Rating:
Information injection-pump assembly
ZEXEL
104749-1790
1047491790
ISUZU
8941390820
8941390820
Cross reference number
ZEXEL
104749-1790
1047491790
ISUZU
8941390820
8941390820
Zexel num
Bosch num
Firm num
Name
104749-1790
8941390820 ISUZU
INJECTION-PUMP ASSEMBLY
4FC1J * K
4FC1J * K
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)
Right R
Right R
Injection timing adjustment
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
32.5
32
33
Difference in delivery
mm3/st.
2.5
Basic
*
Injection timing adjustment_02
Pump speed
r/min
2600
2600
2600
Average injection quantity
mm3/st.
15.5
14
17
Injection timing adjustment_03
Pump speed
r/min
2250
2250
2250
Average injection quantity
mm3/st.
30.9
28.8
33
Injection timing adjustment_04
Pump speed
r/min
1800
1800
1800
Average injection quantity
mm3/st.
32
30
34
Injection timing adjustment_05
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
32.5
31.5
33.5
Injection timing adjustment_06
Pump speed
r/min
600
600
600
Average injection quantity
mm3/st.
26.5
24.5
28.5
Injection quantity adjustment
Pump speed
r/min
2600
2600
2600
Average injection quantity
mm3/st.
15.5
14.5
16.5
Difference in delivery
mm3/st.
4.5
Basic
*
Injection quantity adjustment_02
Pump speed
r/min
2900
2900
2900
Average injection quantity
mm3/st.
4
Governor adjustment
Pump speed
r/min
375
375
375
Average injection quantity
mm3/st.
7.6
5.6
9.6
Difference in delivery
mm3/st.
2
Basic
*
Governor adjustment_02
Pump speed
r/min
375
375
375
Average injection quantity
mm3/st.
7.6
5.6
9.6
Governor adjustment_03
Pump speed
r/min
450
450
450
Average injection quantity
mm3/st.
3
Timer adjustment
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
60
50
70
Basic
*
Speed control lever angle
Pump speed
r/min
375
375
375
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
459
330
588
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
2000
2000
2000
Pressure
kPa
637.5
608
667
Pressure
kgf/cm2
6.5
6.2
6.8
0000001101
Pump speed
r/min
1250
1250
1250
Timer stroke
mm
3.9
3.7
4.1
Basic
*
_02
Pump speed
r/min
570
470
670
Timer stroke
mm
0.5
0.5
0.5
_03
Pump speed
r/min
1250
1250
1250
Timer stroke
mm
3.9
3.6
4.2
_04
Pump speed
r/min
1800
1800
1800
Timer stroke
mm
6.7
6.1
7.3
_05
Pump speed
r/min
2250
2250
2250
Timer stroke
mm
9
8.6
9.4
0000001201
Max. applied voltage
V
8
8
8
Test voltage
V
13
12
14
0000001501
Pump speed
r/min
1250
1250
1250
Atmospheric pressure difference
kPa
-21.9
-22.6
-21.2
Atmospheric pressure difference
mmHg
-164
-169
-159
Decrease qty
mm3/st.
3.2
2.2
4.2
Basic
*
_02
Pump speed
r/min
1250
1250
1250
Atmospheric pressure difference
kPa
-21.9
-22.6
-21.2
Atmospheric pressure difference
mmHg
-164
-169
-159
Decrease qty
mm3/st.
3.2
1.5
4.9
Timing setting
K dimension
mm
3.3
3.2
3.4
KF dimension
mm
5.8
5.7
5.9
MS dimension
mm
1.6
1.5
1.7
Pre-stroke
mm
0.25
0.23
0.27
Control lever angle alpha
deg.
20
16
24
Control lever angle beta
deg.
40.5
35.5
45.5
Test data Ex:
0000001501 ANEROID COMPENSATOR
ACS adjustment
Full load injection quantity at high altitudes and ACS adjusting method
1. Full load injection quantity adjustment
(1)Remove the ACS cover and remove the bellows and adjusting shim.
(2)Perform all adjustments as per the adjustment standard except for ACS adjustment.
2. ACS adjustment
(1)Assemble the ACS cover, bellows and adjusting shim.
(2)At N = N1, adjust using shims so that the decrease amount for altitude is as specified in the graph.
N:Pump speed
X1:Atmospheric pressure
X2:Altitude
Y:Decrease quantity
A:Adjustment value
B:Inspection value
----------
N1=1250r/min
----------
----------
N1=1250r/min
----------
0000001801 V-FICD ADJUSTMENT
Adjustment of the V-FICD
1. Adjust the actuator rod so that the clearance between the control lever and the FICD shaft is S1.
2. Apply negative pressure P1 to the actuator and confirm the full stroke.
----------
S1=1+1mm P1=-53.3kPa(-400mmHg)
----------
----------
S1=1+1mm P1=-53.3kPa(-400mmHg)
----------
Have questions with 104749-1790?
Group cross 104749-1790 ZEXEL
Isuzu
104749-1790
8941390820
INJECTION-PUMP ASSEMBLY
4FC1J
4FC1J