104741-4340 ZEXEL 9 460 611 939 BOSCH INJECTION-PUMP ASSEMBLY 9460611939 1047414340 1670087g04

Information Cross number Calibration Data Calibration Data Ex

Information injection-pump assembly

BOSCH 9 460 611 939 9460611939

ZEXEL 104741-4340 1047414340

NISSAN-DIESEL 1670087G04 1670087g04

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Buy INJECTION-PUMP ASSEMBLY 104741-4340 zexel genuine, new aftermarket engine parts with delivery

Components :

0.	INJECTION-PUMP ASSEMBLY	104741-4340
1.	_
2.	FUEL INJECTION PUMP	104641-4340
3.	NUMBER PLATE	146958-6200
4.	_
5.	CAPSULE
6.	ADJUSTING DEVICE
7.	NOZZLE AND HOLDER ASSY	105118-5800
8.	Nozzle and Holder	16600-87G11
9.	Open Pre:MPa(Kqf/cm2)	19.6{200}
10.	NOZZLE-HOLDER	105048-3750
11.	NOZZLE	105017-1650

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]	146220-0420	CAM PLATE
30.	[1]	146600-0800	O-RING
31.	[1]	146300-0600	PUMP PLUNGER
32.	[1]	146301-0000	SLIDING PIECE
33.	[1]	146603-0700	SHIM D17.5&7.5T0.60
34.	[1]	146302-4200	COMPRESSION SPRING
34B.	[1]	146302-4800	COMPRESSION SPRING
34C.	[1]	146302-1900	COMPRESSION SPRING K=2.25KG/MM
34D.	[1]	146302-5400	COMPRESSION SPRING
36.	[1]	146600-0800	O-RING
37.	[1]	146310-1721	COVER
38.	[2]	146620-5000	BLEEDER SCREW
39.	[1]	146310-0901	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]	146234-0600	GUIDE PIN
50.	[1]	146402-2520	HYDRAULIC HEAD
50.	[1]	146402-2520	HYDRAULIC HEAD
50.	[1]	146402-2520	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.	[3]	139106-0100	FLAT-HEAD SCREW
67.	[1]	146820-6820	GOVERNOR COVER
67/1.	[1]	146508-7721	GOVERNOR COVER
67/2.	[1]	146515-3620	CONTROL SHAFT
67/3.	[1]	146600-0100	O-RING
67/4.	[1]	139310-0200	PLAIN WASHER
67/5.	[1]	146537-6120	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]	146526-3400	BLEEDER SCREW
67/16.	[1]	146526-3400	BLEEDER SCREW
67/18.	[1]	146587-8000	COILED SPRING
67/19.	[1]	146541-3000	BUSHING
67/21.	[1]	146587-9900	COILED SPRING
67/22.	[1]	146541-3100	SLOTTED WASHER
67/78.	[1]	146600-4400	SEAL RING
67/89.	[1]	146541-4900	PLAIN WASHER D20&10T0.5
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]	146865-1120	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]	146575-2000	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]	146579-1520	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]	146110-3020	CONTROL VALVE
135/5.	[1]	146114-0000	SPRING WASHER
136.	[1]	146120-1720	OVER FLOW VALVE
136B.	[1]	146120-1320	OVER FLOW VALVE
136C.	[1]	146120-1620	OVER FLOW VALVE
137.	[2]	139514-0200	GASKET
147.	[1]	146600-5000	O-RING
200.	[1]	146206-0100	COILED SPRING
221.	[1]	146925-2622	BRACKET
222.	[2]	139006-4600	BLEEDER SCREW
230.	[1]	146926-4120	BRACKET
231.	[1]	139006-4600	BLEEDER SCREW
236.	[1]	139006-4800	BLEEDER SCREW
237.	[1]	146620-0200	HEX-SOCKET-HEAD CAP SCREW
240.	[1]	146650-0720	PULLING ELECTROMAGNET
240/8.	[1]	146600-1700	O-RING
242.	[1]	146658-6120	WIRE
243.	[1]	146621-1000	UNION NUT
244.	[1]	020118-1440	BLEEDER SCREW
245.	[2]	139512-0500	GASKET
246.	[1]	027412-2440	EYE BOLT
247.	[1]	146608-3420	PIPE
251.	[1]	014010-8140	PLAIN WASHER D18&8.5T1.6
800S.	[1]	146019-8020	PUMP HOUSING
800S/1/6.	[1]	146601-0700	PACKING RING
804S.	[1]	146232-0720	COMPRESSION SPRING
805S.	[1]	146574-0120	PARTS SET
810S.	[1]	146600-1120	REPAIR SET
813S.	[1]	146600-3120	PARTS 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
906.	[1]	146958-6200	NAMEPLATE

Include in #2:

104741-4340 as INJECTION-PUMP ASSEMBLY

Cross reference number

BOSCH 9 460 611 939 9460611939

ZEXEL 104741-4340 1047414340

NISSAN-DIESEL 1670087G04 1670087g04

Zexel num

Bosch num

Firm num

Name

104741-4340

9 460 611 939

1670087G04 NISSAN-DIESEL

INJECTION-PUMP ASSEMBLY
BD3 * 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

Injection timing adjustment

Pump speed r/min 1000 1000 1000

Average injection quantity mm3/st. 43.6 43.1 44.1

Difference in delivery mm3/st. 4.5

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 22.5 30.5

Oil temperature degC 48 46 50

Injection timing adjustment_03

Pump speed r/min 800 800 800

Average injection quantity mm3/st. 34.5 31 38

Oil temperature degC 50 48 52

Injection timing adjustment_04

Pump speed r/min 1000 1000 1000

Average injection quantity mm3/st. 43.6 42.6 44.6

Difference in delivery mm3/st. 5

Basic *

Oil temperature degC 50 48 52

Injection timing adjustment_05

Pump speed r/min 1200 1200 1200

Average injection quantity mm3/st. 45.9 43.4 48.4

Oil temperature degC 50 48 52

Injection timing adjustment_06

Pump speed r/min 1600 1600 1600

Average injection quantity mm3/st. 49.2 45.7 52.7

Oil temperature degC 50 48 52

Injection timing adjustment_07

Pump speed r/min 2000 2000 2000

Average injection quantity mm3/st. 47.9 43.4 52.4

Oil temperature degC 50 48 52

Injection quantity adjustment

Pump speed r/min 2250 2250 2250

Average injection quantity mm3/st. 16.8 14.8 18.8

Difference in delivery mm3/st. 5.5

Basic *

Oil temperature degC 52 50 54

Injection quantity adjustment_02

Pump speed r/min 2500 2500 2500

Average injection quantity mm3/st. 5

Oil temperature degC 55 52 58

Injection quantity adjustment_03

Pump speed r/min 2250 2250 2250

Average injection quantity mm3/st. 16.8 14.3 19.3

Difference in delivery mm3/st. 6

Basic *

Oil temperature degC 52 50 54

Governor adjustment

Pump speed r/min 350 350 350

Average injection quantity mm3/st. 12 10 14

Difference in delivery mm3/st. 2

Basic *

Oil temperature degC 48 46 50

Governor adjustment_02

Pump speed r/min 350 350 350

Average injection quantity mm3/st. 12 9.5 14.5

Difference in delivery mm3/st. 2.5

Basic *

Oil temperature degC 48 46 50

Timer adjustment

Pump speed r/min 100 100 100

Average injection quantity mm3/st. 60 50 80

Basic *

Oil temperature degC 48 46 50

Remarks
Full

Timer adjustment_02

Pump speed r/min 100 100 100

Average injection quantity mm3/st. 60 50 80

Oil temperature degC 48 46 50

Remarks
Full

Speed control lever angle

Pump speed r/min 350 350 350

Average injection quantity mm3/st. 0 0 0

Oil temperature degC 48 46 50

Remarks
Magnet OFF at idling position

Speed control lever angle_02

Pump speed r/min 250 250 250

Average injection quantity mm3/st. 5

Oil temperature degC 48 46 50

Remarks
Magnet OFF at full-load position

0000000901

Pump speed r/min 1125 1125 1125

Overflow quantity cm3/min 380 250 510

Oil temperature degC 50 48 52

Stop lever angle

Pump speed r/min 1125 1125 1125

Pressure kPa 363 334 392

Pressure kgf/cm2 3.7 3.4 4

Basic *

Oil temperature degC 50 48 52

Stop lever angle_02

Pump speed r/min 1125 1125 1125

Pressure kPa 363 324 402

Pressure kgf/cm2 3.7 3.3 4.1

Oil temperature degC 50 48 52

Stop lever angle_03

Pump speed r/min 1600 1600 1600

Pressure kPa 461 383 520

Pressure kgf/cm2 4.7 3.9 5.3

Basic *

Oil temperature degC 50 48 52

0000001101

Pump speed r/min 1600 1600 1600

Timer stroke mm 3.4 3.2 3.6

Basic *

Oil temperature degC 50 48 52

_02

Pump speed r/min 1000 1000 1000

Timer stroke mm 0.8 0.3 1.3

Basic *

Oil temperature degC 50 48 52

_03

Pump speed r/min 1125 1125 1125

Timer stroke mm 1.1 0.7 1.7

Oil temperature degC 50 48 52

_04

Pump speed r/min 1600 1600 1600

Timer stroke mm 3.4 3 3.8

Basic *

Oil temperature degC 50 48 52

_05

Pump speed r/min 2000 2000 2000

Timer stroke mm 8.2 7.3 8.6

Oil temperature degC 50 48 52

0000001201

Max. applied voltage V 8 8 8

Test voltage V 13 12 14

Timing setting

K dimension mm 2.8 2.7 2.9

KF dimension mm 5.5 5.4 5.6

MS dimension mm 0.7 0.6 0.8

Pre-stroke mm 0.45 0.43 0.47

Control lever angle alpha deg. 25 23 27

Control lever angle beta deg. 38 33 43

Test data Ex:

0000001801 SUPPLY PUMP-TIMING DEVICE ADJ

Pump chamber pressure PT, timer stroke TA adjustment procedure Adjust the sequence in accordance with the procedure below. 1. At N = N1 set PT lower limit at P1. 2. At N = N2, set so that TA lower limit is TA1. 3. At N = N1 tap the regulating valve so that the timer's minimum specifications are obtained. 4. Reconfirm timer specifications for N = N2. (1)If as specified, confirm timer operation at N = N3. (2)If not as specified: 1) Readjust the timer at N = N2. (Adjust using the outer adjustable type). 2) Confirm timer operation at N = N1, N = N2. T:Tightening torque (A) = screw
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N1=1125r/min N2=1600r/min N3=1125r/min N4=2000r/min P1=333kPa(3.4kgf/cm2) TA1=3.2mm
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T=7~10N-m(0.7~1.0kgf-m)

Information:

COMPRESSION PRESSURE MEASUREMENT
1. Inspection Check to make sure -(1) The crankcase oil level is correct, and the air cleaner, starter and battery are all in normal condition.(2) The engine is at the normal operating temperature.2. Measurement (1) Move the control lever to a position for shutting off fuel supply.(2) Remove all glow plugs from the engine. Install the compression gauge and adapter (ST332270) combination to a cylinder on which the compression pressure is to be measured.
Compression gauge and adaptor
Measuring compression pressure(3) Turn the engine with the starter and read the gauge pressure at the instant the gauge pointer comes to stop.(4) If the gauge reading is below the limit, overhaul the engine.
a) Be sure to measure the compression pressure on all cylinders.b) The compression pressure varies with change of engine rpm. This makes it necessary to check engine rpm at the time of measuring the compression pressure.
a) It is important to measure the compression pressure at regular intervals to obtain the data on the gradual change of the compression pressure.b) The compression pressure would be slightly higher than the standard in a new or overhauled engine owing to break-in of the piston rings, valve seats, etc. It drops as the engine components wear down.
TROUBLESHOOTING
1. GeneralThe diagnosis of troubles, especially those caused by a faulty fuel injection pump or injection nozzles, or low compression pressure, can be difficult. It requires a careful inspection to determine not which item is the cause, but how many causes are contributing to the cause. Several causes may be contributing to a single trouble.On the following pages, there are troubleshooting charts on which engine troubles can be traced to their causes. Each chart has items to be verified ahead and suggested inspection procedure.Diesel engines exhibit some marked characteristics during operation. Knowing these characteristics will help minimize time lost in tracing engine troubles to their source. Following are the characteristics of diesel engines you should know about for diagnosis:* Combustion know (diesel knock)* Some black exhaust smoke (when the engine picks up load)* Vibration (due to high compression pressure and high torque)* Hunting (when the engine speed is quickly decreased)* Some white exhaust smoke (when the engine is cold, or shortly after the engine has been started) 2. Engine troubleshooting Problem 1: Hard starting(1) Items to be checked for ahead* Clogged air cleaner* Wrong oil grade for weather conditions * Poor quality fuel* Low cranking speed(2) Inspection procedure Problem 2: Fuel knockMore or less fuel knock occurs in diesel engines. This may be caused either by an excessively large delay period or by a too fast rate of fuel injection.(1) Items to be checked for ahead* Clogged air cleaner* Poor quality fuel(2) Inspection procedure Problem 3: Overheating(1) Items to be checked for aheadOverheating might also be caused by abnormal operating conditions. If the engine is overheating but its cooling system is not contributing to this trouble, it is necessary to check the difference between the ambient temperature and coolant temperature when the engine is in