104304-4180 ZEXEL INJECTION-PUMP ASSEMBLY Calibration Data 1043044180 8941447720

Information Cross number Calibration Data Calibration Data Ex

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Information injection-pump assembly

ZEXEL 104304-4180 1043044180

ISUZU 8941447720 8941447720

Cross reference number

ZEXEL 104304-4180 1043044180

ISUZU 8941447720 8941447720

Zexel num

Bosch num

Firm num

Name

104304-4180
104304-4082

8941447720 ISUZU

INJECTION-PUMP ASSEMBLY
4FA1 *

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 B R=B

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 1300 1300 1300

Average injection quantity mm3/st. 29 28.5 29.5

Max. variation between cylinders % 0 -2.5 2.5

Basic *

Fixing the lever *

Injection quantity adjustment_02

Adjusting point B

Rack position 9.2

Pump speed r/min 700 700 700

Average injection quantity mm3/st. 27.2 25.2 29.2

Max. variation between cylinders % 0 -4 4

Fixing the lever *

Injection quantity adjustment_03

Adjusting point C

Rack position 7.1+-0.5

Pump speed r/min 425 425 425

Average injection quantity mm3/st. 8 7 9

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 E

Rack position -

Pump speed r/min 1100 1100 1100

Average injection quantity mm3/st. 28.5 27.5 29.5

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 between N = N1 and N = N2 (5)Rack difference between N = N3 and N = N4
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L1=1.2mm N1=1300r/min N2=1000r/min N3=1300r/min N4=700r/min
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Speed control lever angle

F:Full speed I:Idle (1)Stopper bolt setting
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a=8deg+-3deg b=30deg+-6deg

Timing setting

(1)Pump vertical direction (2)Position of gear's standard threaded hole at No 1 cylinder's beginning of injection (same as key groove position) (3)B.T.D.C.: aa (4)-
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aa=17deg
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a=(50deg)