Information injection-pump assembly
BOSCH
9 400 611 503
9400611503
ZEXEL
101492-0991
1014920991
ISUZU
8972142952
8972142952

Rating:
Service parts 101492-0991 INJECTION-PUMP ASSEMBLY:
1.
_
5.
AUTOM. ADVANCE MECHANIS
6.
COUPLING PLATE
8.
_
9.
_
11.
Nozzle and Holder
8-97211-280-0
12.
Open Pre:MPa(Kqf/cm2)
18.1{185}
15.
NOZZLE SET
Cross reference number
BOSCH
9 400 611 503
9400611503
ZEXEL
101492-0991
1014920991
ISUZU
8972142952
8972142952
Zexel num
Bosch num
Firm num
Name
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
105780-8140
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
Outer diameter - inner diameter - length (mm) mm 6-2-600
Overflow valve
131424-0820
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
157
157
157
Tester oil delivery pressure
kgf/cm2
1.6
1.6
1.6
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
2.6
2.55
2.65
Beginning of injection position
Drive side NO.1
Drive 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
A
Rack position
8.4
Pump speed
r/min
950
950
950
Average injection quantity
mm3/st.
54
53
55
Max. variation between cylinders
%
0
-2.5
2.5
Basic
*
Fixing the lever
*
Injection quantity adjustment_02
Adjusting point
-
Rack position
6.8+-0.5
Pump speed
r/min
500
500
500
Average injection quantity
mm3/st.
11.5
9.5
13.5
Max. variation between cylinders
%
0
-15
15
Fixing the rack
*
Remarks
Adjust only variation between cylinders; adjust governor according to governor specifications.
Adjust only variation between cylinders; adjust governor according to governor specifications.
Test data Ex:
Governor adjustment

N:Pump speed
R:Rack position (mm)
(1)Target notch: K
(2)Tolerance for racks not indicated: +-0.05mm.
(3)Set idle sub-spring
(4)Main spring setting
(5)Rack difference from N = N1
----------
K=10 N1=700r/min
----------
----------
K=10 N1=700r/min
----------
Speed control lever angle

F:Full speed
I:Idle
S:Stop
----------
----------
a=0deg+-5deg b=16deg+-5deg c=35deg+-3deg
----------
----------
a=0deg+-5deg b=16deg+-5deg c=35deg+-3deg
Stop lever angle

N:Pump normal
S:Stop the pump.
(1)Normal
----------
----------
a=2.5deg+-5deg b=53deg+-5deg
----------
----------
a=2.5deg+-5deg b=53deg+-5deg
Timing setting

(1)Pump vertical direction
(2)Position of gear mark 'W' at No 1 cylinder's beginning of injection
(3)B.T.D.C.: aa
(4)-
----------
aa=12deg
----------
a=(210deg)
----------
aa=12deg
----------
a=(210deg)
Information:
1. Disconnect air line (1) at fitting. Remove two bolts (2). Pull up and toward the front of the engine to remove the bolt of the fuel ratio from the groove (slot) in the collar for the governor. Remove fuel ratio control (3). Remove gasket from fuel ratio control.2. Install a new gasket on fuel ratio control. Install fuel ratio control (3). Make sure bolt engages with stop collar in governor control.3. Install two bolts (2). Connect air line (1) at fitting.4. Make sure the fuel ratio control is in correct adjustment. See Systems Operation Testing & Adjusting Manual for this procedure.5. Install a new governor seal.Disassemble Fuel Ratio Control
Start By:a. remove fuel ratio control 1. Remove two bolts (1) and the housing (2). 2. Remove valve assembly (3).3. Remove seal (4) and O-ring seal from valve.4. Remove the retainer (5) and two springs (6). 5. Remove three bolts (9) and cover (10).6. Remove valve (7), diaphragm (8), retainer and spring. 7. Remove pin (12) from valve (7).8. Remove cover (11) from the valve.9. Remove the seal from the cover (11).Assemble Fuel Ratio Control
1. Put clean engine oil on lip of seal. Install the seal (1) in cover (2). Install seal so lip of seal is toward the inside of the cover. 2. Install the valve (3) into cover (2).3. Install the pin that holds cover on valve. 4. Install spring (7) and the retainer (6) in cover (8).5. Install diaphragm (5) on the valve assembly (4) and in the cover. 6. Install cover and three bolts (11) that hold covers together.7. Put clean engine oil on seal and ring seal. Install the seals (10) on valve.8. Install the two springs (13), retainer and valve assembly (12).9. Install housing (9) and two bolts.
Correct adjustment must be made to fuel ratio control before installation. See Systems Operation Testing & Adjusting for this procedure.
End By:a. install fuel ratio control
Start By:a. remove fuel ratio control 1. Remove two bolts (1) and the housing (2). 2. Remove valve assembly (3).3. Remove seal (4) and O-ring seal from valve.4. Remove the retainer (5) and two springs (6). 5. Remove three bolts (9) and cover (10).6. Remove valve (7), diaphragm (8), retainer and spring. 7. Remove pin (12) from valve (7).8. Remove cover (11) from the valve.9. Remove the seal from the cover (11).Assemble Fuel Ratio Control
1. Put clean engine oil on lip of seal. Install the seal (1) in cover (2). Install seal so lip of seal is toward the inside of the cover. 2. Install the valve (3) into cover (2).3. Install the pin that holds cover on valve. 4. Install spring (7) and the retainer (6) in cover (8).5. Install diaphragm (5) on the valve assembly (4) and in the cover. 6. Install cover and three bolts (11) that hold covers together.7. Put clean engine oil on seal and ring seal. Install the seals (10) on valve.8. Install the two springs (13), retainer and valve assembly (12).9. Install housing (9) and two bolts.
Correct adjustment must be made to fuel ratio control before installation. See Systems Operation Testing & Adjusting for this procedure.
End By:a. install fuel ratio control