Information injection-pump assembly
BOSCH
9 460 610 178
9460610178
ZEXEL
104748-1190
1047481190
Rating:
Components :
0. | INJECTION-PUMP ASSEMBLY | 104748-1190 |
1. | _ | |
2. | FUEL INJECTION PUMP | 104648-1120 |
3. | NUMBER PLATE | 146632-8800 |
4. | _ | |
5. | CAPSULE | 146620-0120 |
6. | ADJUSTING DEVICE | |
7. | NOZZLE AND HOLDER ASSY | 105141-2061 |
8. | Nozzle and Holder | 8-94220-084-2 |
9. | Open Pre:MPa(Kqf/cm2) | 11.8{120} |
10. | NOZZLE-HOLDER | 105071-1380 |
11. | NOZZLE | 105000-1770 |
Scheme ###:
1. | [1] | 146003-0620 | PUMP HOUSING 2K D20 L R |
1/6. | [1] | 146601-0100 | PACKING RING |
6. | [1] | 146100-0120 | SUPPLY PUMP D20 |
9. | [1] | 146103-0000 | COVER |
10. | [2] | 139104-0000 | FLAT-HEAD SCREW |
12. | [1] | 146200-0300 | DRIVE SHAFT |
13. | [1] | 146201-0000 | WOODRUFF KEY |
15. | [2] | 146202-0001 | DAMPER |
16. | [1] | 146203-0000 | TOOTHED GEAR |
17. | [1] | 146204-0000 | PLAIN WASHER |
20. | [1] | 146210-0120 | ROLLER SET MMC C=1.2 |
24. | [1] | 146303-0000 | BEARING PIN |
25. | [1] | 146304-0000 | BEARING PIN |
26. | [1] | 146305-0000 | CLAMPING BAND |
27. | [1] | 146205-0000 | SLOTTED WASHER |
29. | [1] | 146220-0120 | CAM PLATE '01'SK3255 |
30. | [1] | 146600-0800 | O-RING |
31. | [1] | 146300-0500 | PUMP PLUNGER ' 5' 5-9. |
32. | [1] | 146301-0000 | SLIDING PIECE |
33. | [1] | 146603-0700 | SHIM |
34. | [1] | 146302-0500 | COMPRESSION SPRING K=3.4 |
35. | [1] | 029998-0710 | SHIM |
35/1. | [0] | 146603-0700 | SHIM |
35/1. | [0] | 146603-0800 | SHIM |
35/1. | [0] | 146603-0900 | SHIM |
35/1. | [0] | 146603-1000 | SHIM |
35/1. | [0] | 146603-1100 | SHIM |
36. | [1] | 146600-0800 | O-RING |
37. | [1] | 146310-0000 | COVER |
38. | [2] | 139106-0000 | FLAT-HEAD SCREW |
39. | [1] | 146310-0100 | COVER |
40. | [2] | 139106-0000 | FLAT-HEAD SCREW |
43. | [1] | 146230-0000 | SHIM |
44. | [1] | 146230-0100 | PLAIN WASHER |
45. | [1] | 146231-0000 | SLOTTED WASHER |
47. | [2] | 146233-0000 | SLOTTED WASHER |
48. | [2] | 029998-0570 | SHIM |
48/1. | [2] | 146603-0000 | SHIM |
48/1. | [2] | 146603-0100 | SHIM |
48/1. | [2] | 146603-0200 | SHIM |
48/1. | [2] | 146603-0300 | SHIM |
48/1. | [2] | 146603-0400 | SHIM |
48/1. | [2] | 146603-0500 | SHIM |
48/1. | [2] | 146603-0600 | SHIM |
49. | [2] | 146234-0020 | GUIDE PIN |
50. | [1] | 146404-0420 | HYDRAULIC HEAD |
50. | [1] | 146404-0420 | HYDRAULIC HEAD |
50. | [1] | 146404-0420 | HYDRAULIC HEAD |
51. | [1] | 146600-0000 | O-RING |
52. | [1] | 029998-0300 | SHIM |
52/1. | [1] | 146420-0000 | SHIM |
52/1. | [1] | 146420-0100 | SHIM |
52/1. | [1] | 146420-0200 | SHIM |
52/1. | [1] | 146420-0300 | SHIM |
52/1. | [1] | 146420-0400 | SHIM |
52/1. | [1] | 146420-0500 | SHIM |
52/1. | [1] | 146420-0600 | SHIM |
52/1. | [1] | 146420-0700 | SHIM |
52/1. | [1] | 146420-0800 | SHIM |
52/1. | [1] | 146420-0900 | SHIM |
52/1. | [1] | 146420-1000 | SHIM |
52/1. | [1] | 146420-1100 | SHIM |
52/1. | [1] | 146420-1200 | SHIM |
52/1. | [1] | 146420-1300 | SHIM |
52/1. | [1] | 146420-1400 | SHIM |
52/1. | [1] | 146420-1500 | SHIM |
52/1. | [1] | 146420-1600 | SHIM |
52/1. | [1] | 146420-1700 | SHIM |
52/1. | [1] | 146420-1800 | SHIM |
52/1. | [1] | 146420-1900 | SHIM |
52/1. | [1] | 146420-2000 | SHIM |
52/1. | [1] | 146420-2100 | SHIM |
52/1. | [1] | 146420-2200 | SHIM |
52/1. | [1] | 146420-2300 | SHIM |
52/1. | [1] | 146420-2400 | SHIM |
52/1. | [1] | 146420-2500 | SHIM |
52/1. | [1] | 146420-2600 | SHIM |
52/1. | [1] | 146420-2700 | SHIM |
52/1. | [1] | 146420-2800 | SHIM |
52/1. | [1] | 146420-2900 | SHIM |
52/1. | [1] | 146420-3000 | SHIM |
52/1. | [1] | 146420-3100 | SHIM |
52/1. | [1] | 146420-3200 | SHIM |
52/1. | [1] | 146420-3300 | SHIM |
52/1. | [1] | 146420-3400 | SHIM |
52/1. | [1] | 146420-3500 | SHIM |
52/1. | [1] | 146420-3600 | SHIM |
52/1. | [1] | 146420-3700 | SHIM |
52/1. | [1] | 146420-3800 | SHIM |
52/1. | [1] | 146420-3900 | SHIM |
52/1. | [1] | 146420-4000 | SHIM |
52/1. | [1] | 146420-4100 | SHIM |
52/1. | [1] | 146420-4200 | SHIM |
52/1. | [1] | 146420-4300 | SHIM |
52/1. | [1] | 146420-4400 | SHIM |
52/1. | [1] | 146420-4500 | SHIM |
52/1. | [1] | 146420-4600 | SHIM |
52/1. | [1] | 146420-4700 | SHIM |
52/1. | [1] | 146420-4800 | SHIM |
52/1. | [1] | 146420-4900 | SHIM |
52/1. | [1] | 146420-5000 | SHIM |
54. | [4] | 146433-0100 | GASKET |
55. | [4] | 146430-0020 | DELIVERY-VALVE ASSEMBLY 'VE1' VR35 |
56. | [4] | 146432-0000 | COMPRESSION SPRING K=0.48 |
58. | [4] | 146440-0120 | FITTING D0.45 L=55 |
60. | [4] | 139106-0100 | FLAT-HEAD SCREW |
66. | [1] | 146600-0100 | O-RING |
67. | [1] | 146502-0220 | GOVERNOR COVER |
67/13. | [1] | 013020-6040 | UNION NUT |
67/14. | [1] | 029240-6010 | UNION NUT |
67/15. | [1] | 146526-1800 | BLEEDER SCREW |
67/16. | [1] | 146526-0200 | BLEEDER SCREW |
67/23. | [1] | 146613-1300 | BRACKET |
67/24. | [2] | 139106-0000 | FLAT-HEAD SCREW |
68. | [1] | 146510-0320 | CONTROL SHAFT R=10 S R |
69. | [1] | 139310-0200 | PLAIN WASHER |
72. | [1] | 146530-7120 | CONTROL LEVER |
72. | [1] | 146530-7120 | CONTROL LEVER |
72B. | [1] | 146530-7220 | CONTROL LEVER ' 1' |
73. | [1] | 014110-6440 | LOCKING WASHER |
75. | [1] | 013020-6040 | UNION NUT |
87. | [1] | 139308-0300 | PLAIN WASHER |
88. | [1] | 146545-0300 | THREADED PIN |
88B. | [1] | 146545-0400 | THREADED PIN |
88C. | [1] | 146545-0500 | THREADED PIN |
90. | [1] | 139208-0100 | UNION NUT |
91. | [1] | 146600-1200 | O-RING |
92. | [1] | 146600-1000 | SEAL RING |
95. | [1] | 146551-0220 | FULCRUM LEVER I=2.2 |
104. | [2] | 146568-0000 | SLOTTED SPRING PIN |
105. | [2] | 026508-1140 | GASKET |
106. | [2] | 146588-0000 | COILED SPRING |
107. | [1] | 146569-0100 | UNION NUT |
108. | [1] | 146570-0000 | GOVERNOR SHAFT L |
109. | [1] | 146600-0400 | O-RING |
110. | [1] | 029998-4130 | SHIM |
110/1. | [1] | 146571-0000 | SHIM |
110/1. | [1] | 146571-0100 | SHIM |
110/1. | [1] | 146571-0200 | SHIM |
110/1. | [1] | 146571-0300 | SHIM |
110/1. | [1] | 146571-0400 | SHIM |
110/1. | [1] | 146571-0500 | SHIM |
110/1. | [1] | 146571-0600 | SHIM |
110/1. | [1] | 146571-0700 | SHIM |
110/1. | [1] | 146571-0800 | SHIM |
111. | [1] | 146602-0600 | PLAIN WASHER |
112. | [1] | 146572-0020 | FLYWEIGHT ASSEMBLY |
114. | [1] | 146602-0500 | PLAIN WASHER |
115. | [1] | 146575-0000 | SLIDING SLEEVE D2.0 |
116. | [1] | 146576-0000 | SEALING CAP |
117. | [1] | 029998-5460 | PLUG |
117/1. | [1] | 146577-0000 | PLUG |
117/1. | [1] | 146577-0100 | PLUG |
117/1. | [1] | 146577-0200 | PLUG |
117/1. | [1] | 146577-0300 | PLUG |
117/1. | [1] | 146577-0400 | PLUG |
117/1. | [1] | 146577-0500 | PLUG |
117/1. | [1] | 146577-0600 | PLUG |
117/1. | [1] | 146577-0700 | PLUG |
117/1. | [1] | 146577-0800 | PLUG |
117/1. | [1] | 146577-0900 | PLUG |
117/1. | [1] | 146577-1000 | PLUG |
117/1. | [1] | 146577-1100 | PLUG |
117/1. | [1] | 146577-1200 | PLUG |
117/1. | [1] | 146577-1300 | PLUG |
117/1. | [1] | 146577-1400 | PLUG |
117/1. | [1] | 146577-1500 | PLUG |
117/1. | [1] | 146577-1600 | PLUG |
117/1. | [1] | 146577-1700 | PLUG |
123. | [4] | 139106-0200 | FLAT-HEAD SCREW |
130. | [1] | 146421-0020 | CAPSULE D14 |
130/2. | [1] | 026508-1140 | GASKET |
130/3. | [1] | 146422-0000 | BLEEDER SCREW |
130/4. | [1] | 146600-0500 | O-RING |
133. | [1] | 146600-0600 | O-RING |
134. | [1] | 146600-0700 | O-RING |
135. | [1] | 146110-0220 | CONTROL VALVE '02'4XD1.6K=1. |
135/5. | [1] | 146114-0000 | SPRING WASHER |
136. | [1] | 146120-0120 | OVER FLOW VALVE |
137. | [2] | 026512-1840 | GASKET |
138. | [1] | 146610-7320 | INLET UNION OUT B1 B2 |
200. | [1] | 146206-0100 | COILED SPRING |
205. | [1] | 029470-4030 | WOODRUFF KEY |
217. | [1] | 146541-0100 | SLOTTED WASHER |
218. | [1] | 146587-1200 | COILED SPRING |
219. | [1] | 146541-0200 | ANGLE PIECE |
220. | [1] | 146587-0900 | COILED SPRING |
221. | [1] | 146613-6000 | BRACKET |
222. | [1] | 139106-0400 | FLAT-HEAD SCREW |
239. | [1] | 023500-5140 | PLAIN WASHER |
240. | [1] | 146650-1220 | PULLING ELECTROMAGNET |
240/8. | [1] | 146600-1700 | O-RING |
242. | [1] | 146658-0210 | WIRE |
243. | [1] | 013020-5240 | UNION NUT |
245. | [3] | 026512-1840 | GASKET |
245. | [3] | 026512-1840 | GASKET |
246. | [1] | 146125-0020 | EYE BOLT |
247. | [1] | 146610-5720 | INLET UNION IN B3 |
248. | [1] | 146614-0200 | SPACER BUSHING |
275. | [1] | 146612-0120 | BRACKET |
276. | [2] | 010010-2040 | BLEEDER SCREW |
277. | [2] | 014111-0440 | LOCKING WASHER |
800S. | [1] | 146009-1020 | PUMP HOUSING |
800S/1. | [1] | 146003-0620 | PUMP HOUSING 2K D20 L R |
800S/1/6. | [1] | 146601-0100 | PACKING RING |
800S/1/6. | [1] | 146601-0100 | PACKING RING |
804S. | [1] | 146232-0320 | COMPRESSION SPRING |
805S. | [1] | 146574-0120 | PARTS SET |
810S. | [1] | 146600-1120 | REPAIR SET |
903. | [1] | 146620-0120 | CAPSULE |
903. | [1] | 146620-0120 | CAPSULE |
903/1. | [1] | 146620-0100 | CAPSULE |
903/2. | [1] | 146600-1300 | O-RING |
906. | [1] | 146632-8800 | NUMBER PLATE |
Include in #2:
104748-1190
as INJECTION-PUMP ASSEMBLY
Cross reference number
BOSCH
9 460 610 178
9460610178
ZEXEL
104748-1190
1047481190
Zexel num
Bosch num
Firm num
Name
104748-1190
9 460 610 178
INJECTION-PUMP ASSEMBLY
Calibration Data:
Adjustment conditions
(Note)
For Japan: year/month/day (change sequence) 1982/04/05 (1)
For Japan: year/month/day (change sequence) 1982/04/05 (1)
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.
32
31.5
32.5
Difference in delivery
mm3/st.
2.5
Basic
*
Injection timing adjustment_02
Pump speed
r/min
2750
2750
2750
Average injection quantity
mm3/st.
15.4
12.4
18.4
Injection timing adjustment_03
Pump speed
r/min
2500
2500
2500
Average injection quantity
mm3/st.
31
29
33
Injection timing adjustment_04
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
32
31
33
Injection timing adjustment_05
Pump speed
r/min
600
600
600
Average injection quantity
mm3/st.
28.1
26.1
30.1
Injection timing adjustment_06
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
31.2
30.7
31.7
Difference in delivery
mm3/st.
2.5
Basic
*
Remarks
For Japan
For Japan
Injection timing adjustment_07
Pump speed
r/min
2750
2750
2750
Average injection quantity
mm3/st.
15
12
18
Remarks
For Japan
For Japan
Injection timing adjustment_08
Pump speed
r/min
2500
2500
2500
Average injection quantity
mm3/st.
30.2
28.2
32.2
Remarks
For Japan
For Japan
Injection timing adjustment_09
Pump speed
r/min
1250
1250
1250
Average injection quantity
mm3/st.
31.2
30.2
32.2
Remarks
For Japan
For Japan
Injection timing adjustment_10
Pump speed
r/min
600
600
600
Average injection quantity
mm3/st.
27.4
25.4
29.4
Remarks
For Japan
For Japan
Injection quantity adjustment
Pump speed
r/min
2750
2750
2750
Average injection quantity
mm3/st.
15.4
12.4
18.4
Basic
*
Injection quantity adjustment_02
Pump speed
r/min
3000
3000
3000
Average injection quantity
mm3/st.
4
Injection quantity adjustment_03
Pump speed
r/min
2750
2750
2750
Average injection quantity
mm3/st.
15
12
18
Basic
*
Remarks
For Japan
For Japan
Injection quantity adjustment_04
Pump speed
r/min
3000
3000
3000
Average injection quantity
mm3/st.
4
Remarks
For Japan
For Japan
Governor adjustment
Pump speed
r/min
365
365
365
Average injection quantity
mm3/st.
7.7
5.7
9.7
Difference in delivery
mm3/st.
2
Basic
*
Governor adjustment_02
Pump speed
r/min
365
365
365
Average injection quantity
mm3/st.
7.7
5.7
9.7
Governor adjustment_03
Pump speed
r/min
500
500
500
Average injection quantity
mm3/st.
3
Governor adjustment_04
Pump speed
r/min
365
365
365
Average injection quantity
mm3/st.
7.5
5.5
9.5
Difference in delivery
mm3/st.
2
Basic
*
Remarks
For Japan
For Japan
Governor adjustment_05
Pump speed
r/min
365
365
365
Average injection quantity
mm3/st.
7.5
5.5
9.5
Remarks
For Japan
For Japan
Governor adjustment_06
Pump speed
r/min
500
500
500
Average injection quantity
mm3/st.
3
Remarks
For Japan
For Japan
Timer adjustment
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
41
41
Basic
*
Timer adjustment_02
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
40
40
Basic
*
Remarks
For Japan
For Japan
Speed control lever angle
Pump speed
r/min
365
365
365
Average injection quantity
mm3/st.
0
0
0
Remarks
Magnet OFF
Magnet OFF
Speed control lever angle_02
Pump speed
r/min
365
365
365
Average injection quantity
mm3/st.
0
0
0
Remarks
For Japan: Magnet OFF
For Japan: Magnet OFF
0000000901
Pump speed
r/min
1400
1400
1400
Overflow quantity
cm3/min
456
324
588
_02
Pump speed
r/min
1400
1400
1400
Overflow quantity
cm3/min
480
348
612
Remarks
For Japan
For Japan
Stop lever angle
Pump speed
r/min
1400
1400
1400
Pressure
kPa
490.5
471
510
Pressure
kgf/cm2
5
4.8
5.2
Basic
*
Stop lever angle_02
Pump speed
r/min
1000
1000
1000
Pressure
kPa
382.5
353
412
Pressure
kgf/cm2
3.9
3.6
4.2
Stop lever angle_03
Pump speed
r/min
1400
1400
1400
Pressure
kPa
490.5
471
510
Pressure
kgf/cm2
5
4.8
5.2
Stop lever angle_04
Pump speed
r/min
2500
2500
2500
Pressure
kPa
764.5
735
794
Pressure
kgf/cm2
7.8
7.5
8.1
Stop lever angle_05
Pump speed
r/min
1400
1400
1400
Pressure
kPa
480.5
461
500
Pressure
kgf/cm2
4.9
4.7
5.1
Basic
*
Remarks
For Japan
For Japan
Stop lever angle_06
Pump speed
r/min
1000
1000
1000
Pressure
kPa
372.5
343
402
Pressure
kgf/cm2
3.8
3.5
4.1
Remarks
For Japan
For Japan
Stop lever angle_07
Pump speed
r/min
1400
1400
1400
Pressure
kPa
480.5
461
500
Pressure
kgf/cm2
4.9
4.7
5.1
Remarks
For Japan
For Japan
Stop lever angle_08
Pump speed
r/min
2500
2500
2500
Pressure
kPa
755.5
726
785
Pressure
kgf/cm2
7.7
7.4
8
Remarks
For Japan
For Japan
0000001101
Pump speed
r/min
1400
1400
1400
Timer stroke
mm
2.9
2.7
3.1
Basic
*
_02
Pump speed
r/min
1400
1400
1400
Timer stroke
mm
2.9
2.6
3.2
_03
Pump speed
r/min
2000
2000
2000
Timer stroke
mm
4.9
4.3
5.5
_04
Pump speed
r/min
2750
2750
2750
Timer stroke
mm
7.5
7
8
_05
Pump speed
r/min
1400
1400
1400
Timer stroke
mm
2.8
2.6
3
Basic
*
Remarks
For Japan
For Japan
_06
Pump speed
r/min
1400
1400
1400
Timer stroke
mm
2.8
2.5
3.1
Remarks
For Japan
For Japan
_07
Pump speed
r/min
2000
2000
2000
Timer stroke
mm
4.8
4.2
5.4
Remarks
For Japan
For Japan
_08
Pump speed
r/min
2750
2750
2750
Timer stroke
mm
7.35
6.9
7.8
Remarks
For Japan
For Japan
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
1.6
1.5
1.7
Control lever angle alpha
deg.
25
21
29
Control lever angle beta
deg.
38
33
43
Information:
Caterpillar does not recommend checking actual engine bearing clearances, particularly on small engines, because of the possibility of obtaining inaccurate results, and the possibility of damaging the bearing or journal surfaces. Each Caterpillar engine bearing is quality checked for specific wall thickness. If the crankshaft journals and bores for the block and rods were measured at disassembly and found to be within specifications, no further checks are necessary when using the correct bearings. However, if the serviceman still wants to measure the bearing clearances, Plastigage is an acceptable method. Plastigage is less accurate on small diameter journals where clearances are less than 0.10 mm (0.004 in).
Lead wire, shim stock or a dial bore gauge can damage the bearing surfaces.
1. The serviceman must be very careful to use Plastigage correctly. The following points must be remembered:a. Make sure that the backs of the bearings and the bores are clean and dry.b. Make sure that the bearing locking tabs are properly seated in their slots.c. The crankshaft must be free of oil where the Plastigage touches it.d. If the main bearing clearances are checked with the engine upright or on its side, the crankshaft must be supported. Use a jack under an adjacent crankshaft counterweight and hold the crankshaft against the crown of the bearing. If the crankshaft is not supported, the weight of the crankshaft will cause incorrect readings.e. Put a piece of Plastigage on the crown of the bearing half that is in the cap. Do not allow the Plastigage to extend over the edge of the bearing.f. Install the bearing cap using the correct torque-turn specifications. Do not use an impact wrench. Be careful not to dislodge the bearing when the cap is installed.g. Do not turn the crankshaft with the Plastigage installed. h. Carefully remove the cap but do not remove the Plastigage. Measure the width of the Plastigage while it is in the bearing cap or on the crankshaft journal, See photograph.i. Remove all the Plastigage before reinstalling the cap. When using Plastigage, the readings can sometimes be unclear. For example, all parts of the Plastigage are not the same width. Measure the major width to make sure they are within the specification range.
Lead wire, shim stock or a dial bore gauge can damage the bearing surfaces.
1. The serviceman must be very careful to use Plastigage correctly. The following points must be remembered:a. Make sure that the backs of the bearings and the bores are clean and dry.b. Make sure that the bearing locking tabs are properly seated in their slots.c. The crankshaft must be free of oil where the Plastigage touches it.d. If the main bearing clearances are checked with the engine upright or on its side, the crankshaft must be supported. Use a jack under an adjacent crankshaft counterweight and hold the crankshaft against the crown of the bearing. If the crankshaft is not supported, the weight of the crankshaft will cause incorrect readings.e. Put a piece of Plastigage on the crown of the bearing half that is in the cap. Do not allow the Plastigage to extend over the edge of the bearing.f. Install the bearing cap using the correct torque-turn specifications. Do not use an impact wrench. Be careful not to dislodge the bearing when the cap is installed.g. Do not turn the crankshaft with the Plastigage installed. h. Carefully remove the cap but do not remove the Plastigage. Measure the width of the Plastigage while it is in the bearing cap or on the crankshaft journal, See photograph.i. Remove all the Plastigage before reinstalling the cap. When using Plastigage, the readings can sometimes be unclear. For example, all parts of the Plastigage are not the same width. Measure the major width to make sure they are within the specification range.
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104748-1190
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