Information injection-pump assembly
BOSCH
9 460 612 347
9460612347
ZEXEL
104748-1801
1047481801
ISUZU
8943235551
8943235551
Rating:
Components :
0. | INJECTION-PUMP ASSEMBLY | 104748-1801 |
1. | _ | |
2. | FUEL INJECTION PUMP | 104648-1801 |
3. | NUMBER PLATE | 146916-9900 |
4. | _ | 146672-1720 |
5. | CAPSULE | |
6. | ADJUSTING DEVICE | |
7. | NOZZLE AND HOLDER ASSY | 105141-2061 |
8. | Nozzle and Holder | 8-94220-084-3 |
9. | Open Pre:MPa(Kqf/cm2) | 11.8{120} |
10. | NOZZLE-HOLDER | 105071-1380 |
11. | NOZZLE | 105000-1770 |
Scheme ###:
1/6. | [1] | 146601-0700 | PACKING RING |
6. | [1] | 146100-0120 | SUPPLY PUMP |
9. | [1] | 146103-0000 | COVER |
10. | [2] | 139104-0000 | FLAT-HEAD SCREW |
12. | [1] | 146200-0320 | DRIVE SHAFT |
12/1. | [1] | 146200-0300 | DRIVE SHAFT |
12/2. | [1] | 146201-0000 | WOODRUFF KEY |
12/3. | [2] | 146202-0100 | DAMPER |
12/4. | [1] | 146203-0000 | TOOTHED GEAR |
17. | [1] | 146204-0000 | PLAIN WASHER |
20. | [1] | 146210-1720 | ROLLER SET |
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 |
30. | [1] | 146600-0800 | O-RING |
31. | [1] | 146300-0000 | PUMP PLUNGER |
32. | [1] | 146301-0000 | SLIDING PIECE |
33. | [1] | 146603-0700 | SHIM D17.5&7.5T0.60 |
34. | [1] | 146302-4000 | COMPRESSION SPRING |
35/1. | [0] | 146603-0700 | SHIM D17.5&7.5T0.60 |
35/1. | [0] | 146603-0800 | SHIM D17.5&7.5T0.70 |
35/1. | [0] | 146603-0900 | SHIM D17.5&7.5T0.90 |
35/1. | [0] | 146603-1000 | SHIM D17.5&7.5T1.00 |
35/1. | [0] | 146603-1100 | SHIM D17.5&7.5T1.20 |
35/1. | [0] | 146603-3600 | SHIM D17.5&7.5T2.40 |
36. | [1] | 146600-0800 | O-RING |
37. | [1] | 146310-0100 | COVER |
38. | [2] | 146620-5000 | BLEEDER SCREW |
39. | [1] | 146310-0100 | COVER |
40. | [2] | 146620-5000 | BLEEDER SCREW |
43. | [1] | 146230-0000 | SHIM |
44. | [1] | 146230-0100 | PLAIN WASHER |
45. | [1] | 146231-0001 | SLOTTED WASHER |
47. | [2] | 146233-0000 | SLOTTED WASHER |
48/1. | [1] | 146603-0000 | SHIM D17.0&5.2T0.50 |
48/1. | [1] | 146603-0100 | SHIM D17.0&5.2T0.80 |
48/1. | [1] | 146603-0200 | SHIM D17.0&5.2T1.00 |
48/1. | [1] | 146603-0300 | SHIM D17.0&5.2T1.20 |
48/1. | [1] | 146603-0400 | SHIM D17.0&5.2T1.50 |
48/1. | [1] | 146603-0500 | SHIM D17.0&5.2T1.80 |
48/1. | [1] | 146603-0600 | SHIM D17.0&5.2T2.00 |
48/1. | [1] | 146690-1400 | SHIM D17&5.2T0.9 |
48/1. | [1] | 146690-1500 | SHIM D17&5.2T1.1 |
48/1. | [1] | 146690-1600 | SHIM D17&5.2T1.3 |
48/1. | [1] | 146690-1700 | SHIM D17&5.2T1.4 |
48/1. | [1] | 146690-1800 | SHIM D17&5.2T1.6 |
48/1. | [1] | 146690-1900 | SHIM D17&5.2T1.7 |
48/1. | [1] | 146690-5800 | SHIM |
48/1. | [1] | 146690-5900 | SHIM |
48/1. | [1] | 146690-6000 | SHIM |
48/1. | [1] | 146690-6100 | SHIM |
48/1. | [1] | 146690-6200 | SHIM |
48/1. | [1] | 146690-6300 | SHIM |
48/1. | [1] | 146690-6400 | SHIM |
48/1. | [1] | 146690-6500 | SHIM |
48/1. | [1] | 146690-6600 | SHIM |
48/1. | [1] | 146690-6700 | SHIM |
48/1. | [1] | 146690-6800 | SHIM |
48/1. | [1] | 146690-6900 | SHIM |
48/1. | [1] | 146690-7000 | SHIM |
48/1. | [1] | 146690-7100 | SHIM |
48/1. | [1] | 146690-7200 | SHIM |
48/1. | [1] | 146690-7300 | SHIM |
48/1. | [1] | 146690-7400 | SHIM |
48/1. | [1] | 146690-7500 | SHIM |
48/1. | [1] | 146690-7800 | SHIM |
49. | [2] | 146234-0500 | GUIDE PIN |
50. | [1] | 146403-0020 | HYDRAULIC HEAD |
50. | [1] | 146403-0020 | HYDRAULIC HEAD |
50. | [1] | 146403-0020 | HYDRAULIC HEAD |
51. | [1] | 146600-0000 | O-RING |
52/1. | [1] | 146420-0000 | SHIM D9.5&3.0T1.90 |
52/1. | [1] | 146420-0100 | SHIM D9.5&3.0T1.92 |
52/1. | [1] | 146420-0200 | SHIM D9.5&3.0T1.94 |
52/1. | [1] | 146420-0300 | SHIM D9.5&3.0T1.96 |
52/1. | [1] | 146420-0400 | SHIM D9.5&3.0T1.98 |
52/1. | [1] | 146420-0500 | SHIM D9.5&3.0T2.00 |
52/1. | [1] | 146420-0600 | SHIM D9.5&3.0T2.02 |
52/1. | [1] | 146420-0700 | SHIM D9.5&3.0T2.04 |
52/1. | [1] | 146420-0800 | SHIM D9.5&3.0T2.06 |
52/1. | [1] | 146420-0900 | SHIM D9.5&3.0T2.08 |
52/1. | [1] | 146420-1000 | SHIM D9.5&3.0T2.10 |
52/1. | [1] | 146420-1100 | SHIM D9.5&3.0T2.12 |
52/1. | [1] | 146420-1200 | SHIM D9.5&3.0T2.14 |
52/1. | [1] | 146420-1300 | SHIM D9.5&3.0T2.16 |
52/1. | [1] | 146420-1400 | SHIM D9.5&3.0T2.18 |
52/1. | [1] | 146420-1500 | SHIM D9.5&3.0T2.20 |
52/1. | [1] | 146420-1600 | SHIM D9.5&3.0T2.22 |
52/1. | [1] | 146420-1700 | SHIM D9.5&3.0T2.24 |
52/1. | [1] | 146420-1800 | SHIM D9.5&3.0T2.26 |
52/1. | [1] | 146420-1900 | SHIM D9.5&3.0T2.28 |
52/1. | [1] | 146420-2000 | SHIM D9.5&3.0T2.30 |
52/1. | [1] | 146420-2100 | SHIM D9.5&3.0T2.32 |
52/1. | [1] | 146420-2200 | SHIM D9.5&3.0T2.34 |
52/1. | [1] | 146420-2300 | SHIM D9.5&3.0T2.36 |
52/1. | [1] | 146420-2400 | SHIM D9.5&3.0T2.38 |
52/1. | [1] | 146420-2500 | SHIM D9.5&3.0T2.40 |
52/1. | [1] | 146420-2600 | SHIM D9.5&3.0T2.42 |
52/1. | [1] | 146420-2700 | SHIM D9.5&3.0T2.44 |
52/1. | [1] | 146420-2800 | SHIM D9.5&3.0T2.46 |
52/1. | [1] | 146420-2900 | SHIM D9.5&3.0T2.48 |
52/1. | [1] | 146420-3000 | SHIM D9.5&3.0T2.50 |
52/1. | [1] | 146420-3100 | SHIM D9.5&3.0T2.52 |
52/1. | [1] | 146420-3200 | SHIM D9.5&3.0T2.54 |
52/1. | [1] | 146420-3300 | SHIM D9.5&3.0T2.56 |
52/1. | [1] | 146420-3400 | SHIM D9.5&3.0T2.58 |
52/1. | [1] | 146420-3500 | SHIM D9.5&3.0T2.60 |
52/1. | [1] | 146420-3600 | SHIM D9.5&3.0T2.62 |
52/1. | [1] | 146420-3700 | SHIM D9.5&3.0T2.64 |
52/1. | [1] | 146420-3800 | SHIM D9.5&3.0T2.66 |
52/1. | [1] | 146420-3900 | SHIM D9.5&3.0T2.68 |
52/1. | [1] | 146420-4000 | SHIM D9.5&3.0T2.70 |
52/1. | [1] | 146420-4100 | SHIM D9.5&3.0T2.72 |
52/1. | [1] | 146420-4200 | SHIM D9.5&3.0T2.74 |
52/1. | [1] | 146420-4300 | SHIM D9.5&3.0T2.76 |
52/1. | [1] | 146420-4400 | SHIM D9.5&3.0T2.78 |
52/1. | [1] | 146420-4500 | SHIM D9.5&3.0T2.80 |
52/1. | [1] | 146420-4600 | SHIM D9.5&3.0T2.82 |
52/1. | [1] | 146420-4700 | SHIM D9.5&3.0T2.84 |
52/1. | [1] | 146420-4800 | SHIM D9.5&3.0T2.86 |
52/1. | [1] | 146420-4900 | SHIM D9.5&3.0T2.88 |
52/1. | [1] | 146420-5000 | SHIM D9.5&3.0T2.90 |
52/1. | [1] | 146420-5100 | SHIM D9.5&3.0T1.74 |
52/1. | [1] | 146420-5200 | SHIM D9.5&3.0T1.76 |
52/1. | [1] | 146420-5300 | SHIM D9.5&3.0T1.78 |
52/1. | [1] | 146420-5400 | SHIM D9.5&3.0T1.80 |
52/1. | [1] | 146420-5500 | SHIM D9.5&3.0T1.82 |
52/1. | [1] | 146420-5600 | SHIM D9.5&3.0T1.84 |
52/1. | [1] | 146420-5700 | SHIM D9.5&3.0T1.86 |
52/1. | [1] | 146420-5800 | SHIM D9.5&3.0T1.88 |
54. | [4] | 146433-0100 | GASKET D12&6.4T1.00 |
55. | [4] | 146430-0020 | DELIVERY-VALVE ASSEMBLY |
56. | [4] | 146432-0000 | COMPRESSION SPRING |
58. | [4] | 146440-0120 | FITTING |
60. | [4] | 139106-0100 | FLAT-HEAD SCREW |
67. | [1] | 146503-4521 | GOVERNOR COVER |
67/1. | [1] | 146508-6321 | GOVERNOR COVER |
67/2. | [1] | 146515-0320 | CONTROL SHAFT |
67/3. | [1] | 146600-0100 | O-RING |
67/4. | [2] | 139310-0200 | PLAIN WASHER |
67/4. | [2] | 139310-0200 | PLAIN WASHER |
67/5. | [1] | 146535-6000 | CONTROL LEVER |
67/5B. | [1] | 146535-6100 | CONTROL LEVER |
67/6. | [2] | 014110-6440 | LOCKING WASHER |
67/6. | [2] | 014110-6440 | LOCKING WASHER |
67/7. | [1] | 013020-6040 | UNION NUT M6P1H5 |
67/8. | [1] | 146515-0120 | LEVER SHAFT |
67/9. | [1] | 146587-0100 | COILED SPRING |
67/10. | [1] | 146600-0200 | O-RING |
67/11. | [1] | 146602-0100 | PLAIN WASHER D14&10.1T1.50 |
67/12. | [1] | 146540-4200 | CONTROL LEVER |
67/12B. | [1] | 146540-4300 | CONTROL LEVER |
67/13. | [1] | 013020-6040 | UNION NUT M6P1H5 |
67/14. | [1] | 146621-1700 | UNION NUT |
67/15. | [1] | 146526-2800 | BLEEDER SCREW |
67/16. | [1] | 146526-2800 | BLEEDER SCREW |
67/18. | [1] | 146587-1100 | COILED SPRING |
67/23. | [1] | 146926-7920 | BRACKET |
67/24. | [2] | 139006-4400 | BLEEDER SCREW |
67/25. | [1] | 013020-6040 | UNION NUT M6P1H5 |
67/26. | [1] | 146625-1820 | BRACKET |
67/78. | [1] | 146600-4400 | SEAL RING |
67/200. | [1] | 139308-0300 | PLAIN WASHER |
67/201. | [1] | 146545-3400 | THREADED PIN L53.00 |
67/201B. | [1] | 146545-3500 | THREADED PIN L55.00 |
67/201C. | [1] | 146545-3600 | THREADED PIN L57.00 |
67/202. | [1] | 139208-0900 | UNION NUT |
67/203. | [1] | 146600-1200 | O-RING |
95. | [1] | 146551-9120 | FULCRUM LEVER |
104. | [2] | 146568-0000 | SLOTTED SPRING PIN |
105. | [2] | 026508-1140 | GASKET D11.4&8.2T1 |
106. | [2] | 146588-0500 | COILED SPRING |
107. | [1] | 146569-0300 | UNION NUT |
108. | [1] | 146570-0100 | GOVERNOR SHAFT |
109. | [1] | 146600-0400 | O-RING |
110/1. | [1] | 146571-0000 | SHIM D20.2&8.3T1.05 |
110/1. | [1] | 146571-0100 | SHIM D20.2&8.3T1.25 |
110/1. | [1] | 146571-0200 | SHIM D20.2&8.3T1.45 |
110/1. | [1] | 146571-0300 | SHIM D20.2&8.3T1.65 |
110/1. | [1] | 146571-0400 | SHIM D20.2&8.3T1.85 |
110/1. | [1] | 146571-0500 | SHIM D20.2&8.3T1.15 |
110/1. | [1] | 146571-0600 | SHIM D20.2&8.3T1.35 |
110/1. | [1] | 146571-0700 | SHIM D20.2&8.3T1.55 |
110/1. | [1] | 146571-0800 | SHIM D20.2&8.3T1.75 |
111. | [1] | 146602-0600 | PLAIN WASHER D20&8.4T1.40 |
112. | [1] | 146572-0020 | FLYWEIGHT ASSEMBLY |
114. | [1] | 146602-2600 | PLAIN WASHER D34&13T1.0 |
115. | [1] | 146575-2710 | SLIDING SLEEVE |
116. | [1] | 146576-0200 | CAP |
117/1. | [1] | 146577-1800 | PLUG L2.10 |
117/1. | [1] | 146577-1900 | PLUG L2.30 |
117/1. | [1] | 146577-2000 | PLUG L2.50 |
117/1. | [1] | 146577-2100 | PLUG L2.70 |
117/1. | [1] | 146577-2200 | PLUG L2.90 |
117/1. | [1] | 146577-2300 | PLUG L3.10 |
117/1. | [1] | 146577-2400 | PLUG L3.30 |
117/1. | [1] | 146577-2500 | PLUG L3.50 |
117/1. | [1] | 146577-2600 | PLUG L3.70 |
117/1. | [1] | 146577-2700 | PLUG L3.90 |
117/1. | [1] | 146577-2800 | PLUG L4.10 |
117/1. | [1] | 146577-2900 | PLUG L4.30 |
117/1. | [1] | 146577-3000 | PLUG L4.50 |
117/1. | [1] | 146577-3100 | PLUG L4.70 |
117/1. | [1] | 146577-3200 | PLUG L4.90 |
117/1. | [1] | 146577-3300 | PLUG L5.10 |
117/1. | [1] | 146577-6700 | PLUG L2.2 |
117/1. | [1] | 146577-6800 | PLUG L2.4 |
117/1. | [1] | 146577-6900 | PLUG L2.6 |
117/1. | [1] | 146577-7000 | PLUG L2.8 |
117/1. | [1] | 146577-7100 | PLUG L3.0 |
117/1. | [1] | 146577-7200 | PLUG L3.2 |
117/1. | [1] | 146577-7300 | PLUG L3.4 |
117/1. | [1] | 146577-7400 | PLUG L3.6 |
117/1. | [1] | 146577-7500 | PLUG L3.8 |
117/1. | [1] | 146577-7600 | PLUG L4.0 |
117/1. | [1] | 146577-7700 | PLUG L4.2 |
117/1. | [1] | 146577-7800 | PLUG L4.4 |
117/1. | [1] | 146577-7900 | PLUG L4.6 |
117/1. | [1] | 146577-8000 | PLUG L4.8 |
117/1. | [1] | 146577-8100 | PLUG L5.0 |
117/1. | [1] | 146877-0000 | PLUG L5.2 |
117/1. | [1] | 146877-0100 | PLUG L5.3 |
117/1. | [1] | 146877-0200 | PLUG L5.4 |
117/1. | [1] | 146877-0300 | PLUG L5.5 |
117/1. | [1] | 146877-4700 | PLUG |
117/1. | [1] | 146877-4800 | PLUG |
117/1. | [1] | 146877-4900 | PLUG |
117/1. | [1] | 146877-5000 | PLUG |
120. | [1] | 146579-8420 | RETAINING PIN |
122. | [1] | 146580-1400 | GOVERNOR SPRING |
123. | [4] | 139106-0200 | FLAT-HEAD SCREW |
130. | [1] | 146421-0020 | CAPSULE |
130/2. | [1] | 026508-1140 | GASKET D11.4&8.2T1 |
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 |
135/5. | [1] | 146114-0000 | SPRING WASHER |
136. | [1] | 146120-0120 | OVER FLOW VALVE |
137. | [2] | 139512-0500 | GASKET |
138. | [1] | 146610-7320 | INLET UNION |
200. | [1] | 146206-0100 | COILED SPRING |
205. | [1] | 029470-4030 | WOODRUFF KEY |
240. | [1] | 146650-0820 | PULLING ELECTROMAGNET |
240/8. | [1] | 146600-1700 | O-RING |
242. | [1] | 146658-9720 | WIRE |
243. | [1] | 146621-1000 | UNION NUT |
245. | [3] | 139512-0500 | GASKET |
246. | [1] | 146125-0020 | EYE BOLT |
247. | [1] | 146610-5720 | INLET UNION |
248. | [1] | 146614-0200 | SPACER BUSHING |
275. | [1] | 146612-0120 | BRACKET |
276. | [2] | 010010-2040 | BLEEDER SCREW M10P1.5L20 |
800S. | [1] | 146019-8120 | PUMP HOUSING |
800S/1/6. | [1] | 146601-0700 | PACKING RING |
804S. | [1] | 146232-0220 | COMPRESSION SPRING |
805S. | [1] | 146574-0320 | PARTS SET |
810S. | [1] | 146600-1120 | REPAIR SET |
821S. | [1] | 146210-5720 | ROLLER SET |
835S. | [1] | 146598-1000 | CAP |
836S/1. | [1] | 146598-0600 | CAP L18 |
836S/1. | [1] | 146598-0700 | CAP L21 |
836S/1. | [1] | 146598-0800 | CAP L24 |
836S/1. | [1] | 146598-0900 | CAP L27 |
903. | [1] | 146672-1720 | PULSE GENERATOR |
903/2. | [1] | 146600-1300 | O-RING &13W1.9 |
906. | [1] | 146916-9900 | NAMEPLATE |
Include in #2:
104748-1801
as INJECTION-PUMP ASSEMBLY
Cross reference number
BOSCH
9 460 612 347
9460612347
ZEXEL
104748-1801
1047481801
ISUZU
8943235551
8943235551
Zexel num
Bosch num
Firm num
Name
104748-1801
9 460 612 347
8943235551 ISUZU
INJECTION-PUMP ASSEMBLY
4FB1PD K 11CJ INJECTION PUMP ASSY VE4 VE
4FB1PD K 11CJ INJECTION PUMP ASSY VE4 VE
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
800
800
800
Average injection quantity
mm3/st.
29
28.5
29.5
Difference in delivery
mm3/st.
2.5
Basic
*
Oil temperature
degC
50
48
52
Injection timing adjustment_02
Pump speed
r/min
500
500
500
Average injection quantity
mm3/st.
26.5
24.5
28.5
Oil temperature
degC
50
48
52
Injection timing adjustment_03
Pump speed
r/min
800
800
800
Average injection quantity
mm3/st.
29
28
30
Difference in delivery
mm3/st.
2.5
Basic
*
Oil temperature
degC
50
48
52
Injection quantity adjustment
Pump speed
r/min
900
900
900
Average injection quantity
mm3/st.
24
23
25
Difference in delivery
mm3/st.
6
Basic
*
Oil temperature
degC
50
48
52
Injection quantity adjustment_02
Pump speed
r/min
900
900
900
Average injection quantity
mm3/st.
24
23
25
Difference in delivery
mm3/st.
6
Basic
*
Oil temperature
degC
50
48
52
Injection quantity adjustment_03
Pump speed
r/min
1100
1100
1100
Average injection quantity
mm3/st.
3
Oil temperature
degC
50
48
52
Governor adjustment
Pump speed
r/min
375
375
375
Average injection quantity
mm3/st.
7.5
5.5
9.5
Difference in delivery
mm3/st.
2
Basic
*
Oil temperature
degC
48
46
50
Governor adjustment_02
Pump speed
r/min
375
375
375
Average injection quantity
mm3/st.
7.5
5.5
9.5
Difference in delivery
mm3/st.
2
Basic
*
Oil temperature
degC
48
46
50
Timer adjustment
Pump speed
r/min
100
100
100
Average injection quantity
mm3/st.
45
41.5
48.5
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.
45
41.5
48.5
Oil temperature
degC
48
46
50
Speed control lever angle
Pump speed
r/min
375
375
375
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
600
600
600
Overflow quantity
cm3/min
320
190
450
Oil temperature
degC
50
48
52
Stop lever angle
Pump speed
r/min
600
600
600
Pressure
kPa
294
274
314
Pressure
kgf/cm2
3
2.8
3.2
Basic
*
Oil temperature
degC
50
48
52
0000001201
Max. applied voltage
V
16
16
16
Test voltage
V
25
24
26
Timing setting
K dimension
mm
3.3
3.2
3.4
KF dimension
mm
5.8
5.7
5.9
MS dimension
mm
2.1
2
2.2
Control lever angle alpha
deg.
25
21
29
Control lever angle beta
deg.
22
17
27
Test data Ex:
0000001801 STARTING I/Q ADJUSTMENT
Starting injection quantity adjustment
Adjust the adjusting bolt A so that the starting injection quantity adjustment is within the standards.
Fix using nut (B).
(C) = stopper bolt
----------
----------
L=2~8.5mm
----------
----------
L=2~8.5mm
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. Be sure that the backs of the bearings and the bores are clean and dry.b. Be sure that the bearing locking tabs are properly seated in their studs.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 run 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 be sure they are width 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. Be sure that the backs of the bearings and the bores are clean and dry.b. Be sure that the bearing locking tabs are properly seated in their studs.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 run 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 be sure they are width the specification range.
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104748-1801
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INJECTION-PUMP ASSEMBLY
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