SELVA MARINE Fin Whale 225 EFI, Руководство по обслуживанию

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POWR
Power unit
5-9
6AL3J11
Checking the valve clearance
CAUTION:
Do not turn the flywheel magnet counter-
clockwise, otherwise the water pump
impeller may be damaged.
NOTE:
Measure the valve clearances when the
engine is cold.
1. Reduce the fuel pressure.
NOTE:
When measuring or adjusting the valve clear-
ances, the fuel line must be disconnected, so
be sure to reduce the fuel pressure before
performing the disassembly procedure. To
reduce the fuel pressure, see Chapter 4,
“ Reducing the fuel pressure. ”
2. Remove the flywheel magnet cover and
ECM cover.
3. Remove the blowby hose
1
.
4. Disconnect the ignition coil couplers
2
,
cam position sensor couplers
3
, knock
sensor coupler
4
, and cooling water
pressure sensor adapter hose 5 .
5. Remove the speed sensor coupler
6
from the bracket.
6. Remove all ignition coils and spark plugs.
7. Remove the ECM bracket bolts
7
, then
the ECM bracket.
8. Remove the cylinder head covers (port
and starboard).
NOTE:
See the exploded diagram (5-7).
9. Turn the flywheel magnet clockwise and
align the
“ 1TDC ” mark
a
on the flywheel
magnet with the pointer
b
.
10. 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.
S6P25090C
5
6
3
2
7
1
3
2
4
7