TOHATSU MFS25 Service Manual page 170

Power Unit
Put pistons into cylinder with piston crown 1 "UP" mark
7.
directing flywheel side and piston slider 6 set on the pistons.
Before installing, apply engine oil to piston
peripheral surfaces, piston rings and piston
sliders.
Piston Slider 6 :
P/N. 3AC-72871-0
Install bearing half 7 to cylinder block 8.
8.
• Be sure that individual bearings are installed to
their original locations.
• Install bearings with their projection e fit into
cylinder block groove.
9. Apply engine oil to bearings and crankshaft.
Install crankshaft 9 and oil seals 0 and q on the cylinder
10.
block.
• Apply grease to lip of oil seal before installing it.
• Be sure that individual connecting rod cap is
installed to their original connecting rod.
Attach connecting rod cap w to connecting rod, and tighten
10.
connecting rod bolts e in two steps to specified torque.
• Align mating marks f of connection rod cap
and connecting rod with each other.
Connecting Rod Bolts e :
First Tightening Torque : 6 N·m ( 4 lb·ft ) [0.6 kgf·m ]
Final Tightening Torque : 12 N·m ( 9 lb·ft ) [ 1.2 kgf·m ]
5-54
1
6
LIT LIT
LIT LIT
q
f
1
6
8
e
7
9
0
e
w
25/30 2006