104741-4740 ZEXEL 9 460 614 025 BOSCH INJECTION-PUMP ASSEMBLY 9460614025 1047414740 167006t320

Information Cross number Calibration Data Calibration Data Ex

Information injection-pump assembly

BOSCH 9 460 614 025 9460614025

ZEXEL 104741-4740 1047414740

NISSAN-DIESEL 167006T320 167006t320

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Buy INJECTION-PUMP ASSEMBLY 104741-4740 zexel genuine, new aftermarket engine parts with delivery

Components :

0.	INJECTION-PUMP ASSEMBLY	104741-4740
1.	_
2.	FUEL INJECTION PUMP	104641-4740
3.	NUMBER PLATE	146983-3800
4.	_
5.	CAPSULE
6.	ADJUSTING DEVICE
7.	NOZZLE AND HOLDER ASSY	105148-1221
8.	Nozzle and Holder	16600-63G01
9.	Open Pre:MPa(Kqf/cm2)	9.8{100}
10.	NOZZLE-HOLDER	105078-0050
11.	NOZZLE	105007-1210

Scheme ###:

1/6.	[1]	146601-0900	PACKING RING
6.	[1]	146100-0420	SUPPLY PUMP
9.	[1]	146103-0100	COVER
10.	[2]	139104-0000	FLAT-HEAD SCREW
12.	[1]	146200-0020	DRIVE SHAFT
12/1.	[1]	146200-0000	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]	146210-2320	ROLLER SET
24.	[1]	146303-0100	BEARING PIN
25.	[1]	146304-0000	BEARING PIN
26.	[1]	146305-0000	CLAMPING BAND
27.	[1]	146205-0000	SLOTTED WASHER
29.	[1]	146220-4520	CAM PLATE
30.	[1]	146600-0800	O-RING
31.	[1]	146311-6420	PUMP PLUNGER
32.	[1]	146301-0000	SLIDING PIECE
34.	[1]	146312-2600	COMPRESSION SPRING
34B.	[1]	146312-2700	COMPRESSION SPRING
34C.	[1]	146312-2500	COMPRESSION SPRING
35/1.	[1]	146690-3200	SHIM D11.5&9.4T0.1
35/1.	[1]	146690-3300	SHIM D11.5&9.4T0.2
35/1.	[1]	146690-3400	SHIM D11.5&9.4T0.25
35/1.	[1]	146690-3500	SHIM D11.5&9.4T1.0
35/1.	[1]	146690-4100	SHIM D11.5&9.4T2
35/1.	[1]	146690-4200	SHIM D11.5&9.4T0.5
35/1.	[1]	146690-4300	SHIM D11.5&9.4T0.75
36.	[1]	146600-0800	O-RING
37.	[1]	146310-4020	COVER
38.	[2]	146620-5000	BLEEDER SCREW
39.	[1]	146310-5100	COVER
40.	[2]	146620-5000	BLEEDER SCREW
41.	[1]	146312-5300	COMPRESSION SPRING
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]	146401-4220	HYDRAULIC HEAD
50.	[1]	146401-4220	HYDRAULIC HEAD
50.	[1]	146401-4220	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]	146432-0200	COMPRESSION SPRING
58.	[4]	146440-0720	FITTING
60.	[3]	139106-0100	FLAT-HEAD SCREW
67.	[1]	146501-7220	GOVERNOR COVER
67/1.	[1]	146508-4521	GOVERNOR COVER
67/2.	[1]	146515-2820	CONTROL SHAFT
67/3.	[1]	146600-0100	O-RING
67/4.	[1]	139310-0200	PLAIN WASHER
67/5.	[1]	146537-7620	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]	146871-4220	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]	146975-4200	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
120.	[1]	146879-1420	RETAINING PIN
122.	[1]	146580-3200	GOVERNOR SPRING
123.	[4]	139106-0200	FLAT-HEAD SCREW
130.	[1]	146421-0020	CAPSULE
130/2.	[1]	026508-1140	GASKET D11.4&8.2T1
130/3.	[1]	146422-0000	BLEEDER SCREW
130/4.	[1]	146600-0500	O-RING
133.	[1]	146600-0600	O-RING
134.	[1]	146600-0700	O-RING
135.	[1]	146110-0920	CONTROL VALVE
135/5.	[1]	146114-0000	SPRING WASHER
136.	[1]	146120-0020	OVER FLOW VALVE
200.	[1]	146206-0100	COILED SPRING
230.	[1]	146926-4520	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]	146662-7620	WIRE
243.	[1]	146621-4901	UNION NUT
246.	[1]	027412-2440	EYE BOLT
800S.	[1]	146009-9220	PUMP HOUSING
800S/1/6.	[1]	146601-0900	PACKING RING
804S.	[1]	146232-1520	COMPRESSION SPRING
805S.	[1]	146574-0120	PARTS SET
810S.	[1]	146600-1120	REPAIR SET
812S.	[1]	146600-2220	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]	146983-3800	NAMEPLATE

Include in #2:

104741-4740 as INJECTION-PUMP ASSEMBLY

Cross reference number

BOSCH 9 460 614 025 9460614025

ZEXEL 104741-4740 1047414740

NISSAN-DIESEL 167006T320 167006t320

Zexel num

Bosch num

Firm num

Name

104741-4740

9 460 614 025

167006T320 NISSAN-DIESEL

INJECTION-PUMP ASSEMBLY
QD32 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)
Right R

Injection timing adjustment

Pump speed r/min 1000 1000 1000

Average injection quantity mm3/st. 50.2 49.7 50.7

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. 46.1 42.6 49.6

Oil temperature degC 48 46 50

Injection timing adjustment_03

Pump speed r/min 800 800 800

Average injection quantity mm3/st. 47.7 44.2 51.2

Oil temperature degC 50 48 52

Injection timing adjustment_04

Pump speed r/min 1000 1000 1000

Average injection quantity mm3/st. 50.2 49.2 51.2

Difference in delivery mm3/st. 5

Basic *

Oil temperature degC 50 48 52

Injection timing adjustment_05

Pump speed r/min 1500 1500 1500

Average injection quantity mm3/st. 49.9 46.4 53.4

Oil temperature degC 50 48 52

Injection timing adjustment_06

Pump speed r/min 1800 1800 1800

Average injection quantity mm3/st. 50.2 46.7 53.7

Oil temperature degC 50 48 52

Injection quantity adjustment

Pump speed r/min 2350 2350 2350

Average injection quantity mm3/st. 19.2 17.2 21.2

Basic *

Oil temperature degC 52 50 54

Injection quantity adjustment_02

Pump speed r/min 2600 2600 2600

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. 19.2 16.7 21.7

Basic *

Oil temperature degC 52 50 54

Governor adjustment

Pump speed r/min 350 350 350

Average injection quantity mm3/st. 10.9 8.9 12.9

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. 10.9 8.4 13.4

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. 90 75 110

Basic *

Oil temperature degC 48 46 50

Remarks
Full

Timer adjustment_02

Pump speed r/min 100 100 100

Average injection quantity mm3/st. 90 75 110

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

0000000901

Pump speed r/min 1000 1000 1000

Overflow quantity cm3/min 390 260 520

Oil temperature degC 50 48 52

Stop lever angle

Pump speed r/min 1000 1000 1000

Pressure kPa 539 519 559

Pressure kgf/cm2 5.5 5.3 5.7

Basic *

Oil temperature degC 50 48 52

Stop lever angle_02

Pump speed r/min 1000 1000 1000

Pressure kPa 539 500 578

Pressure kgf/cm2 5.5 5.1 5.9

Basic *

Oil temperature degC 50 48 52

Stop lever angle_03

Pump speed r/min 1800 1800 1800

Pressure kPa 736 677 795

Pressure kgf/cm2 7.5 6.9 8.1

Oil temperature degC 50 48 52

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Pump speed r/min 1000 1000 1000

Timer stroke mm 3.9 3.7 4.1

Basic *

Oil temperature degC 50 48 52

_02

Pump speed r/min 600 600 600

Timer stroke mm 1.3 1.3 1.3

Oil temperature degC 50 48 52

_03

Pump speed r/min 1000 1000 1000

Timer stroke mm 3.9 3.6 4.2

Basic *

Oil temperature degC 50 48 52

_04

Pump speed r/min 1800 1800 1800

Timer stroke mm 8.2 7.7 8.6

Oil temperature degC 50 48 52

_05

Pump speed r/min 2050 2050 2050

Timer stroke mm 8.2 7.7 8.6

Oil temperature degC 50 48 52

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Max. applied voltage V 8 8 8

Test voltage V 13 12 14

Timing setting

K dimension mm 3.3 3.2 3.4

KF dimension mm 5.62 5.52 5.72

MS dimension mm 0.9 0.8 1

Pre-stroke mm 0.1 0.08 0.12

Control lever angle alpha deg. 55.5 53.5 57.5

Control lever angle beta deg. 36 31 41

Information:

Cooling System
The centrifugal-type water pump mounts on the front cover and is belt driven by the crankshaft pulley. The pump has two outlets. Coolant from the outlet on the right side of the pump flows through a passage in the front cover to the left bank of the engine, and coolant from the outlet on the left flows to the right bank.The coolant circulates through the block to the cylinder head. Coolant flows from the heads through connecting sleeves to the return manifold in the front cover. Orifices in the sleeves control the flow from the heads.Part of the coolant to the left bank is diverted from the block to the oil cooler. External lines direct coolant from the block to the cooler and back to the return manifold in the front cover.An internal passage in the front cover directs the coolant from the return manifold to the water pump inlet. If the thermostats are closed the coolant flows to the pump and is recirculated through the engine. If they are open, coolant flows from the return manifold to the radiator and from there to the pump.The radiator is constructed with a top tank above the core and an expansion tank either above or separate from the top tank. A vent tube connects the radiator top tank and the expansion tank. The expansion tank has a shunt line which connects to the water pump inlet. This shunt system maintains a positive, static head of coolant at the pump inlet to prevent cavitation under all operating conditions. When filling the cooling system, coolant from the expansion tank flows through the shunt line to the water pump inlet and fills the engine block from the bottom. By filling the system from the bottom, air in the system is forced out through the top tank, through the vent tube into the expansion tank.The two thermostats are located at the inlet to the water pump. The inlet-regulated cooling system maintains positive coolant temperature control with decreased engine warm up time.When the thermostats are closed, coolant is circulated through the block and heads and back to the water pump by way of an internal passage in the front cover. When the thermostats are open, the bypass flow is restricted and the engine coolant flows through the radiator and returns through the inlet elbow to the water pump. Without the thermostats installed, the coolant will continually bypass the radiator, and overheating will result.Electrical System
The electrical system is a combination of three separate electric circuits: the charging circuit, the starting circuit and the lighting or load circuit. Each circuit is dependent on some of the same components. The battery (batteries), disconnect switch, circuit breaker, ammeter, cables and wires from the battery are common in each of the circuits.The charging circuit is in operation when the engine is operating. The electricity producing (charging) unit is an alternator. A regulator in the circuit senses the state of charge in the battery and regulates the electrical output to