Information injection-pump assembly
BOSCH
9 460 614 898
9460614898
ZEXEL
104746-5343
1047465343
ISUZU
8972882684
8972882684

Rating:
Components :
0. | INJECTION-PUMP ASSEMBLY | 104746-5343 |
1. | _ | |
2. | FUEL INJECTION PUMP | 104646-5343 |
3. | NUMBER PLATE | 146979-3200 |
4. | _ | 146672-1720 |
5. | CAPSULE | |
6. | ADJUSTING DEVICE | 146679-5520 |
7. | NOZZLE AND HOLDER ASSY | 105118-7722 |
8. | Nozzle and Holder | |
9. | Open Pre:MPa(Kqf/cm2) | 19.1{195}/25.0{255} |
10. | NOZZLE-HOLDER | 105048-2231 |
11. | NOZZLE | 105019-1540 |
Scheme ###:
1/6. | [1] | 146601-0700 | PACKING RING |
6. | [1] | 146100-0120 | SUPPLY PUMP |
9. | [1] | 146103-0400 | COVER |
10. | [2] | 139104-0000 | FLAT-HEAD SCREW |
12. | [1] | 146200-1920 | DRIVE SHAFT |
12/1. | [1] | 146200-1900 | DRIVE SHAFT |
12/2. | [1] | 146201-0000 | WOODRUFF KEY |
12/3. | [2] | 146202-0100 | DAMPER |
12/4. | [1] | 146203-0000 | TOOTHED GEAR |
12/5. | [1] | 146206-0400 | COILED SPRING |
17. | [1] | 146204-0100 | PLAIN WASHER |
20. | [1] | 146210-7720 | ROLLER SET |
24. | [1] | 146303-0400 | BEARING PIN |
25. | [1] | 146304-0000 | BEARING PIN |
26. | [1] | 146305-0000 | CLAMPING BAND |
27. | [1] | 146205-0301 | SLOTTED WASHER |
29. | [1] | 146220-7220 | CAM PLATE |
30. | [1] | 146600-6200 | GASKET |
31. | [1] | 146300-5300 | PUMP PLUNGER |
32. | [1] | 146301-0500 | SLIDING PIECE |
33. | [1] | 146603-0700 | SHIM D17.5&7.5T0.60 |
34. | [1] | 146306-4500 | COMPRESSION SPRING |
34B. | [1] | 146306-2400 | COMPRESSION SPRING |
34C. | [1] | 146302-5600 | 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] | 146600-6200 | GASKET |
37. | [1] | 146310-0000 | COVER |
38. | [2] | 146622-0300 | BLEEDER SCREW |
39. | [1] | 146310-5500 | COVER |
40. | [2] | 146622-0300 | 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 D17&5.2T2.1 |
48/1. | [1] | 146690-5900 | SHIM D17&5.2T2.2 |
48/1. | [1] | 146690-6000 | SHIM D17&5.2T2.3 |
48/1. | [1] | 146690-6100 | SHIM D17&5.2T2.4 |
48/1. | [1] | 146690-6200 | SHIM D17&5.2T2.5 |
48/1. | [1] | 146690-6300 | SHIM D17&5.2T2.6 |
48/1. | [1] | 146690-6400 | SHIM D17&5.2T2.7 |
48/1. | [1] | 146690-6500 | SHIM D17&5.2T2.8 |
48/1. | [1] | 146690-6600 | SHIM D17&5.2T2.9 |
48/1. | [1] | 146690-6700 | SHIM D17&5.2T3.0 |
48/1. | [1] | 146690-6800 | SHIM D17&5.2T3.1 |
48/1. | [1] | 146690-6900 | SHIM D17&5.2T3.2 |
48/1. | [1] | 146690-7000 | SHIM D17&5.2T3.3 |
48/1. | [1] | 146690-7100 | SHIM D17&5.2T3.4 |
48/1. | [1] | 146690-7200 | SHIM D17&5.2T0.4 |
48/1. | [1] | 146690-7300 | SHIM D17&5.2T0.6 |
48/1. | [1] | 146690-7400 | SHIM D17&5.2T0.7 |
48/1. | [1] | 146690-7500 | SHIM D17&5.2T1.9 |
48/1. | [1] | 146690-7800 | SHIM D17&5.2T0.2 |
49. | [2] | 146234-0800 | GUIDE PIN |
50. | [1] | 146402-5220 | HYDRAULIC HEAD |
50. | [1] | 146402-5220 | HYDRAULIC HEAD |
50. | [1] | 146402-5220 | 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 |
58. | [4] | 149300-0521 | PRESSURE-CONTROL VALVE |
60. | [4] | 139106-0100 | FLAT-HEAD SCREW |
66. | [1] | 146600-0100 | O-RING |
67. | [1] | 146504-4620 | GOVERNOR COVER |
67/1. | [1] | 146806-7920 | GOVERNOR COVER |
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 |
67/23. | [1] | 146936-1300 | BRACKET |
67/24. | [2] | 139006-4500 | BLEEDER SCREW |
67/64. | [1] | 146936-1220 | BRACKET |
67/68. | [2] | 139006-4400 | BLEEDER SCREW |
67/69. | [1] | 146620-6100 | BLEEDER SCREW |
67/78. | [1] | 146600-4400 | SEAL RING |
67/102. | [1] | 146932-1100 | BRACKET |
67/103. | [1] | 139006-4800 | BLEEDER SCREW |
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 |
68. | [1] | 146811-0720 | CONTROL SHAFT |
69. | [1] | 139310-0200 | PLAIN WASHER |
72. | [1] | 146831-1800 | CONTROL LEVER |
72B. | [1] | 146831-1900 | CONTROL LEVER |
72D. | [1] | 146832-8000 | CONTROL LEVER |
73. | [1] | 014110-6440 | LOCKING WASHER |
75. | [1] | 013020-6040 | UNION NUT M6P1H5 |
95. | [1] | 146855-0320 | 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] | 146975-4200 | 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 |
123. | [4] | 139106-0200 | FLAT-HEAD SCREW |
130. | [1] | 146421-1620 | CAPSULE |
130/3. | [1] | 146600-0500 | O-RING |
133. | [1] | 146600-0600 | O-RING |
134. | [1] | 146600-0700 | O-RING |
135. | [1] | 146110-0620 | CONTROL VALVE |
135/5. | [1] | 146114-0000 | SPRING WASHER |
136. | [1] | 146120-2620 | OVER FLOW VALVE |
137. | [2] | 139512-0500 | GASKET |
138. | [1] | 146677-4020 | INLET UNION |
158. | [1] | 020105-0940 | BLEEDER SCREW |
159. | [1] | 146625-8000 | PLATE |
163. | [1] | 139006-5700 | BLEEDER SCREW |
205. | [1] | 029470-4030 | WOODRUFF KEY |
220. | [1] | 146587-5000 | COILED SPRING |
240. | [1] | 146650-1220 | PULLING ELECTROMAGNET |
240/8. | [1] | 146600-1700 | O-RING |
242. | [1] | 146658-7320 | WIRE |
243. | [1] | 146621-4901 | UNION NUT |
245. | [2] | 139512-0500 | GASKET |
246. | [1] | 027412-2440 | EYE BOLT |
247. | [1] | 146609-4620 | INLET UNION |
260. | [1] | 146611-2121 | BRACKET |
261. | [2] | 146621-4700 | UNION NUT |
262. | [1] | 139008-0900 | BLEEDER SCREW |
264. | [1] | 016500-5010 | O-RING |
310. | [1] | 146685-6720 | POTENTCIOMETER |
310/3. | [2] | 139104-0400 | FLAT-HEAD SCREW |
310/4. | [1] | 146648-2900 | JOINT CONNECTION |
310/4B. | [1] | 146648-3000 | JOINT CONNECTION |
310/4C. | [1] | 146648-3100 | JOINT CONNECTION |
310/4D. | [1] | 146648-3200 | JOINT CONNECTION |
310/4E. | [1] | 146648-3300 | JOINT CONNECTION |
310/4F. | [1] | 146648-4700 | JOINT CONNECTION |
310/4G. | [1] | 146648-5300 | JOINT CONNECTION |
310/4H. | [1] | 146649-1700 | JOINT CONNECTION |
310/4I. | [1] | 146649-7700 | JOINT CONNECTION |
310/4J. | [1] | 146649-7800 | JOINT CONNECTION |
310/4K. | [1] | 146649-7900 | JOINT CONNECTION |
310/4L. | [1] | 146649-8000 | JOINT CONNECTION |
310/4M. | [1] | 146649-8100 | JOINT CONNECTION |
310/4N. | [1] | 146649-8200 | JOINT CONNECTION |
310/4O. | [1] | 146649-8300 | JOINT CONNECTION |
310/4P. | [1] | 146649-9400 | JOINT CONNECTION |
310/5. | [1] | 146661-0601 | BOOT |
800S. | [1] | 146020-2020 | PUMP HOUSING |
800S/1/6. | [1] | 146601-0700 | PACKING RING |
804S. | [1] | 146232-1320 | COMPRESSION SPRING |
805S. | [1] | 146574-0920 | PARTS SET |
810S. | [1] | 146600-6320 | REPAIR SET |
821S. | [1] | 146210-7820 | 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 |
839S. | [1] | 146421-1820 | CAPSULE |
839S/3. | [1] | 146600-0500 | O-RING |
903. | [1] | 146672-1720 | PULSE GENERATOR |
903/2. | [1] | 146600-1300 | O-RING &13W1.9 |
905. | [1] | 146679-5520 | ADJUSTING DEVICE |
906. | [1] | 146979-3200 | NAMEPLATE |
912. | [1] | 139006-4700 | BLEEDER SCREW |
913. | [1] | 013020-6040 | UNION NUT M6P1H5 |
Include in #2:
104746-5343
as INJECTION-PUMP ASSEMBLY
Cross reference number
Zexel num
Bosch num
Firm num
Name
9 460 614 898
8972882684 ISUZU
INJECTION-PUMP ASSEMBLY
4JA1-L * K 11CJ INJECTION PUMP ASSY VE4 VE
4JA1-L * K 11CJ INJECTION PUMP ASSY VE4 VE
Information:
Engine Runs Smoothly
Possible Causes/Corrections
Dirty Air CleanerIf the air cleaner has a restriction indicator, see if the red piston is in view. If there is no restriction indicator, restriction can be checked with a water manometer or a vacuum gauge (which measures in inches of water). Make a connection to the piping between the air cleaner and the inlet of the turbocharger. Check with the engine running at full load rpm. Maximum restriction is 635 mm (25 in) of water. If a gauge is not available, visually check the air cleaner element for dirt. If the element is dirty, clean the element or install a new element. Air Inlet Piping Damage Or RestrictionMake a visual inspection of the air inlet system and check for damage to piping, rags in the inlet piping, or damage to the rain cap or the cap pushed too far on the inlet pipe. If no damage is seen, check inlet restriction with a clean air cleaner element. Exhaust System RestrictionMake a visual inspection of the exhaust system. Check for damage to piping or for a defective muffler. If no damage is found, you can check the system by checking the back pressure from the exhaust (pressure difference measurement between exhaust outlet and atmosphere). The back pressure must not be more than 1016 mm (40 in) of water. You can also check by removing the exhaust pipes from the exhaust manifolds. With the exhaust pipes removed, start and load the engine on a chassis dynamometer to see if the problem is corrected. Fuel Injection Timing Not CorrectCheck and make necessary adjustments as in Testing and Adjusting Section of this Service Manual. Fuel Setting Is Not CorrectCheck and make necessary adjustments as in Testing and Adjusting Section of this Service Manual. See the Fuel Setting And Related Information Fiche for the correct fuel setting. Low Quality FuelTest the engine with fuel according to recommendations by Caterpillar Inc. For more information see Special Instruction, Form No. SEHS7067, Fuel Recommendations For Caterpillar Diesel Engines. Also, Special Instruction, Form No. SEHS6947 has fuel correction factors and tables. Defective Fuel Nozzle(s)Defective fuel nozzles will normally cause the engine to misfire and run rough, but can cause too much smoke with engine still running smooth. Remove the fuel nozzles and test as in Testing and Adjusting Section of this Service Manual. Wrong Seal Washer Installed Under Nozzle(s)The use of incorrect washers change the location of the fuel injection nozzles in the combustion chamber. This effects smoke. Check the Engine Arrangement for the correct part number to use. Valve Adjustment Not Correct Or Valve LeakageCheck and make necessary adjustments as in Testing and Adjusting Section of this Service Manual. Intake valve lash is 0.38 mm (.015 in) and exhaust valve lash is 0.64 mm (.025 in). Valve leakage normally causes the engine to misfire and run rough. Defective Fuel Injection PumpAn injection pump can have a good fuel flow coming from it but cause rough running because of slow timing that is
Possible Causes/Corrections
Dirty Air CleanerIf the air cleaner has a restriction indicator, see if the red piston is in view. If there is no restriction indicator, restriction can be checked with a water manometer or a vacuum gauge (which measures in inches of water). Make a connection to the piping between the air cleaner and the inlet of the turbocharger. Check with the engine running at full load rpm. Maximum restriction is 635 mm (25 in) of water. If a gauge is not available, visually check the air cleaner element for dirt. If the element is dirty, clean the element or install a new element. Air Inlet Piping Damage Or RestrictionMake a visual inspection of the air inlet system and check for damage to piping, rags in the inlet piping, or damage to the rain cap or the cap pushed too far on the inlet pipe. If no damage is seen, check inlet restriction with a clean air cleaner element. Exhaust System RestrictionMake a visual inspection of the exhaust system. Check for damage to piping or for a defective muffler. If no damage is found, you can check the system by checking the back pressure from the exhaust (pressure difference measurement between exhaust outlet and atmosphere). The back pressure must not be more than 1016 mm (40 in) of water. You can also check by removing the exhaust pipes from the exhaust manifolds. With the exhaust pipes removed, start and load the engine on a chassis dynamometer to see if the problem is corrected. Fuel Injection Timing Not CorrectCheck and make necessary adjustments as in Testing and Adjusting Section of this Service Manual. Fuel Setting Is Not CorrectCheck and make necessary adjustments as in Testing and Adjusting Section of this Service Manual. See the Fuel Setting And Related Information Fiche for the correct fuel setting. Low Quality FuelTest the engine with fuel according to recommendations by Caterpillar Inc. For more information see Special Instruction, Form No. SEHS7067, Fuel Recommendations For Caterpillar Diesel Engines. Also, Special Instruction, Form No. SEHS6947 has fuel correction factors and tables. Defective Fuel Nozzle(s)Defective fuel nozzles will normally cause the engine to misfire and run rough, but can cause too much smoke with engine still running smooth. Remove the fuel nozzles and test as in Testing and Adjusting Section of this Service Manual. Wrong Seal Washer Installed Under Nozzle(s)The use of incorrect washers change the location of the fuel injection nozzles in the combustion chamber. This effects smoke. Check the Engine Arrangement for the correct part number to use. Valve Adjustment Not Correct Or Valve LeakageCheck and make necessary adjustments as in Testing and Adjusting Section of this Service Manual. Intake valve lash is 0.38 mm (.015 in) and exhaust valve lash is 0.64 mm (.025 in). Valve leakage normally causes the engine to misfire and run rough. Defective Fuel Injection PumpAn injection pump can have a good fuel flow coming from it but cause rough running because of slow timing that is