Information injection-pump assembly
BOSCH
9 460 610 356
9460610356
ZEXEL
104741-1771
1047411771
ISUZU
8944710531
8944710531

Rating:
Components :
0. | INJECTION-PUMP ASSEMBLY | 104741-1771 |
1. | _ | |
2. | FUEL INJECTION PUMP | 104641-1771 |
3. | NUMBER PLATE | 146907-6000 |
4. | _ | |
5. | CAPSULE | 146620-0120 |
6. | ADJUSTING DEVICE | |
7. | NOZZLE AND HOLDER ASSY | 105118-4075 |
8. | Nozzle and Holder | |
9. | Open Pre:MPa(Kqf/cm2) | 18.1{185} |
10. | NOZZLE-HOLDER | 105048-3890 |
11. | NOZZLE | 105017-1550 |
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] | 146220-0620 | CAM PLATE |
30. | [1] | 146600-0800 | O-RING |
31. | [1] | 146300-0300 | PUMP PLUNGER |
32. | [1] | 146301-0000 | SLIDING PIECE |
33. | [1] | 146603-0700 | SHIM D17.5&7.5T0.60 |
34. | [1] | 146302-1900 | COMPRESSION SPRING K=2.25KG/MM |
34B. | [1] | 146302-1800 | COMPRESSION SPRING K=2.25KG/MM |
34C. | [1] | 146302-2600 | COMPRESSION SPRING K=2.05KG/MM |
34D. | [1] | 146302-2500 | COMPRESSION SPRING K=2.05KG/MM |
34E. | [1] | 146302-2800 | COMPRESSION SPRING K=2.50KG/MM |
34F. | [1] | 146302-2700 | COMPRESSION SPRING K=2.50KG/MM |
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] | 146310-0700 | 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] | 146402-0920 | HYDRAULIC HEAD |
50. | [1] | 146402-0920 | HYDRAULIC HEAD |
50. | [1] | 146402-0920 | 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] | 146430-1420 | DELIVERY-VALVE ASSEMBLY |
56. | [4] | 146432-0200 | COMPRESSION SPRING |
57. | [4] | 146602-2300 | FILLER PIECE |
58. | [4] | 146440-0600 | FITTING |
60. | [4] | 139106-0100 | FLAT-HEAD SCREW |
67. | [1] | 146500-7022 | GOVERNOR COVER |
67/1. | [1] | 146508-3221 | GOVERNOR COVER |
67/2. | [1] | 146515-0220 | CONTROL SHAFT |
67/3. | [1] | 146600-0100 | O-RING |
67/4. | [1] | 139310-0200 | PLAIN WASHER |
67/5. | [1] | 146535-1901 | CONTROL LEVER |
67/5B. | [1] | 146535-2001 | CONTROL LEVER |
67/6. | [1] | 014110-6440 | LOCKING WASHER |
67/7. | [1] | 013020-6040 | UNION NUT M6P1H5 |
67/13. | [1] | 146621-1700 | UNION NUT |
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] | 146626-6000 | BRACKET |
67/24. | [2] | 139006-4800 | BLEEDER SCREW |
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] | 146565-3520 | 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] | 146602-0500 | PLAIN WASHER D17&6.4T1.60 |
115. | [1] | 146975-2500 | SLIDING SLEEVE |
116. | [1] | 146576-0000 | SEALING 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] | 146579-1020 | RETAINING PIN |
122. | [1] | 146580-1000 | GOVERNOR SPRING |
123. | [4] | 139106-0200 | FLAT-HEAD SCREW |
130. | [1] | 146421-0320 | CAPSULE |
130/2. | [1] | 026508-1140 | GASKET D11.4&8.2T1 |
130/3. | [1] | 146422-0300 | BLEEDER SCREW |
130/4. | [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] | 146650-8520 | PULLING ELECTROMAGNET |
137. | [1] | 139514-0200 | GASKET |
145. | [1] | 146621-1000 | UNION NUT |
160. | [1] | 146625-8020 | PLATE |
200. | [1] | 146206-0100 | COILED SPRING |
205. | [1] | 025804-1610 | WOODRUFF KEY |
206. | [1] | 013121-4140 | UNION NUT M14P1.5H11 |
207. | [1] | 029321-4050 | LOCKING WASHER |
233. | [1] | 146658-8920 | WIRE |
240. | [1] | 146650-1220 | PULLING ELECTROMAGNET |
240/8. | [1] | 146600-1700 | O-RING |
242. | [1] | 146658-7320 | WIRE |
243. | [1] | 146621-1000 | UNION NUT |
245. | [3] | 139512-0500 | GASKET |
246. | [1] | 146125-0000 | EYE BOLT |
247. | [1] | 146608-5321 | INLET UNION |
247. | [1] | 146608-5321 | INLET UNION |
248. | [1] | 146614-0200 | SPACER BUSHING |
260. | [1] | 146611-0720 | BRACKET |
261. | [2] | 146621-4700 | UNION NUT |
264. | [1] | 016500-5010 | O-RING |
270. | [1] | 146615-2621 | TOOTHED GEAR |
270/1. | [1] | 146615-2600 | TOOTHED GEAR |
270/2. | [1] | 146615-0201 | COUPLING PLATE |
270/3. | [6] | 020006-1870 | BLEEDER SCREW M6P1L18 7T |
800S. | [1] | 146009-5820 | PUMP HOUSING |
800S/1/6. | [1] | 146601-0700 | PACKING RING |
804S. | [1] | 146232-0320 | COMPRESSION SPRING |
805S. | [1] | 146574-0120 | 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] | 146620-0120 | CAPSULE |
903/2. | [1] | 146600-1300 | O-RING &13W1.9 |
906. | [1] | 146907-6000 | NAMEPLATE |
Include in #2:
104741-1771
as INJECTION-PUMP ASSEMBLY
Cross reference number
Zexel num
Bosch num
Firm num
Name
104741-1771
9 460 610 356
8944710531 ISUZU
INJECTION-PUMP ASSEMBLY
4JA1AG * K 11CJ VE4 VE
4JA1AG * K 11CJ VE4 VE
Information:
Fuel Tank Drain
Fuel tank drains are used to drain water and sediment from the fuel tank daily. The drain must be located on the lowest part of the fuel tank where the containments collect.Note: Daily draining of water and sediment from the fuel tank has been a standard maintenance requirement for decades.Advanced Tank Breather Filter
Preventing short fuel system life by keeping dust from entering the fuel tank.Water Separators
Water separators are required to remove large quantities of latent water from the fuel.Primary Fuel Filters
Primary fuel filters are required to remove large abrasives from the fuel supply and prevent premature clogging of the 4-micron secondary filters from excessive debris.Secondary Fuel Filters
Series filtration more than doubles wear life over single filtration.Electronic Unit Injectors (EUI)
An adequate fuel supply pressure is essential to prevent cavitation of internal injector components due to incomplete fuel fill.Major Factors Which Negatively Affect Fuel System Wear
Abrasive Contaminants
Increased injection pressure acting on the same level of abrasive contaminants in the fuel results in accelerated injector abrasive wear. This abrasive wear cannot be eliminated by using improved materials or processes. Abrasive wear only can be reduced by removing abrasives from the fuel. Solution
Single or series High Efficiency fuel filters and/or bulk fuel filter/water coalescer.Water in Fuel
An excessive amount of latent water in the fuel is a key cause of injector failure. Water has inadequate film strength to prevent metal-to-metal contact between the plunger and barrel, resulting in plunger scuffing or seizure. Water can be effectively by the use and regular maintenance of a water separator or bulk fuel filter/water coalescer. Removal of excess latent water is essential to prevent scuffing with the upcoming injection pressure increases and subsequent hydraulic loading of internal injector parts.Solution
Proper maintenance of fuel tank drains, water separators and/or use of a bulk fuel filter/water coalescer.Excessive Fuel Temperature
Increasing fuel temperatures reduces fuel viscosity and resultant fuel film strength. Reduced film strength increases the probability of injector plunger and barrel scuffing or seizure. Limiting the maximum fuel temperature will become even more critical with the increase of use if low sulfur fuel which has a lower film strength and common rail fuel systems which run elevated fuel temperatures. Fuel temperatures also play in diesel and biodiesel fuel degradation.Solution
Properly maintain fuel filters and fuel coolers where needed. Ensure proper consideration for materials used in fuel coolers as zinc, copper, lead, and tin can have adverse effects on fuel degradation.Customer Maintenance Practices
Fuel system performance, sophistication, and complexity continue to increase at a rapid pace. It is more important than ever for the user to maintain fuel filters in order to prevent filter restriction and the problems caused by low fuel pressure. It is also important to use quality Advanced Efficiency filters in order to trap and hold microscopic abrasive debris, which causes accelerated wear in modern fuel systems.C7 and C9 HEUI Fuel System Diagram
Note: The following illustration identifies components that may be included in many different arrangements. Refer to the Service Information System (SIS) for the correct components for the
Fuel tank drains are used to drain water and sediment from the fuel tank daily. The drain must be located on the lowest part of the fuel tank where the containments collect.Note: Daily draining of water and sediment from the fuel tank has been a standard maintenance requirement for decades.Advanced Tank Breather Filter
Preventing short fuel system life by keeping dust from entering the fuel tank.Water Separators
Water separators are required to remove large quantities of latent water from the fuel.Primary Fuel Filters
Primary fuel filters are required to remove large abrasives from the fuel supply and prevent premature clogging of the 4-micron secondary filters from excessive debris.Secondary Fuel Filters
Series filtration more than doubles wear life over single filtration.Electronic Unit Injectors (EUI)
An adequate fuel supply pressure is essential to prevent cavitation of internal injector components due to incomplete fuel fill.Major Factors Which Negatively Affect Fuel System Wear
Abrasive Contaminants
Increased injection pressure acting on the same level of abrasive contaminants in the fuel results in accelerated injector abrasive wear. This abrasive wear cannot be eliminated by using improved materials or processes. Abrasive wear only can be reduced by removing abrasives from the fuel. Solution
Single or series High Efficiency fuel filters and/or bulk fuel filter/water coalescer.Water in Fuel
An excessive amount of latent water in the fuel is a key cause of injector failure. Water has inadequate film strength to prevent metal-to-metal contact between the plunger and barrel, resulting in plunger scuffing or seizure. Water can be effectively by the use and regular maintenance of a water separator or bulk fuel filter/water coalescer. Removal of excess latent water is essential to prevent scuffing with the upcoming injection pressure increases and subsequent hydraulic loading of internal injector parts.Solution
Proper maintenance of fuel tank drains, water separators and/or use of a bulk fuel filter/water coalescer.Excessive Fuel Temperature
Increasing fuel temperatures reduces fuel viscosity and resultant fuel film strength. Reduced film strength increases the probability of injector plunger and barrel scuffing or seizure. Limiting the maximum fuel temperature will become even more critical with the increase of use if low sulfur fuel which has a lower film strength and common rail fuel systems which run elevated fuel temperatures. Fuel temperatures also play in diesel and biodiesel fuel degradation.Solution
Properly maintain fuel filters and fuel coolers where needed. Ensure proper consideration for materials used in fuel coolers as zinc, copper, lead, and tin can have adverse effects on fuel degradation.Customer Maintenance Practices
Fuel system performance, sophistication, and complexity continue to increase at a rapid pace. It is more important than ever for the user to maintain fuel filters in order to prevent filter restriction and the problems caused by low fuel pressure. It is also important to use quality Advanced Efficiency filters in order to trap and hold microscopic abrasive debris, which causes accelerated wear in modern fuel systems.C7 and C9 HEUI Fuel System Diagram
Note: The following illustration identifies components that may be included in many different arrangements. Refer to the Service Information System (SIS) for the correct components for the
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