SELVA MARINE Blue Whale 250 EFI, Service Manual

Page: 136 / 377

POWR
Power unit
5-23
6P23H11
14. Retract the port and starboard top cowl-
ing lock levers.
CAUTION:
Make sure that the top cowling lock levers
are retracted and the engine stoppers are
installed before removing the power unit,
otherwise the fuel rails could be dam-
aged.
15. Suspend the power unit from the engine
hangers
I
.
16. Remove the power unit by removing the
bolts
J
and
K
.
Removing the timing belt, driven
sprocket, and camshaft
CAUTION:
• Do not turn the crankshaft counterclock-
wise, otherwise the water pump impeller
may be damaged.
• Do not turn the crankshaft or the driven
sprockets when the timing belt is not
installed. Otherwise the piston and
valves or intake and exhaust valves will
collide with each other and be damaged.
• Do not turn the crankshaft and cam-
shafts unless instructions have been
given.
1. Check that the “ ” mark
a
on the drive
sprocket and the “ ” mark
b
on the cyl-
inder block are aligned.
2. Check that the “ II ” marks
c
on the port
driven sprockets are aligned, and check
that the
“ I ” marks
d
on the starboard
driven sprockets are aligned.
PORT
STBD
S6P25360
S6P25365
PORT STBD
S6P25370E
I
I
J
K
J
J
J
J
K
K