Information injection-pump assembly
BOSCH
9 400 610 677
9400610677
ZEXEL
101603-8821
1016038821
ISUZU
8943958121
8943958121

Rating:
Service parts 101603-8821 INJECTION-PUMP ASSEMBLY:
1.
_
7.
COUPLING PLATE
8.
_
9.
_
11.
Nozzle and Holder
8-94395-511-2
12.
Open Pre:MPa(Kqf/cm2)
18.1{185}
15.
NOZZLE SET
Cross reference number
BOSCH
9 400 610 677
9400610677
ZEXEL
101603-8821
1016038821
ISUZU
8943958121
8943958121
Zexel num
Bosch num
Firm num
Name
101603-8821
9 400 610 677
8943958121 ISUZU
INJECTION-PUMP ASSEMBLY
6HH1-N K 14BE INJECTION PUMP ASSY PE6A PE
6HH1-N K 14BE INJECTION PUMP ASSY PE6A PE
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
131424-4920
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
1-5-3-6-
2-4
Pre-stroke
mm
3.4
3.35
3.45
Beginning of injection position
Governor side NO.1
Governor side NO.1
Difference between angles 1
Cal 1-5 deg. 60 59.5 60.5
Cal 1-5 deg. 60 59.5 60.5
Difference between angles 2
Cal 1-3 deg. 120 119.5 120.5
Cal 1-3 deg. 120 119.5 120.5
Difference between angles 3
Cal 1-6 deg. 180 179.5 180.5
Cal 1-6 deg. 180 179.5 180.5
Difference between angles 4
Cyl.1-2 deg. 240 239.5 240.5
Cyl.1-2 deg. 240 239.5 240.5
Difference between angles 5
Cal 1-4 deg. 300 299.5 300.5
Cal 1-4 deg. 300 299.5 300.5
Injection quantity adjustment
Adjusting point
-
Rack position
10.5
Pump speed
r/min
850
850
850
Average injection quantity
mm3/st.
51.5
49.9
53.1
Max. variation between cylinders
%
0
-2.5
2.5
Basic
*
Fixing the rack
*
Standard for adjustment of the maximum variation between cylinders
*
Injection quantity adjustment_02
Adjusting point
-
Rack position
9.6+-0.5
Pump speed
r/min
275
275
275
Average injection quantity
mm3/st.
9.4
8.1
10.7
Max. variation between cylinders
%
0
-14
14
Fixing the rack
*
Standard for adjustment of the maximum variation between cylinders
*
Remarks
Adjust only variation between cylinders; adjust governor according to governor specifications.
Adjust only variation between cylinders; adjust governor according to governor specifications.
Injection quantity adjustment_03
Adjusting point
A
Rack position
R1(10.5)
Pump speed
r/min
850
850
850
Average injection quantity
mm3/st.
51.5
50.5
52.5
Basic
*
Fixing the lever
*
Injection quantity adjustment_04
Adjusting point
B
Rack position
R1+0.1
Pump speed
r/min
1400
1400
1400
Average injection quantity
mm3/st.
63.5
60.3
66.7
Fixing the lever
*
Injection quantity adjustment_05
Adjusting point
C
Rack position
R1+0.45
Pump speed
r/min
600
600
600
Average injection quantity
mm3/st.
48.8
44.8
52.8
Fixing the lever
*
Injection quantity adjustment_06
Adjusting point
I
Rack position
-
Pump speed
r/min
150
150
150
Average injection quantity
mm3/st.
130
130
138
Fixing the lever
*
Rack limit
*
Timer adjustment
Pump speed
r/min
550--
Advance angle
deg.
0
0
0
Remarks
Start
Start
Timer adjustment_02
Pump speed
r/min
500
Advance angle
deg.
0.5
Timer adjustment_03
Pump speed
r/min
1000
Advance angle
deg.
3
2.5
3.5
Remarks
Finish
Finish
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)RACK LIMIT
----------
T1=K58
----------
----------
T1=K58
----------
Speed control lever angle

F:Full speed
I:Idle
(1)Use the pin at R = aa
(2)Stopper bolt setting
----------
aa=35mm
----------
a=11deg+-5deg b=37.5deg+-3deg
----------
aa=35mm
----------
a=11deg+-5deg b=37.5deg+-3deg
Stop lever angle

N:Pump normal
S:Stop the pump.
(1)Use the pin at R = aa
----------
aa=45mm
----------
a=12.5deg+-5deg b=40deg+-5deg
----------
aa=45mm
----------
a=12.5deg+-5deg b=40deg+-5deg
0000001501 ACS

(A) Housing
(B) Snap ring
(C) adjusting screw
(D) Set screw
(E): Push rod
(F) Spacer
1. Adjustment of the aneroid compensator
(1)Adjust with the (D) set screw so that the clearance between the (A) housing and (B) snap ring is L1.
(2)Select the push rod (E) so that the distance from the end surface of the (F) spacer becomes L2.
(3)(C) Turn the screw to adjust the beginning of aneroid compensator operation.
2. Adjustment when mounting the governor.
(1)Set the speed of the pump to N1 r/min and fix the control lever at the full set position.
(2)Adjust using screw C to obtain the performance shown in the graph above.
(3)After final adjustment, confirm that the gap between housing (A) and snapring (B) is L3.
----------
N1=850r/min L1=1.4~1.7mm L2=0.5+-0.5mm L3=(0.1~0.5)mm
----------
Ra=R1(10.5)mm Rb=R1-0.9mm Pa=89.8+-2.7kPa(674+-20mmHg) Pb=70.1+-0.7kPa(526+-5 mmHg) Q1=51.5+-1cm3/1000st Q2=(32.7)+-1.6cm3/1000st
----------
N1=850r/min L1=1.4~1.7mm L2=0.5+-0.5mm L3=(0.1~0.5)mm
----------
Ra=R1(10.5)mm Rb=R1-0.9mm Pa=89.8+-2.7kPa(674+-20mmHg) Pb=70.1+-0.7kPa(526+-5 mmHg) Q1=51.5+-1cm3/1000st Q2=(32.7)+-1.6cm3/1000st
Timing setting

(1)Pump vertical direction
(2)Position of timer's threaded hole at No 1 cylinder's beginning of injection
(3)B.T.D.C.: aa
(4)-
----------
aa=14deg
----------
a=(160deg)
----------
aa=14deg
----------
a=(160deg)
Information:
Use extreme care in keeping the work area and tools clean. Handle all parts with care to avoid any damage.
1. Place the nozzle in the holding tool (2) and secure the tool in a vise. Do not clamp any part of the nozzle body directly in the vise.
LOOSENING LOCKNUT
1. Locknut. 2. 8S2250 Nozzle Holding Tool.2. Loosen lift adjusting screw locknut (1). Loosen the lift adjusting screw two or three turns. Loosen pressure screw (3).
LOOSENING PRESSURE SCREW
3. Pressure screw.
PRESSURE SCREW ASSEMBLY REMOVED3. Holding the nozzle in one hand, invert it and back out the pressure screw allowing the spring, spring seat and shims to fall into your hand. The valve may slide out, by its own weight, and should be handled carefully by its stem.4. If the valve does not fall out, remove it with retractor (4). To prevent bending the valve, bottom it in the body with the retractor. Push down on the retractor body to mount the collet. Turn the knurled nut counterclockwise to secure the collet and withdraw the valve.
REMOVING VALVE
4. 5P958 Valve Retractor.5. Place the parts in solvent to loosen carbon and deposits of foreign material. Do not soak the body assembly in solvent for over 1 to 2 hours. The solvent can damage the epoxy bond used to secure the body assembly components together.Assemble Fuel Injection Nozzle (9L7883 Nozzles)
Before assembly, wash all parts thoroughly. Flush the body to remove any debris or lapping compound. Assemble while all parts are wet with clean fuel.1. Handle valve (1) by its shank and slide it partially into the body.
ASSEMBLENG NOZZLE
1. Valve. 2. Spring seat. 3. Spring. 4. Shims. 5. Pressure screw. 6. Locknut. 7. Lift adjusting screw.2. Assemble lift adjusting screw (7) into pressure screw (5) two to three turns and install locknut (6), do not tighten the locknut. Put shims (4), spring (3), and spring seat (2) on the lift adjusting screw. Put the thickest shim (4) against the screw.3. Tilt the nozzle body and with spring seat (2) in contact with the top of valve (1), push the valve and spring components into the body and tighten the pressure screw hand tight.4. Put the nozzle in the 8S2250 Nozzle Holding Tool. Put the holding tool in a vise and tighten the pressure screw (5) to 75 to 80 lb. in. (86.5 to 92.2 cm.kg).
TIGHTENING PRESSURE SCREW To check or adjust the opening pressure and the valve lift see the TESTING AND ADJUSTING section of the Service Manual.5. To tighten the locknut, hold lift adjusting screw (7) with a screwdriver and tighten the locknut (6) just enough so lift adjusting screw (7) will not turn.
TIGHTENING LOCKNUT6. Use a torque wrench and tighten the locknut to 35 to 40 lb. in. (40.4 to 46.1 cm.kg).
TIGHTENING LOCKNUTService And Inspect Fuel Injection Nozzle (9L7883 Nozzles)
1. Use the brush (4) to clean the tip and body exterior.2. Secure the 8S2247 Cleaning Wire [.008 to .009 in. (0.20 to 0.23 mm) dia.] in pin vise (1) with 1/32 in. (0.79 mm)
Have questions with 101603-8821?
Group cross 101603-8821 ZEXEL
Isuzu
101603-8821
9 400 610 677
8943958121
INJECTION-PUMP ASSEMBLY
6HH1-N
6HH1-N