S.l
ENGINE
BODY
92.4mm
STROKE
SERIES
WSM,0109A
cylinder head
Tightening
torque
I
bolts
I
r
93.1
to
98.0
Nm
9.5
to
10.0
k
fm
68.7
to
72.3
8-1
bs
I
I
C112F026
Cylinder Head and Tappet
1.
Loosen the pipe band, and remove the water
return pipe.
2.
Remove the cylinder head bolts
in
the order of
(22)
to
(l),
and remove the cylinder head.
3.
Remove the cylinder head gasket and O-ring.
4.
Remove the tappets from
the
crank case.
(When reassembling)
0
Replace the head gasket with a new one.
0
Before installing the tappets, apply engine oil
thinly around them.
0
Install the cylinder head, using care not to damage
the O-ring.
0
Tighten
the
cylinder head bolt gradually in the
order of
(1)
to
(14.18-22)
after applying engine oil.
0
Retighten the cylinder head bolt after running the
engine for
30
minutes.
NOTE
Mark the cylinder number to the tappets
to
prevent interchanging.
[A]
Gear case side
[B]
Flywheel side
Valve
1.
Remove the valve cap
(1).
2.
Remove the valve spring collet
(2)
with a valve
lifter.
3.
Remove the valve spring retainers
(3),
valve spring
(4)
and valve
(5).
(When reassembling)
0
Wash
the
valve stem and valve guide hole, and
apply engine oil sufficiently.
0
After installing the valve spring collets, lightly tap
the stem to assure proper
fit
with a plastic
hammer.
-
(1)
ValveCap
(4)
Valve Spring
(2)
Valve Spring Collet
(5)
Valve
(3)
Valve Spring Retainer
(6)
Valve Stem Seal
[4]
GEAR
CASE
Fuel Feed Pump and Pump Cover
1.
Loosen the pipe clamp and remove
the
fuel pipe
from the injection pump side.
2.
Remove the fuel feed pump
(1).
3.
Remove the injection pump cover
(2).
(When reassembling)
0
Apply a liquid gasket (Three Bond
1215
or
equivalent) to the both sides of fuel fecd pump
gasket.
(1)
Fuel Feed
Pump
(2)
Injection Pump Cover
s-59
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