Install Bearings With Their Projection Fit Into; Crank Case Groove; First Tightening Torque : 10 N · M (7 Lb · Ft) [1.0 Kgf · M]; Second Tightening Torque : 23.5 N · M (17 Lb · Ft) [2.4 Kgf · M] - TOHATSU MFS 9.9 Owner's Manual

Power Unit
11. Install bearing half to crank case.
· Be sure that individual bearings are installed
to their original locations.
· Install bearings with their projection fit into

crank case groove.

12. Apply 4 stroke engine oil to bearings.
13. Apply sealing agent to mating surface of crank case (one
side).
· Degrease mating surfaces of cylinder and
crank case.
· Be careful not to allow sealing agent to
adhere to bearing.
· Apply Loctite 518 to mating surface of one of
crank case halves, taking care not to apply
the agent excessively.
14. Install crank case to cylinder block.
15. Tighten crank case bolts M8 in two steps to specified torque
in the order shown. Then, tighten M6 bolts in two steps to
specified torque.
Crank Case Bolts (M8)
First Tightening Torque : 10 N · m (7 lb · ft) [1.0 kgf · m]
Second Tightening Torque : 23.5 N · m (17 lb · ft) [2.4 kgf · m]
Crank Case Bolts (M6)
First Tightening Torque : 6 N · m (4 lb · ft) [0.6 kgf · m]
Second Tightening Torque : 11.5 N · m (8.5 lb · ft) [1.2 kgf · m]
16. Wipe off excess Loctite 518 from lower mating surface of
crankcase.
5-52
1 4 ：
to
5 to 10 ：
4st
4st OIL
518
518
7
5
9
4
2
8
6
10
3
4st 9.9/15/20 2008