Information injection-pump assembly
ZEXEL
104749-2120
1047492120
NISSAN
16700K4505
16700k4505
Rating:
Cross reference number
ZEXEL
104749-2120
1047492120
NISSAN
16700K4505
16700k4505
Zexel num
Bosch num
Firm num
Name
104749-2120
16700K4505 NISSAN
INJECTION-PUMP ASSEMBLY
LD20 * K
LD20 * K
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
600
600
600
Average injection quantity
mm3/st.
33.2
32.7
33.7
Difference in delivery
mm3/st.
2.5
Basic
*
Injection timing adjustment_02
Pump speed
r/min
600
600
600
Average injection quantity
mm3/st.
33.2
32.2
34.2
Injection timing adjustment_03
Pump speed
r/min
900
900
900
Average injection quantity
mm3/st.
27
23.5
30.5
Injection timing adjustment_04
Pump speed
r/min
970
970
970
Average injection quantity
mm3/st.
9.6
6.1
13.1
Injection quantity adjustment
Pump speed
r/min
970
970
970
Average injection quantity
mm3/st.
9.6
6.6
12.6
Basic
*
Injection quantity adjustment_02
Pump speed
r/min
1000
1000
1000
Average injection quantity
mm3/st.
6
Governor adjustment
Pump speed
r/min
325
325
325
Average injection quantity
mm3/st.
8.2
6.7
9.7
Difference in delivery
mm3/st.
3
Basic
*
Governor adjustment_02
Pump speed
r/min
325
325
325
Average injection quantity
mm3/st.
8.2
6.2
10.2
Governor adjustment_03
Pump speed
r/min
500
500
500
Average injection quantity
mm3/st.
4
Timer adjustment
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
52
52
Basic
*
Speed control lever angle
Pump speed
r/min
325
325
325
Average injection quantity
mm3/st.
0
0
0
Remarks
Magnet OFF
Magnet OFF
0000000901
Pump speed
r/min
900
900
900
Overflow quantity
cm3/min
342
210
474
Stop lever angle
Pump speed
r/min
900
900
900
Pressure
kPa
313.5
284
343
Pressure
kgf/cm2
3.2
2.9
3.5
Basic
*
Stop lever angle_02
Pump speed
r/min
600
600
600
Pressure
kPa
245
206
284
Pressure
kgf/cm2
2.5
2.1
2.9
Stop lever angle_03
Pump speed
r/min
900
900
900
Pressure
kPa
314
275
353
Pressure
kgf/cm2
3.2
2.8
3.6
0000001101
Pump speed
r/min
900
900
900
Timer stroke
mm
1.4
1.1
1.7
Basic
*
_02
Pump speed
r/min
900
900
900
Timer stroke
mm
1.4
1
1.8
0000001201
Max. applied voltage
V
8
8
8
Test voltage
V
13
12
14
Timing setting
K dimension
mm
3.3
3.2
3.4
KF dimension
mm
5.8
5.7
5.9
MS dimension
mm
1.2
1.1
1.3
Control lever angle alpha
deg.
20
16
24
Control lever angle beta
deg.
33
28
38
Information:
Illustration 2 g06542023
(T1a) Eccentric gasket
Install adjustment tool (T1) on the injector for center cylinder (2) using eccentric gasket (T1a). Install eccentric gasket (T1a) over the check valve in place of the O-ring.
Illustration 3 g06542029
(T1b) Supply fitting
(T1c) Purge hose
(T2) Inlet hose
Connect a suitable container filled with clean diesel fuel to supply fitting (T1b) using inlet hose (T2). Place a small cup under purge hose (T1c).
Illustration 4 g06536094
(1) Drive clutch side cylinder
(2) Center cylinder
(3) Alternator side cylinder
(A) TDC index mark
Rotate the engine in the direction of rotation (clockwise) until center cylinder (2) is at Top-Dead-Center (TDC) with the compression stroke. The reference mark for center cylinder (2) must be aligned with the TDC index mark (A) and the valves must be closed.
Illustration 5 g06536129
Center cylinder (2) at 11° Before-Top-Dead-Center (BTDC)
(1) Drive clutch side cylinder
(2) Center cylinder
(3) Alternator side cylinder
(A) TDC index mark
Illustration 6 g06542031
(T1c) Purge hose
Raise the fuel container above the level of the injector. Rotate the engine counterclockwise until reference mark (2) is to the left of the 11° Before-Top-Dead-Center (BTDC) mark or until fuel is observed flowing from purge hose (T1c).
Illustration 7 g06542019
(T1c) Purge hose
Rotate the engine clockwise and stop immediately when the fuel stops flowing from purge hose (T1c). The beginning of injection has been reached when the fuel stops flowing.
Illustration 8 g06536129
Center cylinder (2) rotated 11°
(1) Drive clutch side cylinder
(2) Center cylinder
(3) Alternator side cylinder
(A) TDC index mark
Observe the alignment of the reference mark for center cylinder (2) and the 11° BTDC mark.Note: If mark (2) aligns with the 11° mark, timing is correct and proceed to Step 9. If marks are not aligned, the injector timing must be adjusted. Adjust injector timing using the procedure in Step 8.
Observe the position of the reference mark for center cylinder (2) and the mark at 11° of rotation for BTDC. Note if the injector timing is early or late.Note: If the reference mark for center cylinder (2) is left of the 11° BTDC mark, injector timing is early. If the mark is to the right, injector timing is late.
Illustration 9 g06536148
(B) Jam nut
Rotate the engine to align the reference mark for center cylinder (2) and the 11° BTDC mark. Loosen jam nut (B) on the fuel injector timing adjustment screw. For late timing, proceed to Step 8b. For early timing, proceed to Step 8c
Illustration 10 g06536146
(C) Adjustment screw
Late Timing: While watching purge hose (T1c), turn adjustment screw (C) clockwise until fuel flow stops.
Early Timing: While watching purge hose (T1c), turn adjustment screw (C) counterclockwise until fuel flow starts. Then, turn adjustment screw (C) clockwise until fuel flow stops.
Hold adjustment screw (C) and tighten jam nut (B) securely. Check the injector timing by repeating Steps 5 through 7.
Remove adjustment tool (T1) and install with eccentric gasket (T1a) on the injector for drive clutch side cylinder (1). Rotate the engine 120° clockwise using the reference mark for cylinder (1). Repeat Steps 4 through 8.
Repeat Step 9 for alternator side cylinder (3).
Illustration 11 g06543249
(1) 562-0435 O-Ring Seal
Remove adjustment tool (T1) and eccentric gasket (T1a). Reinstall the fuel rail with four new
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Nissan
104749-2120
16700K4505
INJECTION-PUMP ASSEMBLY
LD20
LD20