
kgf/cm2
150
150
155
Injection pipe
Inside diameter - outside diameter - length (mm) mm 2-6-840
Inside diameter - outside diameter - length (mm) mm 2-6-840
Transfer pump pressure
kPa
20
20
20
Transfer pump pressure
kgf/cm2
0.2
0.2
0.2
Direction of rotation (viewed from drive side)
Left L
Left L
Injection timing adjustment
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
49.7
49.2
50.2
Difference in delivery
mm3/st.
4
Basic
*
Injection timing adjustment_02
Pump speed
r/min
2000
2000
2000
Average injection quantity
mm3/st.
14.1
12.6
15.6
Injection timing adjustment_03
Pump speed
r/min
1800
1800
1800
Average injection quantity
mm3/st.
48.2
45.7
50.7
Injection timing adjustment_04
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
49.7
48.7
50.7
Injection timing adjustment_05
Pump speed
r/min
600
600
600
Average injection quantity
mm3/st.
45.1
42.6
47.6
Injection quantity adjustment
Pump speed
r/min
2000
2000
2000
Average injection quantity
mm3/st.
14.1
13.1
15.1
Difference in delivery
mm3/st.
4
Basic
*
Injection quantity adjustment_02
Pump speed
r/min
2050
2050
2050
Average injection quantity
mm3/st.
5.5
Governor adjustment
Pump speed
r/min
300
300
300
Average injection quantity
mm3/st.
7.8
5.8
9.8
Difference in delivery
mm3/st.
2
Basic
*
Governor adjustment_02
Pump speed
r/min
300
300
300
Average injection quantity
mm3/st.
7.8
5.8
9.8
Governor adjustment_03
Pump speed
r/min
400
400
400
Average injection quantity
mm3/st.
2
Timer adjustment
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
65
60
70
Basic
*
Speed control lever angle
Pump speed
r/min
300
300
300
Average injection quantity
mm3/st.
0
0
0
Remarks
Magnet OFF
Magnet OFF
0000000901
Pump speed
r/min
1250
1250
1250
Overflow quantity
cm3/min
395
265
525
Stop lever angle
Pump speed
r/min
1250
1250
1250
Pressure
kPa
470.5
451
490
Pressure
kgf/cm2
4.8
4.6
5
Basic
*
Stop lever angle_02
Pump speed
r/min
1250
1250
1250
Pressure
kPa
470.5
451
490
Pressure
kgf/cm2
4.8
4.6
5
Stop lever angle_03
Pump speed
r/min
1800
1800
1800
Pressure
kPa
588.5
559
618
Pressure
kgf/cm2
6
5.7
6.3
Stop lever angle_04
Pump speed
r/min
2150
2150
2150
Pressure
kPa
706
677
735
Pressure
kgf/cm2
7.2
6.9
7.5
0000001101
Pump speed
r/min
1250
1250
1250
Timer stroke
mm
2.9
2.7
3.1
Basic
*
_02
Pump speed
r/min
1250
1250
1250
Timer stroke
mm
2.9
2.6
3.2
_03
Pump speed
r/min
1800
1800
1800
Timer stroke
mm
6.2
5.6
6.8
_04
Pump speed
r/min
2150
2150
2150
Timer stroke
mm
8.2
7.8
8.6
0000001201
Max. applied voltage
V
8
8
8
Test voltage
V
13
12
14
Timing setting
K dimension
mm
3.3
3.2
3.4
KF dimension
mm
5.8
5.7
5.9
MS dimension
mm
1.2
1.1
1.3
Control lever angle alpha
deg.
25
21
29
Control lever angle beta
deg.
38
33
43
Information:
TIMING MARKS2. Remove the plug from the timing pin hole in fuel injection pump housing and install timing pin (1).
TIMING PIN INSTALLED
1. FT887 Timing Pin (Fabricated Tool).3. Remove bolts (2) and tachometer drive assembly (3) from the fuel injection pump camshaft.
PUMP DRIVE GEAR
2. Bolts (three). 3. Tachometer drive assembly. 4. Drive gear.4. Remove the drive gear (4) from the fuel injection pump camshaft.
TIMING ADVANCE
5. Retaining screw. 6. Washer. 7. Automatic timing advance.5. Remove retaining screw (5), washer (6), and automatic timing advance (7) from the engine camshaft.6. Install puller (8), with spacer (10) over the shaft in the camshaft and spacer (9) on spacer (10) as shown and remove the gear from the camshaft.
REMOVING GEAR (Typical Example)
8. 1P2321 Puller. 9. 8S5579 Spacer. 10. 9S9155 Spacer.Install Camshaft Gear
1. Heat the gear to a temperature of approximately 400° F (204° C) before installing on the camshaft.
Do not head the gear with a torch. Do not heat the gear to a temperature of more than 600° F (315° C). Heating the gear with a torch or to a temperature of more than 600° F (315° C) may cause the two drive dowels for the automatic timing advance to loosen and come out of the gear.
TIMING MARKS2. Align slot in gear hub with the pin in the camshaft. Install the gear on the camshaft with timing mark on gear aligned with timing mark on crankshaft gear. Be sure the gear is completely seated against the shoulder of the camshaft.
Do not drive the gear on the camshaft. Serious damage can result to camshaft or camshaft thrust pin.
3. Align holes in weights with dowels in gear and install the automatic timing advance.4. Align pin (11) in washer (6) with hole (12) in camshaft and install washer (6).
INSTALLING WASHER
6. Washer. 11. Pin. 12. Hole.5. Install retaining screw (5) and tighten to 108 36 lb. in. (124.5 41.5 cm.kg). Stake screw (5) in two places.
Stake retaining screw (5) carefully. Heavy blows on washer or retaining screw can force the shaft extension too far into the camshaft and eliminate all end clearance.
STAKING SCREW (Typical Example)
5. Retaining screw.6. After retaining screw (5) is staked, the gear and weight assembly requires .003 to .027 in. (0.08 to 0.69 mm) end clearance to prevent binding against the washer, camshaft end, or camshaft gear.7. Put timing plate (14) on the engine and thread bolt (13) into the timing gear.
TIMING PLATE INSTALLED
13. Bolt. 14. 5P950 Timing Plate.8. Install drive gear (4) on the fuel injection pump camshaft with the holes in the position shown and the part number facing out. To be able to advance the timing adjustment without removing the front cover, position gear (4) in the direction of the arrow so the bolt holes in the fuel injection pump camshaft are off center as shown. The bolts must thread freely into the holes in the fuel injection pump camshaft.
GEAR INSTALLED
4. Drive gear.9. Install tachometer drive assembly (3) and tighten finger tight.10. Install bolts (2) and tighten the bolts