106873-7750 ZEXEL INJECTION-PUMP ASSEMBLY Calibration Data 1068737750

Information Cross number Calibration Data Calibration Data Ex

Information injection-pump assembly

ZEXEL 106873-7750 1068737750

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Service parts 106873-7750 INJECTION-PUMP ASSEMBLY:

1. _

2. FUEL INJECTION PUMP 106080-7250

3. GOVERNOR 105923-3130

4. SUPPLY PUMP 105237-5010

5. AUTOM. ADVANCE MECHANIS 105691-3910

6. COUPLING PLATE 105664-2020

7. COUPLING PLATE

8. _

9. _

10. NOZZLE AND HOLDER ASSY 105110-7450

11. Nozzle and Holder ME093733

12. Open Pre:MPa(Kqf/cm2) 15.7{160}/21.6{220}

13. NOZZLE-HOLDER 105041-4120

14. NOZZLE

15. NOZZLE SET 105019-0620

Include in #1:

106873-7750 as INJECTION-PUMP ASSEMBLY

Cross reference number

ZEXEL 106873-7750 1068737750

Zexel num

Bosch num

Firm num

Name

106873-7750

INJECTION-PUMP ASSEMBLY

Calibration Data:

Adjustment conditions

Test oil
1404 Test oil ISO4113 or {SAEJ967d}

Test oil temperature degC 40 40 45

Nozzle and nozzle holder 105780-8250

Bosch type code 1 688 901 101

Nozzle 105780-0120

Bosch type code 1 688 901 990

Nozzle holder 105780-2190

Opening pressure MPa 20.7

Opening pressure kgf/cm2 211

Injection pipe
Outer diameter - inner diameter - length (mm) mm 8-3-600

Overflow valve 131425-0220

Overflow valve opening pressure kPa 157 123 191

Overflow valve opening pressure kgf/cm2 1.6 1.25 1.95

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)
Right R

Injection timing adjustment

Direction of rotation (viewed from drive side)
Right R

Injection order 1-2-7-3- 4-5-6-8

Pre-stroke mm 3.9 3.85 3.95

Beginning of injection position
Governor side NO.1

Difference between angles 1
Cyl.1-2 deg. 45 44.5 45.5

Difference between angles 2
Cal 1-7 deg. 90 89.5 90.5

Difference between angles 3
Cal 1-3 deg. 135 134.5 135.5

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

Difference between angles 5
Cal 1-5 deg. 225 224.5 225.5

Difference between angles 6
Cal 1-6 deg. 270 269.5 270.5

Difference between angles 7
Cal 1-8 deg. 315 314.5 315.5

Injection quantity adjustment

Adjusting point -

Rack position 11.5

Pump speed r/min 700 700 700

Each cylinder's injection qty mm3/st. 115 111.5 118.5

Basic *

Fixing the rack *

Standard for adjustment of the maximum variation between cylinders *

Injection quantity adjustment_02

Adjusting point Z

Rack position 8+-0.5

Pump speed r/min 430 430 430

Each cylinder's injection qty mm3/st. 19 16.1 21.9

Fixing the rack *

Standard for adjustment of the maximum variation between cylinders *

Injection quantity adjustment_03

Adjusting point A

Rack position R1(11.5)

Pump speed r/min 700 700 700

Average injection quantity mm3/st. 115 114 116

Basic *

Fixing the lever *

Injection quantity adjustment_04

Adjusting point B

Rack position R1+0.9

Pump speed r/min 1100 1100 1100

Average injection quantity mm3/st. 117 113 121

Fixing the lever *

Injection quantity adjustment_05

Adjusting point C

Rack position R1-0.6

Pump speed r/min 500 500 500

Average injection quantity mm3/st. 111 107 115

Fixing the lever *

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)Damper spring setting
----------
T1=AC74
----------

Timer adjustment

(1)Adjusting range (2)Step response time (N): Speed of the pump (L): Load (theta) Advance angle (Srd1) Step response time 1 (Srd2) Step response time 2 1. Adjusting conditions for the variable timer (1)Adjust the clearance between the pickup and the protrusion to L.
----------
L=1-0.2mm N2=800r/min C2=(10deg) t1=2.5--sec. t2=2.5--sec.
----------
N1=750++r/min P1=0kPa(0kgf/cm2) P2=392kPa(4kgf/cm2) C1=10+-0.3deg R01=0/4load R02=4/4load

Speed control lever angle

F:Full speed I:Idle (1)Use the hole at R = aa (2)Stopper bolt set position 'H' (3)Viewed from feed pump side.
----------
aa=37.5mm
----------
a=32deg+-5deg b=(42deg)+-3deg

Stop lever angle

N:Pump normal S:Stop the pump. (1)Use the hole at R = aa (2)Set the stopper bolt so that speed = bb and rack position = cc. (Confirm non-injection.) (3)Normal engine position (Rack position corresponding to dd)
----------
aa=54mm bb=1100r/min cc=3+-0.3mm dd=17.5mm
----------
a=41deg+-5deg b=5.5deg+-5deg c=(31deg)

0000001501 RACK SENSOR

(VR) measurement voltage (I) Part number of the control unit (G) Apply red paint. (H): End surface of the pump 1. Rack sensor adjustment (-0620) (1)Fix the speed control lever at the full position (2)Set the speed to N1 r/min. (If the boost compensator is provided, apply boost pressure.) (3)Adjust the bobbin (A) so that the rack sensor's output voltage is VR+-0.01. (4)At that time, rack position must be Ra. (5)Apply G at two places. Connecting part between the joint (B) and the nut (F) Connecting part between the joint (B) and the end surface of the pump (H)
----------
N1=1100r/min Ra=R1(11.5)+0.9mm
----------

Timing setting

(1)Pump vertical direction (2)Coupling's key groove position at No 1 cylinder's beginning of injection (3)B.T.D.C.: aa (4)-
----------
aa=4deg
----------
a=(50deg)

Information:

Make reference to Guideline For Reusable Parts; Pistons, Form No. SEBF8049; Cylinder Liners, Form No. SEBF8068; and Piston Pins And Retaining Rings, Form No. SEBF8051. For installation, number on tab groove side of connecting rod is to be positioned toward opposite side of engine from camshaft.Top And Intermediate Ring
The 8T3150 Keystone Piston Ring Groove Gauge is necessary for measuring ring groove in keystone style pistons. For correct use of the gauge group, see the instruction card that is with the gauge group.Install piston rings with "UP" side toward top of piston.(1) Top Ring has the mark "UP-1."(2) Intermediate ring has the mark "UP-2".Clearance between ends of piston ring when installed in a cylinder liner with a bore size of 137.16 mm (5.400 in)Top ring ... 0.724 0.191 mm (.0285 .0075 in)Intermediate ring ... 1.080 0.190 mm (.0425 .0075 in)Increase in clearance between ends of piston rings for each 0.03 mm (.001 in) increase in cylinder liner bore size ... 0.08 mm (.003 in)Oil Control Ring
(3) Install oil control ring with the gap in the spring 180° away from the gap in the ring. White portion of spring must be visible at the ring end gap.Width of groove in piston for piston ring (new) ... 3.210 0.010 mm (.1264 .0004 in)Thickness of piston ring (new) ... 3.137 0.013 mm (.1235 .0005 in)Clearance between groove and piston ring (new) ... 0.073 0.023 mm (.0029 .0009 in)Maximum permissible clearance (worn) ... 0.15 mm (.006 in)Clearance between ends of piston ring when installed in a cylinder liner with a bore size of 137.16 mm (5.400 in) ... 0.572 0.191 mm (.0225 .0075 in)Increase in clearance between ends of piston ring for each 0.03 mm (.001 in) increase in cylinder liner bore size ... 0.08 mm (.003 in)Piston Pin Bore
(4) Bore in piston for pin. 1991 Model with elliptical pin bore (310 - 425 hp) Vertical ... 50.814 0.004 mm (2.0005 .0001 in)Horizontal ... actual vertical diameter plus 0.032 to 0.048 mm (.0012 to .0019 in)Clearance between pin and bore in piston ... 0.010 to 0.028 mm (.0004 to .0011 in)Permissible clearance (worn) ... 0.05 mm (.002 in)Pin diameter ... 50.795 0.005 mm (1.9998 .0002 in) Low Crevice Volume and Gallery Pistons Bore in piston for pin ... 50.814 0.004 mm (2.0005 .0001 in)Clearance between pin and bore in piston ... 0.010 to 0.028 mm (.0004 to .0011 in)Permissible clearance (worn) ... 0.05 mm (.002 in)Pin diameter ... 50.795 0.005 mm (1.9998 .0002 in)All Other Pistons Bore in piston for pin ... 50.815 0.008 mm (2.0006 .0003 in)Clearance between pin and bore in piston ... 0.007 to 0.032 mm (.0003 to .0013 in)Permissible clearance (worn) ... 0.05 mm (.002 in)Pin diameter ... 50.795 0.005 mm (1.9998 .0002 in)