TOHATSU BFT75A Service Manual page 417

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CYLINDER BLOCK
Apply engine oil to the threads and seat of the bolt/
washers [1].
Loosely tighten the ten bolt/washers on the crankcase,
and tighten them to the specified torque in two or three
steps in the numbered sequence shown.
After tightening to the specified torque, tighten the bolt/
washers additionally by 40° in the numbered sequence
shown.
TORQUE: 24 N·m (2.4 kgf·m, 18 lbf·ft) + 40°
Loosely tighten the twelve bolts [1] on the crankcase,
and tighten them securely in the numbered order
sequence shown in two or three steps.
Install a new O-ring [1] and the oil filler extension [2] on
the crankcase, and tighten the two bolts [3] securely.
15-16
[1]
10.
9.
5.
6.
2.
1.
3.
4.
8.
7.
9.
5.
1.
4.
8.
11. 12.
[1]
[1]
10.
6.
2.
3.
7.
[2]
[3]