Selecting The Main Bearing - SELVA MARINE Grey Whale 200 EFI Service Manual

6. Install the crankcase onto the cylinder
block and apply engine oil to the threads
of the crankcase bolts.
7. Tighten the crankcase bolts to the speci-
fied torques in 2 stages and in the
sequence shown.
90˚
b
UP
S
5C
O
19
K
STBD
G 4 B
8 F
J
R
N
NOTE:
• Crankcase bolts 1–F can be reused 5
times.
• Do not turn the crankshaft until the crank-
shaft journal oil clearance measurement
has been completed.
• Tighten the M8 bolts 1–8 and M10 bolts
9–F to the specified torques in 2 stages.
In the 2nd stage, make a mark b on the
crankcase and crankcase bolts, and then
tighten crankcase bolts 1–F 90° from the
mark.
• After tightening the bolts 1–F has been
completed, tighten the M8 bolts G–S to
the specified torques in 2 stages.
6AL3J11
E
P
D6
L
0 2
H
PORT
A 3
I
E7
Q
M
S6P25990J
Crankcase bolt 1–8 (M8):
1st: 25 N·m (2.5 kgf·m, 18.4 ft·lb)
2nd: 90°
Crankcase bolt 9–F (M10):
1st: 40 N·m (4.0 kgf·m, 29.5 ft·lb)
2nd: 90°
Crankcase bolt G–S (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)
8. Gently remove the crankcase, and then
measure the width of the compressed
Plastigauge (PG-1) on each crankshaft
journal. Replace the main bearing if out
of specification.
NOTE:
When loosening the crankcase bolts, loosen
them in the opposite order used for tighten-
ing.
Crankshaft journal oil clearance:
0.025–0.050 mm
(0.0010–0.0020 in)

Selecting the main bearing

1. When replacing the main bearing, select
the suitable bearing as follows.
Cylinder block
1
2
3
4
5
6
7
8
9
5-68