Information injection-pump assembly
ZEXEL
104302-3920
1043023920
ISUZU
5156005280
5156005280
Rating:
Service parts 104302-3920 INJECTION-PUMP ASSEMBLY:
1.
_
2.
FUEL INJECTION PUMP
3.
GOVERNOR
4.
SUPPLY PUMP
5.
AUTOM. ADVANCE MECHANIS
6.
COUPLING PLATE
7.
COUPLING PLATE
8.
_
9.
_
11.
Nozzle and Holder
5-15300-039-1
12.
Open Pre:MPa(Kqf/cm2)
11.8{120}
15.
NOZZLE SET
Include in #1:
104302-3920
as INJECTION-PUMP ASSEMBLY
Cross reference number
ZEXEL
104302-3920
1043023920
ISUZU
5156005280
5156005280
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
105000-1650
Bosch type code
DN0SD2110
Nozzle holder
105081-3140
Opening pressure
MPa
11.8
Opening pressure
kgf/cm2
120
Injection pipe
Outer diameter - inner diameter - length (mm) mm 6-2-600
Outer diameter - inner diameter - length (mm) mm 6-2-600
Overflow valve
132424-0620
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
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
1-2
Pre-stroke
mm
2.1
2.05
2.15
Beginning of injection position
Drive side NO.1
Drive side NO.1
Difference between angles 1
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
8.6
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
38.8
37.8
39.8
Max. variation between cylinders
%
0
-2.5
2.5
Basic
*
Fixing the lever
*
Injection quantity adjustment_02
Adjusting point
B
Rack position
5.2+-0.5
Pump speed
r/min
350
350
350
Average injection quantity
mm3/st.
8
7
9
Max. variation between cylinders
%
0
-14
14
Fixing the rack
*
Test data Ex:
Governor adjustment
N:Pump speed
R:Rack position (mm)
(1)Torque control stroke
----------
----------
----------
----------
Speed control lever angle
F:Full speed
I:Idle
S:Stop
(1)Set at point B-aa using the idle set spring.
----------
aa=0.5mm
----------
a=20deg+-2deg b=32.5deg+-6deg c=45deg+-6deg
----------
aa=0.5mm
----------
a=20deg+-2deg b=32.5deg+-6deg c=45deg+-6deg
Information:
PRESSURIZING THE SYSTEMIf the pressure isn't maintained, overflow loss can occur as cooling system temperature rises. Do not remove the cap while the system is at operating temperature. Check coolant level only when cold.If the system does not hold pressure, find the leak.Carefully inspect the radiator cap, seals, sealing surfaces and the top tank filler neck surface for damage.
RADIATOR CAPTesting The Temperature Gauge
Remember that boiling point temperature and pressure go hand-in-hand and neither one can be tested logically without considering the other. For example, the effect of pressurization and altitude on the boiling point of water is shown in the chart. If overheating and loss of coolant is a problem, a pressure loss in the system could be the cause. If an overheating condition is indicated on the temperature gauge and loss of coolant is not evident, check the accuracy of the temperature gauge. Make this check by installing a thermometer with a suitable bushing into the cylinder head.Start the engine. Partially cover the radiator to reduce air flow and cooling. The reading on the instrument panel gauge should agree with the reading on the thermometer.
Use CAUTION when working around moving parts with the engine running.
CHECKING COOLANT TEMPERATURE WITH THERMOMETERTemperature Regulators
There is a temperature regulator located at the front of each cylinder head.The opening temperature of the regulator (bench test in antmospheric pressure) should be 180 2°F (82 2°C). The regulator should be fully open at approximately 197°F (92°C). 1. Remove the regulator from the housing.2. Submerge the regulator and a thermometer in a pan of water as shown.3. Apply heat to the pan and stir the water to maintain uniformity.4. Observe the opening temperature of the regulator.If the regulator does not operate correctly, install a new one. Cooling System Hoses
Inspect all coolant hoses annually and replace if they show signs of cracking or leaking. Periodically replace all hoses, as it is many times difficult to determine the condition of a water hose by visual inspection and feel. Coolant hoses are expendable items and periodic replacement is considered good maintenance practice.Air, Gases And Steam In The System
Incomplete or improper filling is a major cause of air in the cooling system. Also, leaks in various components such as the aftercooler, and hoses allow air to enter the cooling system, especially on the inlet side of the water pump.Air in the system produces foaming or aeration and affects water pump performance. The air bubbles insulate various parts of the engine from the coolant, and hot spots form. As the air bubbles circulate or break up, coolant contacts the hot surfaces, creating steam. The steam pockets have basically the same effect as air bubbles, accelerating the formation of more steam. Consequently, coolant discharges through the overflow.Exhaust gas leakage into the system causes similar conditions. Exhaust gas can enter through internal cracks or defective cylinder head gaskets.Most of the causes can be checked by a visual inspection, while others require disassembly or a simple test.Air in the cooling system is