Content .. 60 61 62 63 ..

Takeuchi compact excavator TB125, TB135, TB145 / diesel TNE / diesel Yanmar. Service Manual - page 62

12. Service Standards

186

12.2 Engine body

12.2.1 Cylinder head

(1) Cylinder head

Inspection item

Standard

Limit

Reference page

Combustion surface distortion mm

0.05 or less

0.15

4.2.5.(1)

Valve sink
mm

3TNV82A
(2-valve head)

Intake

0.35 to 0.55

0.8

Exhaust

0.30 to 0.50

0.8

TNV84 to 88
(2-valve head)
4TNV84T(4-valve)

Intake

0.30 to 0.50

0.8

Exhaust

0.30 to 0.50

0.8

4TNV94L•98(T)
(4-valve head)

Intake

0.36 to 0.56

0.8

Exhaust

0.35 to 0.55

0.8

4TNV106(T)
(4-valve head)

Intake

0.5 to 0.7

1.0

Exhaust

0.7 to 0.9

1.2

Valve seat
(2-valve, 4-valve)

Seat angle Deg.

Intake

120

4.2.6.

Exhaust

Seat correction angle deg.

40, 150

12. Service Standards

187

(2) Intake/exhaust valve and guide

Inspection item

Standard

Limit

Reference

page

3TNV82A
(2-valve head)

Intake

Guide inside diameter

7.000 to 7.015

7.08

4.2.5.(2)

Valve stem outside diameter

6.945 to 6.960

6.90

Clearance

0.040 to 0.070

0.18

Exhaust

Guide inside diameter

7.000 to 7.015

7.08

Valve stem outside diameter

6.940 to 6.955

6.90

Clearance

0.045 to 0.075

0.18

4TNV84
3TNV84(T)
3/4TNV88
(2-valve head)

Intake

Guide inside diameter

8.010 to 8.025

8.10

Valve stem outside diameter

7.955 to 7.975

7.90

Clearance

0.035 to 0.070

0.18

Exhaust

Guide inside diameter

8.015 to 8.030

8.10

Valve stem outside diameter

7.955 to 7.960

7.90

Clearance

0.045 to 0.075

0.18

4TNV84T
(4-valve head)

Intake

Guide inside diameter

6.000 to 6.015

6.08

Valve stem outside diameter

5.960 to 5.975

5.90

Clearance

0.025 to 0.055

0.15

Exhaust

Guide inside diameter

6.000 to 6.015

6.08

Valve stem outside diameter

5.945 to 5.960

5.90

Clearance

0.040 to 0.070

0.17

4TNV94L
4TNV98(T)
(4-valve head)

Intake

Guide inside diameter

7.000 to 7.015

7.08

Valve stem outside diameter

6.945 to 6.960

6.90

Clearance

0.040 to 0.070

0.17

Exhaust

Guide inside diameter

7.000 to 7.015

7.08

Valve stem outside diameter

6.940 to 6.955

6.90

Clearance

0.045 to 0.075

0.17

4TNV106(T)
(4-valve head)

Intake

Guide inside diameter

7.008 to 7.020

7.08

Valve stem outside diameter

6.945 to 6.960

6.92

Clearance

0.048 to 0.075

0.16

Exhaust

Guide inside diameter

7.008 to 7.020

7.08

Valve stem outside diameter

6.960 to 6.975

6.90

Clearance

0.033 to 0.060

0.18

Valve guide projection
from cylinder head

3TNV82A

11.7 to 12.0

4.2.7.

4TNV84, 3TNV84(T), 4TNV88

14.71 to 5.0

4TNV84T

8.2 to 8.5

4TNV94L, 4TNV98(T)

9.7 to 10.0

4TNV106(T)

13.4 to 13.6

Valve guide driving-in method

Cold-fitted

12. Service Standards

188

(3) Valve spring

(4) Rocker arm and shaft

(5) Push rod

(R.1)

Inspection item

Standard

Limit

Reference

page

Free length

3TNV82A(2-valve)

44.4

43.9

4.2.5.(4)

4TNV84,3TNV84(T), 4TNV88(2-valve)

42.0

41.5

4TNV84T(4-valve)

37.4

36.9

4TNV94L, 4TNV98(T),(4-valve)

39.7

39.2

4TNV106(T)(4-valve)

50.6

50.1

Inclination

3TNV82A(2-valve)

1.4

4TNV84, 3TNV84(T), 4TNV88(2-valve)

1.4

4TNV84T(4-valve)

1.3

4TNV94L, 4TNV98(T), (4-valve)

1.4

4TNV106(T)(4-valve)

1.5

Model

Inspection item

Standard

Limit

Reference

page

TNV82A to 88

Arm shaft hole diameter

16.000 to 16.020

16.07

4.2.5.(5)

Shaft outside diameter

15.966 to 15.984

15.94

Clearance

0.016 to 0.054

0.13

4TNV94L/98(T)/106(T)

Arm shaft hole diameter

18.500 to 18.520

18.57

Shaft outside diameter

18.470 to 18.490

18.44

Clearance

0.010 to 0.050

0.13

Inspection item

Standard

Limit

Reference page

Bend

Less than 0.03

0.03

4.2.5.(7)

12. Service Standards

189

12.2.2 Gear train and camshaft

(1) Camshaft

Inspection item

Standard

Limit

Reference

page

Side gap

0.05 to 0.20

0.30

4.3.4

Bending (1/2 the dial gage reading)

0 to 0.02

0.05

4.3.5.(1)

Cam height

3TNV82A-TNV88

38.600 to 38.800

38.350

4TNV94L•98

43.400 to 43.600

43.150

4TNV106(T)

50.900 to 51.100

50.650

Shaft outside diameter / Metal inside diameter

TNV82A to TNV88

Gear side

Bushing inside diameter

44.990 to 45.055

45.130

4.3.5.(1)

Camshaft outside diameter 44.925 to 44.950

44.890

Clearance

0.040 to 0.130

0.240

Intermediate

Bushing inside diameter

45.000 to 45.025

45.100

Camshaft outside diameter 44.910 to 44.935

44.875

Clearance

0.065 to 0.115

0.225

Wheel side

Bushing inside diameter

45.000 to 45.025

45.100

Camshaft outside diameter 44.925 to 44.950

44.890

Clearance

0.050 to 0.100

0.210

4TNV94L/98(T)

Gear side

Bushing inside diameter

49.990 to 50.055

50.130

Camshaft outside diameter 49.925 to 49.950

49.890

Clearance

0.040 to 0.130

0.240

Intermediate

Bushing inside diameter

50.000 to 50.025

50.100

Camshaft outside diameter 49.910 to 49.935

49.875

Clearance

0.065 to 0.115

0.225

Wheel side

Bushing inside diameter

50.000 to 50.025

50.100

Camshaft outside diameter 49.925 to 49.950

49.890

Clearance

0.05 to 0.100

0.210

4TNV106(T)

Gear side

Bushing inside diameter

57.980 to 58.050

58.105

Camshaft outside diameter 57.910 to 57.940

57.875

Clearance

0.040 to 0.140

0.250

Intermediate

Bushing inside diameter

58.000 to 58.030

58.105

Camshaft outside diameter 57.895 to 57.925

57.860

Clearance

0.075 to 0.135

0.245

Wheel side

Bushing inside diameter

58.000 to 58.030

58.105

Camshaft outside diameter 57.910 to 57.940

57.875

Clearance

0.050 to 0.120

0.230

12. Service Standards

190

(2) Idle gear shaft and bushing

(3) Backlash of each gear

12.2.3 Cylinder block

(1) Cylinder block

Inspection item

Standard

Limit

Reference page

Shaft outside diameter

45.950 to 45.975

45.900

4.3.5.(2)

Bushing inside diameter

46.000 to 46.025

46.075

Clearance

0.025 to 0.075

0.175

Model

Inspection item

Standard

Limit

Reference

page

3TNV82A
3/4TNV84(T)
3/4TNV88

Crank gear, cam gear, idle gear,
fuel injection pump gear and PTO gear

0.07 to 0.15

0.17

4.3.4.

4TNV94L
4TNV98(T)
4TNV106(T)

Crank gear, cam gear, idle gear,
fuel injection pump gear and PTO gear

0.08 to 0.14

0.16

Lubricating oil pump gear

0.09 to 0.15

0.17

Balancer drive gear
(only for 4TNV106(T))

0.12 to 0.18

0.20

Inspection item

Standard

Limit

Reference

page

Cylinder inside diameter

3TNV82A

82.000 to 82.030

82.200

4.4.5.(1)

3/4TNV84(T)

84.000 to 84.030

84.200

3/4TNV88

88.000 to 88.030

88.200

4TNV94L

94.000 to 94.030

94.130

4TNV98

98.000 to 98.030

98.130

4TNV106(T)

106.000 to 106.030

106.130

Cylinder bore

Roundness

0.01 or less

0.03

Inclination

12. Service Standards

191

(2) Crankshaft

Inspection item

Standard

Limit

Reference

page

Bending (1/2 the dial gauge reading)

0.02

4.4.5.(2)

Crank pin

3TNV82A

Pin outside diameter

42.952 to 42.962

42.902

Metal inside diameter

43.000 to 43.042

Metal thickness

1.487 to 1.500

Clearance

0.038 to 0.090

0.150

TNV84 to 88

Pin outside diameter

47.952 to 47.962

47.902

Metal inside diameter

48.000 to 48.026

Metal thickness

1.492 to 1.500

Clearance

0.038 to 0.074

0.150

4TNV94L•98

Pin outside diameter

57.952 to 57.962

57.902

Metal inside diameter

58.000 to 58.026

Metal thickness

1.492 to 1.500

Clearance

0.038 to 0.074

0.150

4TNV106(T)

Pin outside diameter

63.952 to 63.962

63.902

Metal inside diameter

64.016 to 64.042

Metal thickness

1.984 to 1.992

Clearance

0.054 to 0.090

0.150

Crank journal

3TNV82A

Journal outside diameter

46.952 to 46.962

46.902

Metal inside diameter

47.000 to 47.032

Metal thickness

1.987 to 2.000

Clearance

0.038 to 0.080

0.150

TNV84 to 88

Selective pairing

Journal outside diameter

53.952 to 53.962

53.902

Metal inside diameter

54.000 to 54.020

Metal thickness

1.995 to 1.990

Clearance

0.038 to 0.068

0.150

4TNV94L•98

Selective pairing

Journal outside diameter

64.952 to 64.962

64.902

Metal inside diameter

65.000 to 65.020

Metal thickness

1.995 to 2.010

Clearance

0.038 to 0.068

0.150

4TNV106(T)

Selective pairing

Journal outside diameter

75.952 to 75.962

75.902

Metal inside diameter

76.014 to 76.034

Metal thickness

2.488 to 2.503

Clearance

0.052 to 0.082

0.150

12. Service Standards

192

(3) Thrust bearing

(4) Piston and ring

Piston

Inspection item

Standard

Limit

Reference page

Crankshaft side gap

All models

0.13 to 0.23

0.28

4.4.4

Inspection item

Standard

Limit

Reference

page

Piston outside diameter
(Measure in the direction
vertical to the piston pin.)

3TNV82A

81.950 to 81.980

81.905

4.4.5.(4)

3,4TNV84(T)

83.940 to 83.970

83.895

3,4TNV88

87.940 to 87.970

87.895

4TNV94L

93.935 to 93.965

93.900

4TNV98(T)

97.930 to 97.960

97.895

4TNV106(T)

105.930 to 105.960

105.880

Piston diameter
measure position
(Upward from the bottom
end of the piston)

3TNV82A

3,4TNV84(T)

3,4TNV88

4TNV94L

4TNV98(T)

4TNV106(T)

Piston pin

3TNV82A

Hole inside diameter

23.000 to 23.009

23.039

Pin outside diameter

22.995 to 23.000

22.965

Clearance

0.000 to 0.014

0.074

3,4TNV84(T)
3,4TNV88

Hole inside diameter

26.000 to 26.009

26.039

Pin outside diameter

25.995 to 26.000

25.965

Clearance

0.000 to 0.014

0.074

4TNV94L•98

Hole inside diameter

30.000 to 30.009

30.039

Pin outside diameter

29.989 to 30.000

29.959

Clearance

0.000 to 0.020

0.080

4TNV106(T)

Hole inside diameter

37.000 to 37.011

37.039

Pin outside diameter

36.989 to 37.000

36.959

Clearance

0.000 to 0.022

0.080

12. Service Standards

193

Piston ring

(R.1)

Model

Inspection item

Standard

limit

Reference

page

3TNV82A
TNV84

Top ring

Ring groove width

2.065 to 2.080

2.170

4.4.5.(4)

Ring width

1.970 to 1.990

1.950

Side clearance

0.075 to 0.110

0.200

End clearance

0.200 to 0.400

0.490

Second ring

Ring groove width

2.035 to 2.050

2.150

Ring width

1.970 to 1.990

1.950

Side clearance

0.045 to 0.080

0.200

End clearance

0.200 to 0.400

0.490

Oil ring

Ring groove width

4.015 to 4.030

4.130

Ring width

3.970 to 3.990

3.950

Side clearance

0.025 to 0.060

0.180

End clearance

0.200 to 0.400

0.490

TNV88

Top ring

Ring groove width

2.060 to 2.075

2.170

Ring width

1.970 to 1.990

1.950

Side clearance

0.070 to 0.105

0.200

End clearance

0.200 to 0.400

0.490

Second ring

Ring groove width

2.025 to 2.040

2.140

Ring width

1.970 to 1.990

1.950

Side clearance

0.035 to 0.070

0.190

End clearance

0.200 to 0.400

0.490

Oil ring

Ring groove width

4.015 to 4.030

4.130

Ring width

3.970 to 3.990

3.950

Side clearance

0.025 to 0.060

0.180

End clearance

0.200 to 0.400

0.490

4TNV94L/98

Top ring

Ring groove width

2.040 to 2.060

Ring width

1.940 to 1.960

1.920

Side clearance

0.080 to 0.120

End clearance

0.250 to 0.450

0.540

Second ring

Ring groove width

2.080 to 2.095

2.195

Ring width

1.970 to 1.990

1.950

Side clearance

0.090 to 0.125

0.245

End clearance

0.450 to 0.650

0.730

Oil ring

Ring groove width

3.015 to 3.030

3.130

Ring width

2.970 to 2.990

2.950

Side clearance

0.025 to 0.060

0.180

End clearance

0.250 to 0.450

0.550

4TNV106(T)

Top ring

Ring groove width

2.520 to 2.540

Ring width

2.440 to 2.460

2.420

Side clearance

0.060 to 0.100

End clearance

0.300 to 0.450

0.540

Second ring

Ring groove width

2.070 to 2.085

2.185

Ring width

1.970 to 1.990

1.950

Side clearance

0.080 to 0.115

0.235

End clearance

0.450 to 0.600

0.680

Oil ring

Ring groove width

3.015 to 3.030

3.130

Ring width

2.970 to 2.990

2.950

Side clearance

0.025 to 0.060

0.180

End clearance

0.300 to -0.500

0.600

12. Service Standards

194

(5) Connecting rod

(6) Tappet

Inspection item

Standard

Limit

Reference page

Thrust clearance

0.2 to 0.4

4.4.4

Rod small end

Model

Item

Standard

Limit

Reference

page

3TNV82A

Bushing inside diameter

23.025 to 23.038

23.068

4.4.5.(5)

Pin outside diameter

22.995 to 23.000

22.967

Clearance

0.025 to 0.043

0.101

TNV84-88

Bushing inside diameter

26.025 to 26.038

26.068

Pin outside diameter

25.995 to 26.000

25.967

Clearance

0.025 to 0.043

0.101

4TNV94L/98

Bushing inside diameter

30.025 to 30.038

30.068

Pin outside diameter

29.987 to 30.000

29.959

Clearance

0.025 to 0.051

0.109

4TNV106(T)

Bushing inside diameter

37.025 to 37.038

37.068

Pin outside diameter

36.989 to 37.000

36.961

Clearance

0.025 to 0.049

0.107

Inspection item

Standard

Limit

Reference

page

TNV82A-88

Tappet hole (block) inside diameter

12.000 to 12.025

12.045

4.4.5.(6)

Tappet stem outside diameter

11.975 to 11.990

11.955

Clearance

0.010 to 0.050

0.090

4TNV94L•98

Tappet hole (block) inside diameter

12.000 to 12.018

12.038

Tappet stem outside diameter

11.975 to 11.990

11.955

Clearance

0.010 to 0.043

0.083

4TNV106(T)

Tappet hole (block) inside diameter

14.000 to 14.018

14.038

Tappet stem outside diameter

13.966 to 13.984

13.946

Clearance

0.015 to 0.052

0.092

12. Service Standards

195

12.3 Lubricating oil system (Trochoid pump)

(1) Outside clearance of outer rotor

(2) Side clearance of outer rotor

(3) Tip clearance between outer rotor and inner rotor

Insert a gap gage between an outer rotor and an inner rotor, and measure the tip clearance.

(4) Inside clearance of inner rotor

(5) Rotor shaft clearance

(R.1)

Model

Standard

Limit

Reference page

3TNV82A to 88

0.12 to 0.21

0.30

5.5.1.(1)

4TNV94L/98

0.100 to 0.155

0.25

4TNV106(T)

0.100 to 0.165

0.25

Model

Standard

Limit

Reference page

3TNV82A to 88

0.02 to 0.07

0.12

5.5.1.(1)

4TNV94L/98

0.05 to 0.10

0.15

4TNV106(T)

0.03 to 0.12

0.17

Tip clearance mm

Standard

Limit

0.16

Item

Parts

Standard

Limit

Reference

page

Inside clearance
of inner rotor

Gear boss diameter

53.05 to 53.15

0.3 to 0.5

0.6

5.5.1.(2)

Rotor diameter

53.45 to 53.55

Width across flat
clearance of inner rotor

Width across flat of
Gear boss

49.45 to 49.75

0.2 to 0.6

0.7

Width across flat of
rotor

49.95 to 50.05

Model

Inspection item

Standard

Limit

Reference

page

4TNV94L/ 98

Gear case bearing I.D.

12.980 to 13.02

13.05

5.5.1.(3)

Rotor shaft O.D.

12.955 to 12.975

12.945

Rotor clearance

0.035 to 0.065

0.105

4TNV106(T)

Gear case bearing I.D.

13.00 to 13.02

13.05

Rotor shaft O.D.

12.955 to 12.965

12.945

Rotor clearance

0.035 to -0.065

0.105

13. Tightening torque for bolts and nuts

196

13. Tightening torque for bolts and nuts

13.1 Tightening torques for main bolts and nuts

(R.1)

Part and engine model

Thread
diameter

× pitch

Tightening torque

N•m (kgf•m)

Lubricating oil

application

(thread portion,

and seat surface)

Reference

page

Cylinder
head bolt

3TNV82A

M9 × 1.25

61.7 to 65.7

(6.3 to 6.7)

Applied

4.2.4

TNV84 to 88

M10 × 1.25

85.3 to 91.1

(8.7 to 9.3)

4TNV94L•98

M11 × 1.25

103.1 to 112.9

(10.511.5)

4TNV106(T)

M13 × 1.5

188.0 to 197.8

(19.0 to 20.0)

Connecting
rod bolt

3TNV82A

M8 × 1.0

37.2 to 41.2

(3.8 to 4.2)

Applied

4.4.4

TNV84 to 88

M9 × 1.0

44.1 to 49.0

(4.5 to 5.0)

4TNV94L•98

M10 × 1.0

53.9 to 58.8

(5.5 to 6.0)

4TNV106(T)

M11 × 1.0

78.5 to 83.4

(8.0 to 8.5)

Flywheel
set bolt

TNV82A to 88

M10 × 1.25

83.3 to 88.2

(8.5 to 9.0)

Applied

4.3.4

4TNV94L•98•106(T)

M14 × 1.5

186.2 to 205.8

(19 to 21)

Bearing cap
set bolt

3TNV82A

M10 × 1.25

76.4 to 80.4

(7.8 to 8.2)

Applied

4.4.4

TNV84 to 88

M12 × 1.5

93.2 to 98.1

(9.5 to 10.5)

4TNV94L•98

M11 × 1.25

108.1 to 117.9

(11.0 to 12.0)

4TNV106(T)

M14 × 1.5

186.2 to 205.8

(19 to 21)

Crankshaft
pulley set bolt

TNV82A to 88

M14 × 1.5

112.7 to 122.7

(11.5 to 12.5)

Applied

4.3.4

4TNV94L•98•106(T)

M14 × 1.5

107.9 to 127.5

(11.0 to 13.0)

Fuel nozzle
set bolt

TNV82A to 88

M8 × 1.25

24.4 to 28.4

(2.5 to 2.9)

Not applied

4TNV94L•98•106(T)

M8 × 1.25

22.6 to 28.4

(2.3 to 2.9)

Fuel pump drive
gear set nut

TNV82A to 88

M14 × 1.5

78 to 88 (8 to 9)

Not applied

4.3.4

4TNV94L•98•106(T)

M18 × 1.5

113 to 123

(11.5 to 12.5)

Fuel injection
pipe set bolt

TNV82A to 88

M12 × 1.5

29.4 to 34.3

(3.0 to 3.5)

Not applied

4TNV94L•98•106(T)

M12 × 1.5

19.6 to 24.5

(2.0 to 2.5)

Fuel return
pipe joint bolt

4TNV94L98106(T)

M6 × 1.0

7.8 to 9.8

(0.8 to 1.0)

Not applied

Rocker arm
cover set bolt

4TNV106(T)

M8 × 1.25

16.7 to 22.5

(1.7 to 2.3)

Not applied

EPA flange
set bolt

4TNV106(T)

M18 × 1.5

113 to 123

(11.5 to 12.5)

Not applied

13. Tightening torque for bolts and nuts

197

13.2 Tightening torques for standard bolts and nuts

Note) Lubricating oil is not applied to threaded portion and seat surface.

Item

Nominal thread diameter

× pitch

Tightening torque

N•m (kgf•m)

Remarks

Hexagon bolt (7T)
and nut

M6 × 1

9.8 to 11.8

(1.0 to 1.2)

Use 80 % of the value at left
when the tightening part is
aluminum.
Use 60 % of the value at left for
4T bolts and lock nuts.

M8 × 1.25

22.6 to 28.4

(2.3 to 2.9)

M10 × 1.5

44.1 to 53.9

(4.5 to 5.5)

M12 × 1.75

78.4 to 98.0

(8.0 to 10)

M14 × 1.5

127.5 to 147.1

(13 to 15)

M16 × 1.5

215.7 to 235.4

(22 to 24)

PT plug

1/8

9.8

(1.0)

1/4

19.6

(2.0)

3/8

29.4

(3.0)

1/2

58.8

(6.0)

Pipe joint bolt

12.7 to 16.7

(1.3 to 1.7)

M10

19.6 to 25.4

(2.0 to 2.6)

M12

24.5 to 34.3

(2.5 to 3.5)

M14

39.2 to 49.0

(4.0 to 5.0)

M16

49.0 to 58.8

(5.0 to 6.0)

Printed in Japan

YANMAR CO,. LTD.

SMALL ENGINES FACTORY

ENGINE PRODUCT OPERATIONS DIVISION

1009-2, KAWAMICHI, BIWA-CHO, HIGASHIAZAI-GUN, SHIGA 526-0111, JAPAN

TEL : 81-749-72-5195

FAX : 81-749-72-5214 / 5158

YANMAR AMERICA CORP.

951 CORPORATE GROVE DRIVE, BUFFALO GROVE, IL 60089-4508, U.S.A.

TEL : 1-847-541-1900

FAX : 1-847-541-2161

YANMAR EUROPR B.V.

P.O. BOX 30112,1303 AC ALMERE NL

BRUGPLEIN 11, 1332 BS ALMERE-DE VAART, THE NETHERLANDS

TEL : 31-36-5493200

FAX : 31-36-5493209

YANMAR ASIA (SINGAPORE) CORPORATION PTE LTD.

4 TUAS LANE, SINGAPORE 638613

TEL : 65-6861-3855

FAX : 65-6862-5195

SERVICE MANUAL

FUEL INJECTION EQUIPMENT

MODEL

YPD-MP2/YPD-MP4

SERIES

M9961-03E070

Introduction

This document describes the features, disassembly, reassembly and adjustment procedure of the fuel injection unit

(Model YPD-MP2,MP4) for Yanmar Diesel Engine Model TNV.

Fuel injection unit is an essential mechanism of diesel engines, and thus, has to be designed to allow fine adjustment to

the engine load.

Therefore, the components of the fuel injection pumps are required to be given high-precision. To meet this requirement,

we process and assemble them very accurately.

Accordingly, when performing disassembly and adjustment works in the market, keep the workbenches and their

environment clean to surely prevent dirt and dust from attaching to the components of the unit, and take special care that

the components are not rusted.

Please note that the specifications of the components are revised to improve the quality of the product, and thus, the

details of the changed specifications will be notified through the correction table every time the change occurs.

Contents

FOR SAFE SERVICING

･･････････････････････････････････････････････････････････････････

1.1. Warning Symbols

･････････････････････････････････････････････････････････････････････

1.2. Safety Precautions

････････････････････････････････････････････････････････････････････

GENERAL INFORMATION

･･･････････････････････････････････････････････････････････････

2.1. Outline of MP pump

･･････････････････････････････････････････････････････････････････

2.2. Specifications

････････････････････････････････････････････････････････････････････････

2.3. Outline of fuel injection pump

･･････････････････････････････････････････････････････････

2.4. Construction of MP-Pump

･････････････････････････････････････････････････････････････

2.4.1.

Fuel Injection Part

････････････････････････････････････････････････････････････････

2.4.2. Governor

Part

2.4.3. Delivery

Part

2.5. Function of Component

･･･････････････････････････････････････････････････････････････

2.5.1.

F.O. Feed Pump

･･････････････････････････････････････････････････････････････････

2.6. Timer Mechanism

･･･････････････････････････････････････････････････････････････････

2.6.1.

Structure and Functions

･･････････････････････････････････････････････････････････

2.7. C.S.D.(Cold Start Device)

･････････････････････････････････････････････････････････････

2.7.1. Cold

Starting

Advancer

･･･････････････････････････････････････････････････････････

DISASSEMBLY ,REASSEMBLY AND INSPECTION

････････････････････････････････････････

3.1. Disassembly

3.1.1.

Separating the pump body from the governor body

･･･････････････････････････････････

3.1.2.

Separating the governor weight CMP

･･･････････････････････････････････････････････

3.1.3.

Disassembling the hydraulic head

･･････････････････････････････････････････････････

3.1.4.

Separating hydraulic head CMP

･･･････････････････････････････････････････････････

3.1.5.

Separating the cam shaft

･･････････････････････････････････････････････････････････

3.1.6.

Disassembling the hydraulic head CMP

････････････････････････････････････････････

3.2.

Disassembling the Governor

･････････････････････････････････････････････････････････････

3.3. Reassembly

･････････････････････････････････････････････････････････････････････････

3.3.1.

Re-assembling the hydraulic head

･･････････････････････････････････････････････････

Content .. 60 61 62 63 ..