104700-9070 ZEXEL 9 460 613 910 BOSCH INJECTION-PUMP ASSEMBLY 9460613910 1047009070

Information Cross number Calibration Data Calibration Data Ex

Information injection-pump assembly

BOSCH 9 460 613 910 9460613910

ZEXEL 104700-9070 1047009070

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Components :

0.	INJECTION-PUMP ASSEMBLY	104700-9070
1.	_
2.	FUEL INJECTION PUMP	104600-9070
3.	NUMBER PLATE	148643-0700
4.	_
5.	CAPSULE
6.	ADJUSTING DEVICE
7.	NOZZLE AND HOLDER ASSY
8.	Nozzle and Holder
9.	Open Pre:MPa(Kqf/cm2)
10.	NOZZLE-HOLDER
11.	NOZZLE

Scheme ###:

1/6.	[1]	146601-0700	PACKING RING
6.	[1]	146100-0120	SUPPLY PUMP
9.	[1]	148103-0400	COVER
10.	[2]	139104-0000	FLAT-HEAD SCREW
12.	[1]	148200-0520	DRIVE SHAFT
12/1.	[1]	148200-0000	DRIVE SHAFT
12/3.	[1]	146201-0000	WOODRUFF KEY
17.	[1]	146204-0000	PLAIN WASHER
20.	[1]	148210-0120	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]	146220-2120	CAM PLATE
30.	[1]	146600-0800	O-RING
31.	[1]	146300-1900	PUMP PLUNGER
32.	[1]	146301-0000	SLIDING PIECE
33.	[1]	146603-1100	SHIM D17.5&7.5T1.20
34.	[1]	146306-1800	COMPRESSION SPRING
34B.	[1]	146306-2100	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]	479765-7720	TIMER PISTON SENSOR
38.	[2]	010206-2040	HEX-SOCKET-HEAD CAP 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 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]	146234-0500	GUIDE PIN
50.	[1]	146403-9620	HYDRAULIC HEAD
50.	[1]	146403-9620	HYDRAULIC HEAD
50.	[1]	146403-9620	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]	146430-0320	DELIVERY-VALVE ASSEMBLY
56.	[4]	146432-0000	COMPRESSION SPRING
58.	[4]	146440-0320	FITTING
60.	[3]	139106-0100	FLAT-HEAD SCREW
123.	[1]	146620-8800	FLAT-HEAD SCREW
130.	[1]	146421-1020	CAPSULE
130/2.	[1]	139508-0200	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]	146110-3220	CONTROL VALVE
135/5.	[1]	146114-0000	SPRING WASHER
136.	[1]	148120-0020	OVER FLOW VALVE
137.	[3]	139512-0500	GASKET
138.	[1]	146669-5821	INLET UNION
158.	[1]	146614-6900	SPACER BUSHING
200.	[1]	146206-0100	COILED SPRING
205.	[1]	029470-4030	WOODRUFF KEY
230.	[1]	148613-6620	BRACKET
236.	[1]	146620-2700	HEX-SOCKET-HEAD CAP SCREW
237.	[1]	146620-0200	HEX-SOCKET-HEAD CAP SCREW
240.	[1]	146688-0120	PULLING ELECTROMAGNET
240/8.	[1]	146600-1700	O-RING
243.	[1]	146621-1000	UNION NUT
245.	[3]	139512-0500	GASKET
246.	[1]	146125-0600	EYE BOLT
247.	[1]	146669-6821	INLET UNION
248.	[1]	146614-0200	SPACER BUSHING
275.	[1]	148612-1600	BRACKET
276.	[2]	010010-2840	BLEEDER SCREW
278.	[2]	146616-8501	SPACER BUSHING
282.	[1]	139006-4600	BLEEDER SCREW
504/1.	[1]	146649-4500	RESISTER
504/1.	[1]	146649-4600	RESISTER
504/1.	[1]	146649-4700	RESISTER
504/1.	[1]	146649-4800	RESISTER
504/1.	[1]	146649-4900	RESISTER
504/1.	[1]	146649-5000	RESISTER
504/1.	[1]	146649-5100	RESISTER
504/1.	[1]	146649-5200	RESISTER
504/1.	[1]	146649-5300	RESISTER
504/1.	[1]	146649-5400	RESISTER
504/1.	[1]	146649-5500	RESISTER
504/1.	[1]	146649-5600	RESISTER
504/1.	[1]	146649-5700	RESISTER
505.	[1]	148530-3720	GOVERNOR;ELECTRIC
506.	[3]	146620-8900	FLAT-HEAD SCREW
515.	[1]	106144-1071	TIMING CONTROL VALVE
515/7.	[1]	161440-3800	O-RING
515/8.	[1]	161440-3700	O-RING
516.	[2]	010206-1440	HEX-SOCKET-HEAD CAP SCREW M6P1L14
531.	[1]	479765-7420	PULSE GENERATOR
800S.	[1]	148009-0620	PUMP HOUSING
800S/1/6.	[1]	146601-0900	PACKING RING
804S.	[1]	146232-0220	COMPRESSION SPRING
810S.	[1]	146600-4620	REPAIR SET
821S.	[1]	146210-5720	ROLLER SET
878S.	[1]	148600-1300	SEAL RING
906.	[1]	148643-0700	NAMEPLATE

Include in #2:

104700-9070 as INJECTION-PUMP ASSEMBLY

Cross reference number

BOSCH 9 460 613 910 9460613910

ZEXEL 104700-9070 1047009070

Zexel num

Bosch num

Firm num

Name

104700-9070
104700-9071

9 460 613 910

INJECTION-PUMP ASSEMBLY
* K

Calibration Data:

Adjustment conditions

Test oil
1404 Test oil ISO4113orSAEJ967d

Test oil temperature degC 45 45 50

Nozzle 105780-0060

Bosch type code NP-DN0SD1510

Nozzle holder 105780-2150

Opening pressure MPa 13 13 13.3

Opening pressure kgf/cm2 133 133 136

Injection pipe 157805-7320

Injection pipe
Inside diameter - outside diameter - length (mm) mm 2-6-450

Joint assembly 157641-4720

Tube assembly 157641-4020

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

Governor adjustment

Pump speed r/min 1000 1000 1000

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Pump chamber pressure kPa 598.5 569 628

Pump chamber pressure kgf/cm2 6.1 5.8 6.4

Basic *

Governor adjustment_02

Pump speed r/min 100 100 100

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Pump chamber pressure kPa 294 294

Pump chamber pressure kgf/cm2 3 3

Governor adjustment_03

Pump speed r/min 1000 1000 1000

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Pump chamber pressure kPa 598.5 559 638

Pump chamber pressure kgf/cm2 6.1 5.7 6.5

Governor adjustment_04

Pump speed r/min 2000 2000 2000

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Pump chamber pressure kPa 736 687 785

Pump chamber pressure kgf/cm2 7.5 7 8

Boost compensator adjustment

Pump speed r/min 1000 1000 1000

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Timer stroke mm 7.7 7.5 7.9

Basic *

Boost compensator adjustment_02

Pump speed r/min 100 100 100

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Timer stroke mm 1.8 0.3 3.3

Boost compensator adjustment_03

Pump speed r/min 350 350 350

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Timer stroke mm 5.2 3.1 7.3

Boost compensator adjustment_04

Pump speed r/min 1000 1000 1000

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Timer stroke mm 7.7 7.4 8

Boost compensator adjustment_05

Pump speed r/min 1000 1000 1000

TCV duty (%) F TCV 60Hz % 70 70 70

U alpha soll V 2.7 2.7 2.7

Timer stroke mm 4 1.9 6.1

Boost compensator adjustment_06

Pump speed r/min 2000 2000 2000

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Timer stroke mm 9.75 9.3 10.2

Boost compensator adjustment_07

Pump speed r/min 2000 2000 2000

TCV duty (%) F TCV 60Hz % 0 0 0

U alpha soll V 2.7 2.7 2.7

Timer stroke mm 0 0 0

Timer adjustment

Pump speed r/min 1000 1000 1000

TCV duty (%) F TCV 60Hz % 0 0 0

U alpha soll V 2.7 2.7 2.7

Vtps V 0.51 0.382 0.638

Basic *

Timer adjustment_02

Pump speed r/min 1000 1000 1000

TCV duty (%) F TCV 60Hz % 0 0 0

U alpha soll V 2.7 2.7 2.7

Vtps V 0.51 0.382 0.638

Timer adjustment_03

Pump speed r/min 1000 1000 1000

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Vtps V 1.925 1.702 2.148

Speed control lever angle

Pump speed r/min 1000 1000 1000

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Overflow quantity cm3/min 550 420 680

0000000901

Pump speed r/min 1250 1250 1250

U alpha soll + dU alpha soll V 2.86 2.86 2.86

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 72 71 73

Difference in delivery mm3/st. 3.5

Basic *

_02

Pump speed r/min 375 375 375

U alpha soll + dU alpha soll V 2 2 2

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 14.8 11.8 17.8

Difference in delivery mm3/st. 2.5

Basic *

Remarks
Confirmation of difference in delivery

_03

Pump speed r/min 2575 2575 2575

U alpha soll + dU alpha soll V 1.96 1.96 1.96

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 20.3 17.8 22.8

Difference in delivery mm3/st. 5.5

Basic *

Remarks
Confirmation of difference in delivery

_04

Pump speed r/min 100 100 100

U alpha soll + dU alpha soll V 3.31 3.31 3.31

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 67.9 57.9 77.9

_05

Pump speed r/min 375 375 375

U alpha soll + dU alpha soll V 2 2 2

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 14.8 11.8 17.8

_06

Pump speed r/min 500 500 500

U alpha soll + dU alpha soll V 2.74 2.74 2.74

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 51.2 48.7 53.7

_07

Pump speed r/min 750 750 750

U alpha soll + dU alpha soll V 2.83 2.83 2.83

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 63.1 60.6 65.6

_08

Pump speed r/min 1000 1000 1000

U alpha soll + dU alpha soll V 2.87 2.87 2.87

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 70.4 67.9 72.9

_09

Pump speed r/min 1250 1250 1250

U alpha soll + dU alpha soll V 2.86 2.86 2.86

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 72 71 73

_10

Pump speed r/min 1500 1500 1500

U alpha soll + dU alpha soll V 2.82 2.82 2.82

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 68.6 66.1 71.1

_11

Pump speed r/min 1750 1750 1750

U alpha soll + dU alpha soll V 2.8 2.8 2.8

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 65.5 63 68

_12

Pump speed r/min 1900 1900 1900

U alpha soll + dU alpha soll V 2.77 2.77 2.77

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 63.8 61.3 66.3

_13

Pump speed r/min 2575 2575 2575

U alpha soll + dU alpha soll V 1.96 1.96 1.96

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 20.3 17.8 22.8

_14

Pump speed r/min 2575 2575 2575

U alpha soll + dU alpha soll V 1 1 1

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity mm3/st. 3

Stop lever angle

Pump speed r/min 1900 1900 1900

U alpha soll + dU alpha soll V 2.77 2.77 2.77

TCV duty (%) F TCV 60Hz % 100 100 100

Average injection quantity cm3/min 0 0 0

0000001101

Pump speed r/min 200 200 200

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.7 2.7 2.7

Speed output
N=Measure the actual speed. r/min N+-8

0000001201

Pump speed r/min 1250 1250 1250

TCV duty (%) F TCV 60Hz % 100 100 100

U alpha soll V 2.73 2.73 2.73

Temperature output
Measure T = actual output temperature degC T+-5

0000001301

Max. applied voltage V 8 8 8

Test voltage V 13 12 14

0000001401

K dimension mm 3.3 3.2 3.4

KF dimension mm 5.8 5.7 5.9

Pre-stroke mm 0.1 0.08 0.12

Test data Ex:

Injection timing adjustment Comp. resistor/voltage

Compensation resistance/compensation voltage comparison A = Compensation resistor number B= Compensation resistance C = Compensation voltage delta U alpha soll
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0000001601 HARNESS & CONNECTOR

TCV connector assembly specification (1)Ensure the GE cable is not twisted at section A. (2)Refer to the figure for the direction of connector clip B. (3)Route the TCV harness in the direction indicated by the arrows in the figure and install the connector C.
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0000001701 HARNESS & CONNECTOR

F.C.V. harness assembly specifications (1)Route the F.C.V. harness under the G.E. cable at assembly. (2)Refer to connector and clip assembly standards for harness routing and the fixing of clips. A:Route the F.C.V. harness under the G.E. cable. B:Connector installation bracket
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a=75deg

0000001801 HARNESS & CONNECTOR

Connector and binder assembly specification (1)For D's connector, adjust the position of the protective tube to L1 and install. (2)Assemble the connectors and clips in the order A, B, C, D, E, F, G and H. (3)Fix the GE cable and the FCV cable using the binder C. (4)Clip the GE cable, the F.C.V., the T.P.S. P/U and the T.P.S harnesses using clip G. A:Push type clip B:F.C.V. harness C:Clip (be careful of installation direction) D:G.E. Connector E:Q adjustment connector F:P/U Connector G:T.P.S. Connector H:Binder I:Protective tube
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L1=5~15mm

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