104304-4501 ZEXEL 9 400 612 790 BOSCH INJECTION-PUMP ASSEMBLY 9400612790 1043044501 8943274931

Information Cross number Calibration Data Calibration Data Ex

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Information injection-pump assembly

BOSCH 9 400 612 790 9400612790

ZEXEL 104304-4501 1043044501

ISUZU 8943274931 8943274931

Service parts 104304-4501 INJECTION-PUMP ASSEMBLY:

1. _

2. FUEL INJECTION PUMP 104300-4660

3. GOVERNOR

4. SUPPLY PUMP

5. AUTOM. ADVANCE MECHANIS

6. COUPLING PLATE

7. COUPLING PLATE

8. _

9. _

10. NOZZLE AND HOLDER ASSY 105141-2281

11. Nozzle and Holder 5-15300-117-1

12. Open Pre:MPa(Kqf/cm2) 11.8{120}

13. NOZZLE-HOLDER 105071-1380

14. NOZZLE 105000-1860

15. NOZZLE SET

Include in #1:

104304-4501 as INJECTION-PUMP ASSEMBLY

Cross reference number

BOSCH 9 400 612 790 9400612790

ZEXEL 104304-4501 1043044501

ISUZU 8943274931 8943274931

Zexel num

Bosch num

Firm num

Name

104304-4501

9 400 612 790

8943274931 ISUZU

INJECTION-PUMP ASSEMBLY
4FE1 * K 14BX PES4K PE

Calibration Data:

Adjustment conditions

Test oil
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

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

Injection timing adjustment

Direction of rotation (viewed from drive side)
Right R

Injection order 1-3-4-2

Pre-stroke mm 2.1 2.05 2.15

Rack position
Point A R=A

Beginning of injection position
Drive side NO.1

Difference between angles 1
Cal 1-3 deg. 90 89.5 90.5

Difference between angles 2
Cal 1-4 deg. 180 179.5 180.5

Difference between angles 3
Cyl.1-2 deg. 270 269.5 270.5

Injection quantity adjustment

Adjusting point A

Rack position 8.2

Pump speed r/min 1000 1000 1000

Average injection quantity mm3/st. 25.6 23.6 27.6

Max. variation between cylinders % 0 -4 4

Fixing the lever *

Injection quantity adjustment_02

Adjusting point B

Rack position 7.8

Pump speed r/min 1250 1250 1250

Average injection quantity mm3/st. 26.4 25.4 27.4

Max. variation between cylinders % 0 -2.5 2.5

Basic *

Fixing the lever *

Injection quantity adjustment_03

Adjusting point -

Rack position 7+-0.5

Pump speed r/min 450 450 450

Average injection quantity mm3/st. 7.6 6.6 8.6

Max. variation between cylinders % 0 -14 14

Fixing the lever *

Remarks
Adjust only variation between cylinders; adjust governor according to governor specifications.

Injection quantity adjustment_04

Adjusting point D

Rack position 13+1

Pump speed r/min 100 100 100

Average injection quantity mm3/st. 34.4 34.4

Fixing the lever *

Test data Ex:

Governor adjustment

N:Pump speed R:Rack position (mm) (1)Torque control stroke: L1 (2)Set the idle spring. (3)Main spring setting (4)Rack difference from N = N1
----------
L1=0.4mm N1=1250r/min
----------

Speed control lever angle

F:Full speed I:Idle (1)Stopper bolt setting
----------

----------
a=7deg+-3deg b=23deg+-6deg

Stop lever angle

N:Pump normal S:Stop the pump.
----------

----------
a=100deg+-5deg b=(38deg)

Timing setting

(1)Pump vertical direction (2)Position of gear's standard threaded hole at No 1 cylinder's beginning of injection (3)- (4)-
----------
aa=20deg
----------
a=(50deg)