5. About the engine
75
Tightening Torque of General Bolts
Please refer to the following tightening torque for the bolts
which are not listed in Tightening Torque of Main Parts.
1. Tightening Torque of General Bolts
Exhaust Manifold
M10
10.9T
7.0 kgf
·
m
±
1.05 kgf
·
m
Intake Manifold
M8
8.8T
2.2 kgf
·
m
±
0.33 kgf
·
m
Fuel Injection Pump
(Cylinder Block)
M10 X 1.5
10.9T
5.0 kgf
·
m
±
0.5 kgf
·
m
Fuel Filter
M12 X 1.5
8.8T
7.5 kgf
·
m
±
1.12 kgf
·
m
Starter
M12 X 1.5
8T
4.4 kgf
·
m
±
1.2 kgf
·
m
Alternator Bracket
M14 X 1.5
8.8T
7.0 kgf
·
m
±
0.5 kgf
·
m
Oil Pressure Switch
PT 1/8
-
2 kgf
·
m
Cooling Water Tem-
perature Switch
M14 X 1.5
8.8T
2 kgf
·
m
Main Parts
Nominal
(Diameter x Pitch)
Tensile Strength
Rank
Tightening Torque
Remarks
Nomi-
nal
Diame-
ter ×
Pitch
(mm)
Strength Classification
3.6
4.6
4.8
5.6
5.8
6.6
6.8
6.9
8.8
10.9
12.9
(4A)
(4D)
(4S)
(5D)
(5S)
(6D)
(6S)
(6G)
(8G)
(10K)
(12K)
Elastic Limit Value (kg/mm
2
)
20
24
32
30
40
36
46
54
64
90
106
Tightening Torque (kg
·
m)
M5
0.15
0.16
0.25
0.22
0.31
0.28
0.43
0.48
0.5
0.75
0.9
M6
0.28
0.30
0.45
0.4
0.55
0.47
0.77
0.85
0.9
1.25
1.5
M7
0.43
0.46
0.7
0.63
0.83
0.78
1.2
1.3
1.4
1.95
2.35
M8
0.7
0.75
1.1
1
1.4
1.25
1.9
2.1
2.2
3.1
3.8
M8 x 1
0.73
0.8
1.2
1.1
1.5
1.34
2.1
2.3
2.4
3.35
4.1
M10
1.35
1.4
2.2
1.9
2.7
2.35
3.7
4.2
4.4
6.2
7.4
M10 x 1
1.5
1.6
2.5
2.1
3.1
2.8
4.3
4.9
5
7
8.4
M12
2.4
2.5
3.7
3.3
4.7
4.2
6.3
7.2
7.5
10.5
12.5
M12 x
1.5
2.55
2.7
4
3.5
5
4.6
6.8
7.7
8
11.2
13.4
M14
3.7
3.9
6
5.2
7.5
7
10
11.5
12
17
20
M14 x
1.5
4.1
4.3
6.6
5.7
8.3
7.5
11.1
12.5
13
18.5
22
M16
5.6
6
9
8
11.5
10.5
17.9
18.5
18
26
31