82410·
82710·
82910 WSM, 12271
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Ob
09
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Of
oc
Ok
(A) 0 0 0 0 0 0 (B)
om
0 •
oe
0
ad
~
01
UOI
Uoa-UOh
On
Of
Oc
Ok
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00
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0
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0 °b0 0 (B)
qO 0
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0
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a
OP
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01
1 ENGINE
Cylinder
Head
1.
Loosen the pipe clamp, and remove the water return pipe.
2.
Remove the cylinder head screw in the order of (n) or (r) to (a).
3.
Lift up the cylinder head to detach.
4.
Remove the cylinder head gasket and O-ring (1).
(When
reassembling)
• Replace the cylinder head gasket with a new one.
• Securely fit the O-ring (1) to the pipe pin.
• Tighten the cylinder head screws after applying sufficient oil.
• Tighten the cylinder head screws gradually screw
in
the order of
(a) to (n) or (r).
• Tighten them uniformly, or the head
may
deform
in
the long run.
• Retighten the cylinder head screws after running the engine for
30 minutes.
63.7 to 68.6
N·m
Tightening torque Cylinder head screw
6.5 to 7.0 kgf·m
47.0 to 50.6 ft-Ibs
11900F10280
(A) Flywheel
Side
(B) Gear Case
Side
(n)
or
(r)
to
(a) :
To
Loosen
(a)
to
(n)
or
(r) :
To
Tighten
(1) O-ring
12271810140
Tappets
1.
Remove the tappets from the crankcase.
(When
reassembling)
• Visually check the contact between tappets and cams for proper
rotation. If defect
is
found, replace tappets.
• Before installing the tappets, apply engine oil thinly around them.
• IMPORTANT
• Do
not
change
the
combination
of
tappet
and
tappet
guide.
12460810310
1-S21
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