Information injection-pump assembly
ZEXEL
101492-0800
1014920800
ISUZU
8971385890
8971385890
Rating:
Cross reference number
ZEXEL
101492-0800
1014920800
ISUZU
8971385890
8971385890
Zexel num
Bosch num
Firm num
Name
101492-0800
8971385890 ISUZU
INJECTION-PUMP ASSEMBLY
4BC2 * K
4BC2 * K
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
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
Right R
Injection timing adjustment
Direction of rotation (viewed from drive side)
Right R
Right R
Injection order
1-3-4-2
Pre-stroke
mm
3.4
3.35
3.45
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
9
Pump speed
r/min
1100
1100
1100
Average injection quantity
mm3/st.
45.6
44.6
46.6
Max. variation between cylinders
%
0
-2
2
Basic
*
Fixing the lever
*
Injection quantity adjustment_02
Adjusting point
-
Rack position
9+-0.5
Pump speed
r/min
325
325
325
Average injection quantity
mm3/st.
12
10.5
13.5
Max. variation between cylinders
%
0
-14
14
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
(6)Rack difference between N = N2 and N = N3
----------
K=14 N1=1100r/min N2=1100r/min N3=500r/min
----------
----------
K=14 N1=1100r/min N2=1100r/min N3=500r/min
----------
Speed control lever angle
F:Full speed
I:Idle
S:Stop
----------
----------
a=86deg+-5deg b=40deg+-3deg c=31deg+-5deg
----------
----------
a=86deg+-5deg b=40deg+-3deg c=31deg+-5deg
Stop lever angle
N:Pump normal
S:Stop the pump.
----------
----------
a=19deg+-5deg b=53deg+-5deg
----------
----------
a=19deg+-5deg b=53deg+-5deg
Timing setting
(1)Pump vertical direction
(2)Position of gear mark 'CC' at No 1 cylinder's beginning of injection
(3)B.T.D.C.: aa
(4)-
----------
aa=18deg
----------
a=(90deg)
----------
aa=18deg
----------
a=(90deg)
Information:
1. Remove plug (1) from the fuel injection pump housing.2. Use Tool (D) to loosen nut (2) for the fuel injection pump to be removed. Disconnect the fuel injection line nuts, and remove the felt washer. 3. Install Tool (A) in the fuel pump housing as shown with the square end down. Use a small amount of hand force to push down on Tool (A) while the control lever is moved forward to the "FUEL ON" position. Rack travel will stop in the center (zero) position. Hold a light forward force on the governor control lever to keep the fuel racks in the center (zero) position.4. Use Tool (B) to remove bushing (3) from the fuel injection pump housing. 5. Remove bushing (3) and O-ring seal (4).
When injection pumps, spacers and lifters are removed from the injection pump housing, keep the parts of each pump together so they can be installed in their original location.
6. Use Tool (C) to remove fuel injection pump (5). 7. Remove spacer (6) from the fuel injection pump housing. Make a note of the position from which each spacer was removed so each spacer can be installed in its original position.
Be careful when the fuel injection pumps are disassembled. Do not damage the surfaces of the plungers, barrels and bonnets. Any scratches will cause leakage inside the fuel injection pump. The plunger and barrel for each pump are made as a set. Do not put the plunger of one pump in the barrel of another pump. The check assemblies are made as a set. Do not mix the parts of the different check assemblies. Do not remove or make any adjustments of the gear segment on the plunger. It has been preset at the factory. If one part has wear, install a complete new pump assembly. Be careful when the plunger is put into the bore of the barrel.
8. Disassemble the fuel injection pump as follows: Remove ring (7). Separate bonnet (10) from barrel (9). Remove the spring and the check assembly from the bonnet. Remove plunger (8), the washer and spring from barrel (9).Install Fuel Injection Pumps
1. Inspect all parts for wear or damage. The plunger and barrel are serviced only as an assembly. 2. Put clean diesel fuel on plunger (1). Put plunger (1), washer (6) and spring (2) in position on barrel (3).3. Put check valve assembly (7) and spring (8) in bonnet (9). Connect bonnet (9) and barrel (3) together with ring (4). 4. Put spacer (10) into position in the pump housing bore. Be sure the correct spacer is with each pump. 5. Note the location of dowels (11) and (12) in the fuel injection pump housing. These dowels are for alignment of the fuel injection pump. 6. Slot (13) in gear segment (5) must align with dowel (11).7. Groove (14) must engage with dowel (12). 8. Use Tool (A) to put the fuel racks in the center (zero) position. See Remove Fuel Injection Pumps.9. Use Tool
When injection pumps, spacers and lifters are removed from the injection pump housing, keep the parts of each pump together so they can be installed in their original location.
6. Use Tool (C) to remove fuel injection pump (5). 7. Remove spacer (6) from the fuel injection pump housing. Make a note of the position from which each spacer was removed so each spacer can be installed in its original position.
Be careful when the fuel injection pumps are disassembled. Do not damage the surfaces of the plungers, barrels and bonnets. Any scratches will cause leakage inside the fuel injection pump. The plunger and barrel for each pump are made as a set. Do not put the plunger of one pump in the barrel of another pump. The check assemblies are made as a set. Do not mix the parts of the different check assemblies. Do not remove or make any adjustments of the gear segment on the plunger. It has been preset at the factory. If one part has wear, install a complete new pump assembly. Be careful when the plunger is put into the bore of the barrel.
8. Disassemble the fuel injection pump as follows: Remove ring (7). Separate bonnet (10) from barrel (9). Remove the spring and the check assembly from the bonnet. Remove plunger (8), the washer and spring from barrel (9).Install Fuel Injection Pumps
1. Inspect all parts for wear or damage. The plunger and barrel are serviced only as an assembly. 2. Put clean diesel fuel on plunger (1). Put plunger (1), washer (6) and spring (2) in position on barrel (3).3. Put check valve assembly (7) and spring (8) in bonnet (9). Connect bonnet (9) and barrel (3) together with ring (4). 4. Put spacer (10) into position in the pump housing bore. Be sure the correct spacer is with each pump. 5. Note the location of dowels (11) and (12) in the fuel injection pump housing. These dowels are for alignment of the fuel injection pump. 6. Slot (13) in gear segment (5) must align with dowel (11).7. Groove (14) must engage with dowel (12). 8. Use Tool (A) to put the fuel racks in the center (zero) position. See Remove Fuel Injection Pumps.9. Use Tool
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Isuzu
101492-0800
8971385890
INJECTION-PUMP ASSEMBLY
4BC2
4BC2