SELVA MARINE Blue Whale 250 EFI, Service Manual

Page: 182 / 377

POWR
Power unit
5-69
6P23H11
9. Install the crankcase onto the cylinder
block, and then tighten the crankcase
bolts to the specified torques in 2 stages
and in the sequence shown.
NOTE:
• Crankcase bolts
1
–
F
can be reused 5
times.
• The oil seal must be installed before tight-
ening the crankcase bolts.
• Apply engine oil to the crankcase bolts
before installation.
• Tighten crankcase bolts
1
–
F
to the speci-
fied torques in 2 stages first, and then
tighten crankcase bolts
G
–
S
to the speci-
fied torques in 2 stages.
• Make a mark
k
on the crankcase and
crankcase bolts, and then tighten crank-
case bolts
1
–
F
90 ° from the mark.
• After tightening the crankcase bolts, check
that the crankshaft rotates smoothly.
10. Install the piston with the “ UP ” mark on
the piston crown facing towards the fly-
wheel magnet.
NOTE:
Apply engine oil to the side of the pistons and
piston rings before installation.
11. Install the connecting rod cap
8
to the
connecting rod, and then tighten the con-
necting rod cap bolts to the specified
torques in 3 stages.
CAUTION:
Do not reuse the connecting rod cap
bolts, always replace them with new ones. T
R
.
.
1
–
8
Crankcase bolt (M8):
1st: 25 N · m (2.5 kgf · m, 18.4 ft · lb)
2nd: 90 °
9
–
F
Crankcase bolt (M10):
1st: 40 N · m (4.0 kgf · m, 29.5 ft · lb)
2nd: 90 °
G
–
S
Crankcase bolt (M8):
1st: 14 N · m (1.4 kgf · m, 10.3 ft · lb)
2nd: 28 N · m (2.8 kgf · m, 20.7 ft · lb)
S6P25B00J
E
90 ˚
k
PORT
UP
STBD
S
O
K
G
J
R
N M
8 F
E7
4 B A3
19
02
5C
D6
P
L
H
I
Q
Piston ring compressor:
90890-05158