Yamaha F40BMHD Wartungshandbuch Seite 260

POWR
#1
#2
#3
#4
CRANKSHAFT AND PISTON
b
a
(5) Install the other half of the bearings
into the crankcase.
NOTE:
Align the projection of the bearing with the
notch in the crankcase.
(6) Install the crankcase onto the cylinder
block.
(7) Apply engine oil on to the threads and
seat of the crankcase bolts.
(8) Tighten the bolts to the specified
torque in two steps.
NOTE:
Do not move the crankshaft until the main-
bearing oil clearance measurement has
been completed.
Bolt (M8)
1st
15 Nm (1.5 m
2nd
30 Nm (3.0 m
Bolt (M6)
1st
6 Nm (0.6 m
2nd
12 Nm (1.2 m
(9) Remove the crankcase.
(10) Measure the width of the compressed
Plastigauge
2. Select:
• Main-bearing
Select the suitable main-bearing
from the table below.
Main-bearing selection table 20 °C (68 °F)
Crankcase mark
A
B
C
5-46
kgf, 11 ft
• •
kgf, 22 ft
• •
kgf, 4.3 ft lb)
• •
kgf, 8.7 ft
•
®
on each main journal.
a
Bearing color
Blue
Black
Brown
E
lb)
lb)
lb)
•
b