SELVA MARINE Blue Whale 250 EFI, Руководство по обслуживанию

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6P23H11
5-10
1
2
3
4
5
6
7
8
9
Checking the valve clearance
CAUTION:
Do not turn the flywheel magnet counter-
clockwise, otherwise the water pump
impeller may be damaged.
NOTE:
• Check the valve clearances when the
engine is cold.
• When adjusting the valve clearances, the
fuel pressure must be reduced before
removing any parts. To reduce the fuel
pressure, see Chapter 4,
“ Reducing the
fuel pressure. ”
1. Remove the flywheel magnet cover and
ECM cover.
2. Remove the blowby hose
1
.
3. Disconnect the ignition coil couplers
2
,
cam position sensor couplers
3
, and
knock sensor coupler
4
.
4. Disconnect the cooling water pressure
sensor adapter hose
5
.
5. Remove all ignition coils and spark plugs.
6. Remove the ECM bracket bolts
6
.
7. Remove the cylinder head covers.
NOTE:
See the exploded diagram (5-8).
8. Turn the flywheel magnet clockwise and
align the
“ 1TDC ” mark
a
on the flywheel
magnet with the pointer
b
.
9. 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.
S6P25090E
5
3
2
6
1
3
2
4
6
S6P25100
b
c
d
a
Power unit