Tightening Torque; Specified Torque - Yamaha 40V Service Manual

SPEC

TIGHTENING TORQUE

SPECIFIED TORQUE

Part to tightened
ENGINE:
Engine unit
Flywheel
Intake manifold
Reed valve
Spark plug
Cylinder head
Exhaust cover
Crank case
LOWER:
Propeller
Lower unit
Propeller shaft housing
Pinion nut
Water inlet
BRACKET:
Tiller handle mounting
Steering friction mounting
Tiller handle pivot
Muffler
Exhaust manifold
Exhaust guide
Clamp bracket (manual tilt)
Clamp bracket
PTT UNIT:
Plug screw
Tilt cylinder ass'y
Motor unit
Tilt cylinder end bolt
Inner cylinder end bolt
Gear pump
Bottom cover
Retaining plate
Main valve
TIGHTENING TORQUE
Part
name
Bolt
Nut
1st
Bolt
2nd
Bolt
Bolt
1st
Bolt
2nd
1st
Bolt
2nd
1st
2nd
Bolt
1st
2nd
Nut
Bolt
Bolt
Nut
Bolt
Nut
Nut
Bolt
Bolt
Bolt
Bolt
Nut
Nut
Bolt
Bolt
Bolt
Bolt
Bolt
Bolt
Bolt
Bolt
Bolt
Thread
Q'ty
size
M8 8
M16 1
M6 12
M3 12
M14 3
M8 14
M6 14
M6 6
M8 8
M16 1
M10 5
M8 2
M12 1
M6 1
M10 2
7/8 UNF 2
M12 1
M2 8
M3 8
M4 8
7/8 UNF 2
7/8 UNF 2
M8 1
M6 3
M3 5
— 1
— 1
M4 4
M6 4
M5 2
— 2
2-17
Tightening torque
Nm m•kg ft•lb
21 2.1 15
110 11 80
4 0.4 2.9
8 0.8 5.8
1 0.1 0.7
25 2.5 18
15 1.5 11
28 2.8 20
4 0.4 2.9
8 0.8 5.8
5 0.5 3.6
11 1.1 8.0
15 1.5 11
28 2.8 20
30 3.0 22
40 4.0 29
16 1.6 11
75 7.5 54
5 0.5 3.6
38 3.8 27
20 2.0 14
38 3.8 27
21 2.1 15
21 2.1 15
21 2.1 15
45 4.5 32
24 2.4 17
7 0.7 5.1
9 0.9 6.5
4 0.4 2.9
90 9.0 65
70 7.0 50
4 0.4 2.9
7 0.7 5.1
4 0.4 2.9
11 1.1 8.0
E
Remarks