SPEC
TIGHTENING TORQUES
Part to be tightened
Bypass valve motor – throttle
bodies
Engine
Engine unit – engine mount
Oil filter
Coupling cover
Thermoswitch (exhaust) –
exhaust pipe 3
Outer exhaust joint clamp –
exhaust pipe 3/exhaust
pipe 2
Inner exhaust joint clamp –
exhaust pipe 3/exhaust
pipe 2
Exhaust pipe 3 –
crankcase
Exhaust pipe end –
exhaust pipe 3
Exhaust pipe stay –
crankcase
Exhaust pipe 1 –
exhaust pipe stay
Exhaust pipe 2 –
exhaust pipe 1
Exhaust pipe 1 –
exhaust manifold 1/
exhaust manifold 2
Thread
Part name
Bolt
Bolt
—
Bolt
Bolt
1st
—
2nd
1st
—
2nd
1st
5th
Bolt
9th
2nd
6th
Bolt
10th
3rd
7th
Bolt
11th
4th
8th
Bolt
12th
1st
Bolt
2nd
1st
Bolt
2nd
1st
Bolt
2nd
1st
Nut
6th
2nd
Nut
7th
3rd
Nut
8th
4th
Nut
9th
5th
Nut
10th
1st
2nd
Bolt
3rd
12
https://www.boat-manuals.com/
Tightening torques
Q'ty
size
N•m
M8
2
13
M8
4
17
—
1
17
M6
1
7.8
M6
2
7.6
4.4
—
2
4.4
4.4
—
2
4.4
2.0
M10
1
15
39
2.0
M10
1
15
39
2.0
M10
1
15
39
2.0
M10
1
15
39
3.7
M6
3
7.6
15
M8
2
42
15
M10
1
42
39
—
1
39
39
—
1
39
39
—
1
39
39
—
1
39
39
—
1
39
22
M8
10
22
35
E
Remarks
kgf•m
ft•lb
1.3
9.4
1.7
12
1.7
12
0.78
5.6
0.76
5.5
0.44
3.2
0.44
3.2
0.44
3.2
0.44
3.2
0.2
1.4
1.5
11
3.9
28
0.2
1.4
1.5
11
3.9
28
0.2
1.4
1.5
11
3.9
28
0.2
1.4
1.5
11
3.9
28
0.37
2.7
0.76
5.5
1.5
11
4.2
30
1.5
11
4.2
30
3.9
28
3.9
28
3.9
28
3.9
28
3.9
28
3.9
28
3.9
28
3.9
28
3.9
28
3.9
28
2.2
16
2.2
16
3.5
25