TIGHTENING TORQUE
Tightening Torque – Important Fasteners
ITEM
Cylinder head cover bolt
Cylinder head bolt
Crankcase bolt
Conrod cap nut
Oil pump stopper
Intake manifold bolt/nut
Exhaust manifold bolt/nut
Valve adjusting lock nut
Rocker arm shaft screw
Timing pulley nut
Camshaft pulley bolt
Oil pressure switch
Oil regulator valve
Delivery pipe bolt
Delivery pipe plug/union bolt
Low pressure fuel pump bolt
Thermostat cover bolt
Water pressure valve cover bolt
Flywheel bolt
Starter motor mounting bolt
Engine oil filter
Engine oil drain plug
Power unit mounting bolt/nut
Driveshaft housing bolt
Upper mount nut
Upper mount cover bolt
Lower mount nut
Clamp bracket shaft nut
Water pump case bolt
Gearcase bolt
Propeller shaft bearing housing bolt
Pinion nut
Propeller nut
Tiller handle pivot bolt/nut
THREAD
DIAMETER
6 mm
10 mm
8 mm
10 mm
8 mm
8 mm
8 mm
7 mm
6 mm
38 mm
12 mm
14 mm
8 mm
Upper plug
12 mm
12 mm
Lower union
6 mm
6 mm
6 mm
16 mm
8 mm
12 mm
8 mm
10 mm
10 mm
12 mm
8 mm
Front
12 mm
Rear
12 mm
22 mm
8 mm
10 mm
6 mm
12 mm
18 mm
10 mm
GENERAL INFORMATION
TIGHTENING TORQUE
N . m
kg-m
10
1.0
73
7.3
25
2.5
50
5.0
35
3.5
50
5.0
23
2.3
23
2.3
17
1.7
11
1.1
70
7.0
60
6.0
13
1.3
27
2.7
23
2.3
40
4.0
40
4.0
10
1.0
10
1.0
10
1.0
190
19.0
23
2.3
14
1.4
13
1.3
23
2.3
50
5.0
50
5.0
70
7.0
23
2.3
60
6.0
40
4.0
43
4.3
20
2.0
55
5.5
10
1.0
100
10.0
55
5.5
45
4.5
1-15
Ib-ft.
7.0
53.0
18.0
36.0
25.5
36.0
16.5
16.5
12.5
8.0
50.5
43.5
9.5
19.5
16.5
29.0
29.0
7.0
7.0
7.0
137.5
16.5
10.0
9.5
16.5
36.0
36.0
50.5
16.5
43.5
29.0
31.0
14.5
40.0
7.0
72.5
40.0
32.5
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