Information injection-pump assembly
BOSCH
9 400 612 447
9400612447
ZEXEL
101401-7721
1014017721
ISUZU
8972157042
8972157042

Rating:
Service parts 101401-7721 INJECTION-PUMP ASSEMBLY:
1.
_
6.
COUPLING PLATE
7.
COUPLING PLATE
8.
_
9.
_
11.
Nozzle and Holder
8-97200-570-2
12.
Open Pre:MPa(Kqf/cm2)
18.1{185}/21.1{215}
14.
NOZZLE
Cross reference number
BOSCH
9 400 612 447
9400612447
ZEXEL
101401-7721
1014017721
ISUZU
8972157042
8972157042
Zexel num
Bosch num
Firm num
Name
101401-7721
9 400 612 447
8972157042 ISUZU
INJECTION-PUMP ASSEMBLY
4HG1-T K 14BD INJECTION PUMP ASSY PE4AD PE
4HG1-T K 14BD INJECTION PUMP ASSY PE4AD 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
105780-8310
Nozzle
105780-0120
Bosch type code
1 688 901 990
Nozzle holder
105780-2240
Opening pressure
MPa
18
Opening pressure
kgf/cm2
184
Injection pipe
Outer diameter - inner diameter - length (mm) mm 6-2-600
Outer diameter - inner diameter - length (mm) mm 6-2-600
Overflow valve
134424-3920
Overflow valve opening pressure
kPa
127
107
147
Overflow valve opening pressure
kgf/cm2
1.3
1.1
1.5
Tester oil delivery pressure
kPa
255
255
255
Tester oil delivery pressure
kgf/cm2
2.6
2.6
2.6
Direction of rotation (viewed from drive side)
Left L
Left L
Injection timing adjustment
Direction of rotation (viewed from drive side)
Left L
Left L
Injection order
1-3-4-2
Pre-stroke
mm
3.8
3.75
3.85
Rack position
Point A R=A
Point A R=A
Beginning of injection position
Governor side NO.1
Governor 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
-
Rack position
12
Pump speed
r/min
1000
1000
1000
Average injection quantity
mm3/st.
54
53
55
Max. variation between cylinders
%
0
-3
3
Basic
*
Fixing the rack
*
Standard for adjustment of the maximum variation between cylinders
*
Injection quantity adjustment_02
Adjusting point
H
Rack position
9.1+-0.5
Pump speed
r/min
315
315
315
Average injection quantity
mm3/st.
23
21.7
24.3
Max. variation between cylinders
%
0
-10
10
Fixing the rack
*
Standard for adjustment of the maximum variation between cylinders
*
Injection quantity adjustment_03
Adjusting point
A
Rack position
R1(12)
Pump speed
r/min
1000
1000
1000
Average injection quantity
mm3/st.
54
53
55
Basic
*
Fixing the lever
*
Boost pressure
kPa
61.3
61.3
Boost pressure
mmHg
460
460
Injection quantity adjustment_04
Adjusting point
B
Rack position
R1+1
Pump speed
r/min
1500
1500
1500
Average injection quantity
mm3/st.
57.5
53.5
61.5
Fixing the lever
*
Boost pressure
kPa
61.3
61.3
Boost pressure
mmHg
460
460
Injection quantity adjustment_05
Adjusting point
C
Rack position
R2-0.9
Pump speed
r/min
500
500
500
Average injection quantity
mm3/st.
45.8
41.8
49.8
Fixing the lever
*
Boost pressure
kPa
0
0
0
Boost pressure
mmHg
0
0
0
Boost compensator adjustment
Pump speed
r/min
500
500
500
Rack position
R2-0.9
Boost pressure
kPa
13.3
12
14.6
Boost pressure
mmHg
100
90
110
Boost compensator adjustment_02
Pump speed
r/min
500
500
500
Rack position
R2(R1-0.
25)
Boost pressure
kPa
48
48
48
Boost pressure
mmHg
360
360
360
Timer adjustment
Pump speed
r/min
1150--
Advance angle
deg.
0
0
0
Remarks
Start
Start
Timer adjustment_02
Pump speed
r/min
1100
Advance angle
deg.
0.5
Timer adjustment_03
Pump speed
r/min
1535
Advance angle
deg.
4
3.5
4.5
Remarks
Finish
Finish
Test data Ex:
Governor adjustment

N:Pump speed
R:Rack position (mm)
(1)Torque cam stamping: T1
(2)Tolerance for racks not indicated: +-0.05mm.
(3)Boost compensator stroke: BCL
----------
T1=N40 BCL=0.9+-0.1mm
----------
----------
T1=N40 BCL=0.9+-0.1mm
----------
Speed control lever angle

F:Full speed
I:Idle
(1)Stopper bolt set position 'H'
----------
----------
a=42deg+-5deg b=(38.5deg)+-3deg
----------
----------
a=42deg+-5deg b=(38.5deg)+-3deg
Stop lever angle

N:Pump normal
S:Stop the pump.
(1)Use the hole at R = aa
(2)At pump speed bb and rack position cc, set the stopper bolt.
----------
aa=58mm bb=1500r/min cc=3.5+-0.2mm
----------
a=23deg+-5deg b=(31deg)+-5deg
----------
aa=58mm bb=1500r/min cc=3.5+-0.2mm
----------
a=23deg+-5deg b=(31deg)+-5deg
0000001501 RACK SENSOR

Rack sensor adjustment
1. Flange type rack sensor (rack sensor adjustment -5*20)
(1)These types of rack sensors do not need adjustment. Confirm the performance with the following procedures.
(2)Mount the rack sensor main body to the pump main body.
(3)Fix the pump lever at full.
(4)At supply voltage V1, pump speed N1 and rack position Ra, confirm that the amp's output voltage is Vist.
(5)Move the pump lever two or three times.
(6)Set again to full.
(7)Confirm that the amplifier output voltage is Vist.
(8)Fix the caution plate to the upper part of the rack sensor.
(For those without the caution plate instructions, make sure the nameplate of the rack sensor carries the "Don't hold here" caution.)
(9)Apply red paint to the rack sensor mounting bolts (2 places).
----------
V1=5+-0.01V N1=1500r/min Ra=R1(12)+1mm Vist=3.07+-0.28V
----------
----------
V1=5+-0.01V N1=1500r/min Ra=R1(12)+1mm Vist=3.07+-0.28V
----------
0000001601 ACS

(A) Set screw
(B) Push rod 1
(C) Push rod 2
(D) Cover
1. Aneroid compensator unit adjustment
(1)Select the push rod 2 to obtain L2.
(2)Screw in (A) to obtain L1.
2. Adjustment when mounting the governor.
(1)Set the speed of the pump to N1 r/min and fix the control lever at the full set position.
(2)Screw in the aneroid compensator to obtain the performance shown in the graph above.
(3)As there is hysterisis, measure when the absolute pressure drops.
(4)Hysterisis must not exceed rack position = h1.
----------
N1=1000r/min L1=(1.5)mm L2=24+-0.5mm h1=0.15mm
----------
Ra=R1(12)mm Rb=(R1-0.2)mm Pa=(79.4)+-2.7kPa((596)+-20mmHg) Pb=70.1+0.7kPa(526+-5mmHg) Q1=54+-1cm3/1000st Q2=53+-2cm3/1000st
----------
N1=1000r/min L1=(1.5)mm L2=24+-0.5mm h1=0.15mm
----------
Ra=R1(12)mm Rb=(R1-0.2)mm Pa=(79.4)+-2.7kPa((596)+-20mmHg) Pb=70.1+0.7kPa(526+-5mmHg) Q1=54+-1cm3/1000st Q2=53+-2cm3/1000st
0000001701 ACS

(A) Aneroid compensator
(B) Set screw
(C) Boost pressure inlet
(D) Rack positioning screw
(E): Aneroid compensator main body
(F) Boost compensator spring
(G): Aneroid compensator spring
(H): Adjusting notch
(I) Push rod
1. Instructions for adjusting the boost compensator with the aneroid compensator
(1)Select a pushrod to obtain L1 at full boost.
(2)Remove the aneroid compensator main body.
(3)Adjust the booster compensator stroke by turning the screw at (D.
(4)Adjust the beginning of boost compensator operation by turning the notch at (H).
(5)Install the aneroid compensator at full boost state.
(6)Turn (B)'s set screw so that the distance between the snapring and the body is L2.
(7)Screw in the aneroid compensator main body and adjust the point where it comes into play.
----------
L1=24+-0.5mm L2=1.5+-0.5mm
----------
----------
L1=24+-0.5mm L2=1.5+-0.5mm
----------
Timing setting

(1)Pump vertical direction
(2)Position of gear's standard threaded hole at No 1 cylinder's beginning of injection
(3)Stamping position on the A/T outer rim
(4)At the No 1 cylinder's beginning of injection, align with the aligning mark seen through the bracket's check hole and mark the A/T's bevel C1.
(5)B.T.D.C.: aa
----------
aa=7deg
----------
a=(60deg) b=(85deg)
----------
aa=7deg
----------
a=(60deg) b=(85deg)
Information:
9. Remove bracket assembly (16) and link (17). 10. Put identification marks on fuel racks (18) and (19), and remove the fuel racks. 11. Put identification marks on each spacer (20) and lifter (21) so they can be installed in their original position. 12. Remove fuel injection pump camshaft (22) from the pump housing.13. Remove O-ring seal (23). 14. Inspect link pivot shaft (24) and bracket locating pin (25). Make a replacement by removal of shaft (24) and dowel (25) with Tool (D). 15. Inspect upper bearing (26) and the lower bearing that hold the pinion gear in the pump housing.16. Make a replacement of bearings (26) if necessary.17. Inspect idler gear shaft (27). If a replacement is necessary, remove the shaft with Tooling (D). 18. Inspect fuel rack bearings (28) and camshaft bearings (29). If a replacement is necessary, remove bearings (28) and (29).19. Use Tooling (E) to remove bearings (28). 20. Remove regulator valve (30). 21. Remove pin (31) to disassemble the regulator valve, and inspect the components.22. Piston (32) must move freely in valve body (30).23. Make a reference to the Specifications for spring (34).24. Make a replacement of O-ring seals (33).Assemble Fuel Injection Pump Housing
Pin (2) must not extend out of either side of valve body (3).
1. Install spring (4), piston (1) and pin (2) in valve body (3).2. Put clean engine oil on the valve body and O-ring seals (5). Install the oil bypass valve in the pump housing. Tighten the bypass valve body to a torque of 68 14 N m (50 10 lb ft). 3. Install the camshaft front and rear bearings with Tooling (A). Install the front bearing until it is a distance of 1.0 0.5 mm (.04 .02 in) from the front surface of the pump housing. Make sure both oil holes in bearing are in alignment with the oil holes in the pump housing. 4. Put Tool (B) in the fuel pump housing with the dowels of Tool (B) in alignment with the left fuel rack bore. Install the bolt that holds the tool in place on the housing.5. Put a new bearing in position with the tab of the bearing up. Install the bearing with Tool (C) until the shoulder of Tool (C) makes contact with Tool (B).6. Turn Tool (B), and make an alignment of the dowels on Tool (B) with the right fuel rack bore.7. Do Step 3 again for the left fuel rack bearing. 8. Install shaft (6) to a height of 16.8 0.5 mm (.66 .02 in). 9. Make sure the chamfer on the lower bearing for the pinion gear is toward the inside and the notch is in the location shown. Install the bearing 28.4 0.5 mm (1.12 .02 in) below the bearing bore surface with Tooling (D).10. Make sure the chamfer on the upper bearing for the pinion gear is toward the inside and the notch is in the location shown. Use
Pin (2) must not extend out of either side of valve body (3).
1. Install spring (4), piston (1) and pin (2) in valve body (3).2. Put clean engine oil on the valve body and O-ring seals (5). Install the oil bypass valve in the pump housing. Tighten the bypass valve body to a torque of 68 14 N m (50 10 lb ft). 3. Install the camshaft front and rear bearings with Tooling (A). Install the front bearing until it is a distance of 1.0 0.5 mm (.04 .02 in) from the front surface of the pump housing. Make sure both oil holes in bearing are in alignment with the oil holes in the pump housing. 4. Put Tool (B) in the fuel pump housing with the dowels of Tool (B) in alignment with the left fuel rack bore. Install the bolt that holds the tool in place on the housing.5. Put a new bearing in position with the tab of the bearing up. Install the bearing with Tool (C) until the shoulder of Tool (C) makes contact with Tool (B).6. Turn Tool (B), and make an alignment of the dowels on Tool (B) with the right fuel rack bore.7. Do Step 3 again for the left fuel rack bearing. 8. Install shaft (6) to a height of 16.8 0.5 mm (.66 .02 in). 9. Make sure the chamfer on the lower bearing for the pinion gear is toward the inside and the notch is in the location shown. Install the bearing 28.4 0.5 mm (1.12 .02 in) below the bearing bore surface with Tooling (D).10. Make sure the chamfer on the upper bearing for the pinion gear is toward the inside and the notch is in the location shown. Use
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Isuzu
101401-7721
9 400 612 447
8972157042
INJECTION-PUMP ASSEMBLY
4HG1-T
4HG1-T