104746-5221 ZEXEL 9 460 614 934 BOSCH INJECTION-PUMP ASSEMBLY 9460614934 1047465221 8973002071

Information Cross number Calibration Data Calibration Data Ex

Information injection-pump assembly

BOSCH 9 460 614 934 9460614934

ZEXEL 104746-5221 1047465221

ISUZU 8973002071 8973002071

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Buy INJECTION-PUMP ASSEMBLY 104746-5221 zexel genuine, new aftermarket engine parts with delivery

Components :

0.	INJECTION-PUMP ASSEMBLY	104746-5221
1.	_
2.	FUEL INJECTION PUMP	104646-5201
3.	NUMBER PLATE	146979-4300
4.	_
5.	CAPSULE	146620-0120
6.	ADJUSTING DEVICE	146679-0820
7.	NOZZLE AND HOLDER ASSY	105118-6532
8.	Nozzle and Holder
9.	Open Pre:MPa(Kqf/cm2)	18.1{185}
10.	NOZZLE-HOLDER	105048-3230
11.	NOZZLE	105017-2280

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]	146200-0820	DRIVE SHAFT
12/1.	[1]	146200-0800	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]	146205-0100	SLOTTED WASHER
29.	[1]	146220-2020	CAM PLATE
30.	[1]	146600-0800	O-RING
31.	[1]	146300-4000	PUMP PLUNGER
32.	[1]	146301-0000	SLIDING PIECE
33.	[1]	146603-0700	SHIM
34.	[1]	146302-3500	COMPRESSION SPRING
34B.	[1]	146302-3400	COMPRESSION SPRING
34C.	[1]	146302-3600	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]	146310-0700	COVER
38.	[2]	146620-5000	BLEEDER SCREW
39.	[1]	146310-5100	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]	146234-0600	GUIDE PIN
50.	[1]	146402-3820	HYDRAULIC HEAD
50.	[1]	146402-3820	HYDRAULIC HEAD
50.	[1]	146402-3820	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
55.	[4]	146430-7220	DELIVERY-VALVE ASSEMBLY VE72
56.	[4]	146432-0200	COMPRESSION SPRING
58.	[4]	146440-1520	FITTING
60.	[4]	139106-0100	FLAT-HEAD SCREW
67.	[1]	146821-5820	GOVERNOR COVER
67/1.	[1]	146508-6821	GOVERNOR COVER
67/2.	[1]	146515-2520	CONTROL SHAFT
67/3.	[1]	146600-0100	O-RING
67/4.	[1]	139310-0200	PLAIN WASHER
67/13.	[1]	013020-6040	UNION NUT
67/14.	[1]	146621-1700	UNION NUT
67/15.	[1]	146526-2800	BLEEDER SCREW
67/16.	[1]	146526-2800	BLEEDER SCREW
67/23.	[1]	146628-9201	BRACKET
67/24.	[2]	139006-4500	BLEEDER SCREW
67/26.	[1]	146932-2900	BRACKET STAMP 229
67/78.	[1]	146600-4400	SEAL RING
67/98.	[1]	139006-4500	BLEEDER SCREW
67/100.	[1]	146628-9000	BRACKET
67/102.	[1]	146629-5920	BRACKET
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
72.	[1]	146832-6920	CONTROL LEVER STAMP 269
72B.	[1]	146832-7020	CONTROL LEVER STAMP 270
72C.	[1]	146832-7120	CONTROL LEVER STAMP 271
72D.	[1]	146832-7220	CONTROL LEVER STAMP 272
73.	[1]	014110-6440	LOCKING WASHER D12.2&6.1T1.5
75.	[1]	013020-6040	UNION NUT
95.	[1]	146865-9920	FULCRUM LEVER
104.	[2]	146568-0000	SLOTTED SPRING PIN
105.	[2]	026508-1140	GASKET D11.4&8.2T1.0
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
112.	[1]	146572-0020	FLYWEIGHT ASSEMBLY
114.	[1]	146602-0500	PLAIN WASHER
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 L5.6
117/1.	[1]	146877-4800	PLUG L5.7
117/1.	[1]	146877-4900	PLUG L5.8
117/1.	[1]	146877-5000	PLUG L5.9
120.	[1]	146879-2920	RETAINING PIN
122.	[1]	146580-3300	GOVERNOR SPRING
123.	[4]	139106-0200	FLAT-HEAD SCREW
130.	[1]	146421-0320	CAPSULE
130/2.	[1]	026508-1140	GASKET D11.4&8.2T1.0
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]	146110-0720	CONTROL VALVE
135/5.	[1]	146114-0000	SPRING WASHER
136.	[1]	146120-1520	OVER FLOW VALVE
137.	[2]	139512-0500	GASKET
138.	[1]	146605-5820	INLET UNION
159.	[1]	146628-7220	PLATE
160.	[1]	146625-8020	PLATE
205.	[1]	029470-4030	WOODRUFF KEY
220.	[1]	146594-0500	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]	146611-0720	BRACKET
261.	[2]	146621-4700	UNION NUT
264.	[1]	016500-5010	O-RING
800S.	[1]	146009-9420	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
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
905.	[1]	146679-0820	ACTUATOR
905/1.	[1]	146679-0800	ACTUATOR
905/2.	[1]	146926-8320	BRACKET
906.	[1]	146979-4300	NAMEPLATE
912.	[2]	139006-6600	BLEEDER SCREW

Include in #2:

104746-5221 as INJECTION-PUMP ASSEMBLY

Cross reference number

BOSCH 9 460 614 934 9460614934

ZEXEL 104746-5221 1047465221

ISUZU 8973002071 8973002071

Zexel num

Bosch num

Firm num

Name

104746-5221

9 460 614 934

8973002071 ISUZU

INJECTION-PUMP ASSEMBLY
4JA1 K 11CJ INJECTION PUMP ASSY VE4 VE

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)
Left L

Injection timing adjustment

Pump speed r/min 1150 1150 1150

Average injection quantity mm3/st. 55.1 54.6 55.6

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. 33.4 29.4 37.4

Oil temperature degC 48 46 50

Injection timing adjustment_03

Pump speed r/min 750 750 750

Average injection quantity mm3/st. 40.8 36.8 44.8

Oil temperature degC 50 48 52

Injection timing adjustment_04

Pump speed r/min 1150 1150 1150

Average injection quantity mm3/st. 55.1 54.1 56.1

Difference in delivery mm3/st. 4.5

Basic *

Oil temperature degC 50 48 52

Injection timing adjustment_05

Pump speed r/min 2000 2000 2000

Average injection quantity mm3/st. 60.8 56.3 65.3

Oil temperature degC 50 48 52

Injection quantity adjustment

Pump speed r/min 2350 2350 2350

Average injection quantity mm3/st. 16.6 13.6 19.6

Difference in delivery mm3/st. 4

Basic *

Oil temperature degC 52 50 54

Injection quantity adjustment_02

Pump speed r/min 2700 2700 2700

Average injection quantity mm3/st. 5

Oil temperature degC 55 52 58

Injection quantity adjustment_03

Pump speed r/min 2350 2350 2350

Average injection quantity mm3/st. 16.6 13.6 19.6

Difference in delivery mm3/st. 4

Basic *

Oil temperature degC 52 50 54

Governor adjustment

Pump speed r/min 385 385 385

Average injection quantity mm3/st. 8.6 6.6 10.6

Difference in delivery mm3/st. 2

Basic *

Oil temperature degC 48 46 50

Governor adjustment_02

Pump speed r/min 385 385 385

Average injection quantity mm3/st. 8.6 6.6 10.6

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. 60 60 100

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 60 100

Oil temperature degC 48 46 50

Remarks
Full

Speed control lever angle

Pump speed r/min 385 385 385

Average injection quantity mm3/st. 0 0 0

Oil temperature degC 48 46 50

Remarks
Magnet OFF at idling position

0000000901

Pump speed r/min 1500 1500 1500

Overflow quantity cm3/min 630 500 760

Oil temperature degC 50 48 52

Stop lever angle

Pump speed r/min 1500 1500 1500

Pressure kPa 412 392 432

Pressure kgf/cm2 4.2 4 4.4

Basic *

Oil temperature degC 50 48 52

Stop lever angle_02

Pump speed r/min 1500 1500 1500

Pressure kPa 412 392 432

Pressure kgf/cm2 4.2 4 4.4

Basic *

Oil temperature degC 50 48 52

0000001101

Pump speed r/min 1500 1500 1500

Timer stroke mm 2.7 2.5 2.9

Basic *

Oil temperature degC 50 48 52

_02

Pump speed r/min 1000 1000 1000

Timer stroke mm 0.5

Oil temperature degC 50 48 52

_03

Pump speed r/min 1500 1500 1500

Timer stroke mm 2.7 2.5 2.9

Basic *

Oil temperature degC 50 48 52

_04

Pump speed r/min 1700 1700 1700

Timer stroke mm 3.9 3.5 4.3

Oil temperature degC 50 48 52

_05

Pump speed r/min 2050 2050 2050

Timer stroke mm 5.3 5 5.7

Oil temperature degC 52 50 54

0000001201

Max. applied voltage V 8 8 8

Test voltage V 13 12 14

Timing setting

K dimension mm 3.1 3 3.2

KF dimension mm 5.5 5.4 5.6

MS dimension mm 0.8 0.7 0.9

Pre-stroke mm 0.45 0.43 0.47

Control lever angle alpha deg. 18 14 22

Control lever angle beta deg. 35 30 40

Test data Ex:

0000001801 V-FICD ADJUSTMENT

Adjustment of the V-FICD 1. Adjust the actuator rod to obtain S1. 2. Apply negative pressure P1 kPa {P2 mmHg} to the actuator and confirm that it moves through its full stroke. (A) Control lever (Idling position)
----------
S1=1+1mm P1=-53.3kPa P2=-400mmHg
----------
S1=1+1mm

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. Make sure that the backs of the bearings and the bores are clean and dry.b. Make sure that the bearing locking tabs are properly seated in their slots.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 turn 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 make sure they are within the specification range.