Disassembling The Cylinder Block - SELVA MARINE Blue Whale 250 EFI Service Manual

POWR

Disassembling the cylinder block

1. Remove the oil filter using a 72.5 mm
(2.9 in) oil filter wrench.
Oil filter wrench: 90890-06830
2. Remove the oil filter bracket bolts in the
sequence shown.
STBD
%
±
#
3. Remove the crankcase cover bolts in the
sequence shown.
UP
3
9
C
STBD
G
D
0
4 5
4. Remove the connecting rod cap bolts
and the connecting rod caps, and then
remove the connecting rod and piston
assemblies.
NOTE:
See the exploded diagram (5-53).
5. Remove the clips 1 and piston pin, and
then remove the piston.
5-57
Power unit
UP PORT
!
$
S6P25930
2 1
8
B
PORT
F
E
A
6 7
S6P25940
NOTE:
• See the exploded diagram (5-53).
• Be sure to keep the bearings in the order as
they were removed.
• Mark each piston with an identification
number a of the corresponding cylinder.
• Mark each connecting rod and connecting
rod cap on the side facing up (flywheel
magnet side) with an identification mark b.
• Do not mix the connecting rods and caps.
Keep them organized in their proper
groups.
• Remove the piston rings and arrange them
in order.
6. Remove the oil pump.
NOTE:
See the exploded diagram (5-55).
7. Remove the crankcase bolts in the
sequence shown.
1
OG
5
SK
9
STBD
C PH
LD
0
2
6
8. Remove the crankshaft and bearings.
UP
4
FN
8
J R
B PORT
I
Q
EM
A
3
7
S6P25960J
6P23H11