Information injection-pump assembly
ZEXEL
104740-1580
1047401580
ISUZU
8944696810
8944696810
Rating:
Cross reference number
ZEXEL
104740-1580
1047401580
ISUZU
8944696810
8944696810
Zexel num
Bosch num
Firm num
Name
Calibration Data:
Adjustment conditions
Test oil
1404 Test oil ISO4113orSAEJ967d
1404 Test oil ISO4113orSAEJ967d
Test oil temperature
degC
45
45
50
Nozzle
105000-2010
Bosch type code
NP-DN12SD12TT
Nozzle holder
105780-2080
Opening pressure
MPa
14.7
14.7
15.19
Opening pressure
kgf/cm2
150
150
155
Injection pipe
Inside diameter - outside diameter - length (mm) mm 2-6-840
Inside diameter - outside diameter - length (mm) mm 2-6-840
Transfer pump pressure
kPa
20
20
20
Transfer pump pressure
kgf/cm2
0.2
0.2
0.2
Direction of rotation (viewed from drive side)
Right R
Right R
Injection timing adjustment
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
50.9
50.4
51.4
Difference in delivery
mm3/st.
3.5
Basic
*
Oil temperature
degC
50
48
52
Injection timing adjustment_02
Pump speed
r/min
600
600
600
Average injection quantity
mm3/st.
49.5
48
51
Oil temperature
degC
50
48
52
Injection timing adjustment_03
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
50.9
49.9
51.9
Difference in delivery
mm3/st.
3.5
Basic
*
Oil temperature
degC
50
48
52
Injection timing adjustment_04
Pump speed
r/min
2200
2200
2200
Average injection quantity
mm3/st.
42.7
41.1
44.3
Oil temperature
degC
52
50
54
Injection quantity adjustment
Pump speed
r/min
2500
2500
2500
Average injection quantity
mm3/st.
24.9
21.9
27.9
Difference in delivery
mm3/st.
4.5
Basic
*
Oil temperature
degC
55
52
58
Injection quantity adjustment_02
Pump speed
r/min
2500
2500
2500
Average injection quantity
mm3/st.
24.9
21.9
27.9
Difference in delivery
mm3/st.
4.5
Oil temperature
degC
55
52
58
Injection quantity adjustment_03
Pump speed
r/min
2850
2850
2850
Average injection quantity
mm3/st.
5
Oil temperature
degC
55
52
58
Governor adjustment
Pump speed
r/min
350
350
350
Average injection quantity
mm3/st.
10.3
8.3
12.3
Difference in delivery
mm3/st.
2
Basic
*
Oil temperature
degC
48
46
50
Governor adjustment_02
Pump speed
r/min
350
350
350
Average injection quantity
mm3/st.
10.3
8.3
12.3
Difference in delivery
mm3/st.
2
Oil temperature
degC
48
46
50
Timer adjustment
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
50
50
70
Basic
*
Oil temperature
degC
48
46
50
Remarks
Full
Full
Timer adjustment_02
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
50
50
70
Oil temperature
degC
48
46
50
Speed control lever angle
Pump speed
r/min
350
350
350
Average injection quantity
mm3/st.
0
0
0
Oil temperature
degC
48
46
50
Remarks
Magnet OFF at idling position
Magnet OFF at idling position
0000000901
Pump speed
r/min
1250
1250
1250
Overflow quantity
cm3/min
420
290
550
Oil temperature
degC
50
48
52
Stop lever angle
Pump speed
r/min
1250
1250
1250
Pressure
kPa
451
431
471
Pressure
kgf/cm2
4.6
4.4
4.8
Basic
*
Oil temperature
degC
50
48
52
Stop lever angle_02
Pump speed
r/min
1250
1250
1250
Pressure
kPa
451
431
471
Pressure
kgf/cm2
4.6
4.4
4.8
Basic
*
Oil temperature
degC
50
48
52
0000001101
Pump speed
r/min
1250
1250
1250
Timer stroke
mm
1.7
1.5
1.9
Basic
*
Oil temperature
degC
50
48
52
_02
Pump speed
r/min
930
830
1030
Timer stroke
mm
0.5
0.5
0.5
Oil temperature
degC
50
48
52
_03
Pump speed
r/min
1250
1250
1250
Timer stroke
mm
1.7
1.5
1.9
Basic
*
Oil temperature
degC
50
48
52
_04
Pump speed
r/min
2000
2000
2000
Timer stroke
mm
4.6
4.2
5
Oil temperature
degC
50
48
52
_05
Pump speed
r/min
2300
2300
2300
Timer stroke
mm
5.7
5.4
6.1
Oil temperature
degC
52
50
54
0000001201
Max. applied voltage
V
8
8
8
Test voltage
V
13
12
14
0000001401
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
28.9
28.4
29.4
Timer stroke TA
mm
1.3
1.3
1.3
Timer stroke variation dT
mm
0.4
0.2
0.6
Basic
*
Oil temperature
degC
50
48
52
_02
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
28.9
27.9
29.9
Timer stroke variation dT
mm
0.4
0.1
0.7
Basic
*
Oil temperature
degC
50
48
52
_03
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
18
17
19
Timer stroke variation dT
mm
0.8
0.3
1.3
Oil temperature
degC
50
48
52
Timing setting
K dimension
mm
3.3
3.2
3.4
KF dimension
mm
5.8
5.7
5.9
MS dimension
mm
0.9
0.8
1
Control lever angle alpha
deg.
-2
-6
2
Control lever angle beta
deg.
42
37
47
Information:
(Engine Crankshaft Turns Freely) (Exhaust Smoke Can Be Seen While Starting)
Recommended Procedure
1. Cold Outside Temperatures ... It may be necessary to use starting aids, or to heat engine oil or coolant at temperatures below 10°C (50°F).2. Air in Fuel System ... With air in the fuel system the engine will normally be difficult to start, run rough and release a large amount of white smoke. To remove the air from the fuel system, open the manual bleed valve on the fuel injection pump housing. Operate the priming pump until the flow of fuel from the manual bleed valve is free of air. Close the manual bleed valve and fasten the fuel priming pump. Start the engine. If the engine still does not run smooth or releases a large amount of white smoke, loosen the fuel line nuts one at a time at the cylinder heads, and permit the fuel to come out until it is free of air. Tighten the fuel line nuts. If air is not removed in this way, put 35 kPa (5 psi) of air pressure to the fuel tank.
Do not use more than 55 kPa (8 psi) of air pressure in the fuel tank or damage to the tank may result.
Check for leakage at the connections between the fuel tank and the fuel transfer pump. If leaks are found, tighten the connections or replace the lines. If there are no visual leaks, remove the fuel supply line from the tank and connect it to an outside fuel supply. If this corrects the problem, the suction line (standpipe) inside the fuel tank has a leak.3. Low Quality Fuel ... Remove a small amount of fuel from the tank and check for water in the fuel. If there is water in the fuel, remove fuel from the tank until it is free of water and fill with a good quality fuel. Change the fuel filter and "prime" (remove the air and/or low quality fuel from the fuel system) the fuel system with the fuel priming pump. If there is no water in the fuel, prime and start the engine by using an outside source of fuel. If engine starts correctly using different fuel, remove all fuel from the tank and fill with good quality fuel. Prime the fuel system if necessary.4. Low Fuel Pressure ... Change the fuel filter. If the pressure is still low, check the bypass valve in the fuel transfer pump. Debris in the system can make the valve become stationary in the open position.5. Fuel Injection Timing Not Correct ... Check and make necessary adjustments as per Testing and Adjusting section of this Service Manual.6. Valve Adjustment Not Correct ... Check and make necessary adjustments as per Testing and Adjusting section of this Service Manual. Intake valve clearance is 0.38 mm (.015 in) and exhaust valve clearance is 0.64 mm (.025 in).7. Bad Fuel Nozzle(s) ... Remove and test the fuel nozzles.8. Low Compression ... See Misfiring and Running Rough.Exhaust Smoke
Recommended Procedure
1. Cold Outside Temperatures ... It may be necessary to use starting aids, or to heat engine oil or coolant at temperatures below 10°C (50°F).2. Air in Fuel System ... With air in the fuel system the engine will normally be difficult to start, run rough and release a large amount of white smoke. To remove the air from the fuel system, open the manual bleed valve on the fuel injection pump housing. Operate the priming pump until the flow of fuel from the manual bleed valve is free of air. Close the manual bleed valve and fasten the fuel priming pump. Start the engine. If the engine still does not run smooth or releases a large amount of white smoke, loosen the fuel line nuts one at a time at the cylinder heads, and permit the fuel to come out until it is free of air. Tighten the fuel line nuts. If air is not removed in this way, put 35 kPa (5 psi) of air pressure to the fuel tank.
Do not use more than 55 kPa (8 psi) of air pressure in the fuel tank or damage to the tank may result.
Check for leakage at the connections between the fuel tank and the fuel transfer pump. If leaks are found, tighten the connections or replace the lines. If there are no visual leaks, remove the fuel supply line from the tank and connect it to an outside fuel supply. If this corrects the problem, the suction line (standpipe) inside the fuel tank has a leak.3. Low Quality Fuel ... Remove a small amount of fuel from the tank and check for water in the fuel. If there is water in the fuel, remove fuel from the tank until it is free of water and fill with a good quality fuel. Change the fuel filter and "prime" (remove the air and/or low quality fuel from the fuel system) the fuel system with the fuel priming pump. If there is no water in the fuel, prime and start the engine by using an outside source of fuel. If engine starts correctly using different fuel, remove all fuel from the tank and fill with good quality fuel. Prime the fuel system if necessary.4. Low Fuel Pressure ... Change the fuel filter. If the pressure is still low, check the bypass valve in the fuel transfer pump. Debris in the system can make the valve become stationary in the open position.5. Fuel Injection Timing Not Correct ... Check and make necessary adjustments as per Testing and Adjusting section of this Service Manual.6. Valve Adjustment Not Correct ... Check and make necessary adjustments as per Testing and Adjusting section of this Service Manual. Intake valve clearance is 0.38 mm (.015 in) and exhaust valve clearance is 0.64 mm (.025 in).7. Bad Fuel Nozzle(s) ... Remove and test the fuel nozzles.8. Low Compression ... See Misfiring and Running Rough.Exhaust Smoke