Westerbeke 6.5KW Technical Manual page 61

4 cylinder marine gasoline generator sets twg series
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Tightening torque:
11.0 - 12.0 kg-m (80 - 87 lb-ft)
24. Valves.
Assemble
the
valves
in
the
cylinder
head
with
a
valve
spring lifter and pivot.
25. Cylinder head.
a.
position the head gasket on
the block.
b.
position the cylinder head.
c.
Install
capscrew
the
head
into
the
chain cover.
26. Camshaft.
through
timing
a.
Slide
the
timing
chain
sprocket
on
the
camshaft
making sure the position of
chain and
timing mark on
the sprocket are correct.
b.
position
the
camshaft
on
the cylinder head.
27. Rocker shaft assembly.
install the valve rocker arms on
the rocker arm shaft.
Insure
that there is 1 mm (.039 in) of
offset between the center of the
rocker arm adjusting screw and
that of the exhaust valve stem.
28. Cylinder head bolts.
NOTE:
Tighten the cylinder head
bolts in the order shown in the
figure.
Tightening torque:
7.8 - 8.2 kg-m
(56 - 59 lb-ft) (when cool)
IN
8
29. Check
the oil clearance
between the camshaft and cap with a
"plastigauge".
NOTE:
Make sure head bolts are properly torqued after checking
oil clearance.
Limit
of
camshaft
oil
clearance:
0.15
mm
(0.0059
in)
55

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