Westerbeke 9.0 BCG Technical Manual page 151

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4. The rocker arm shaft for the exhaust side, which
is the longest rocker shaft, must be installed in
the cylinder head's right side, as viewed from the
front. The shaft is inserted from the back of the
cylinder head. The dowel pin at the end of the
rocker arm shaft fits into a slot at the rear of the
cylinder head. This pin aligns the oil ports in the
rocker shaft to those in the cylinder head.
NOTE: If the set screws at the end of the rock-
er arm shafts were removed so the center of
the shafts could be cleaned, do not screw the
set screw in so far as to block the first oil port
in the rocker arm shaft ( allow dimension B to
be 0.314 inches [8 mm)).
5. Insert the wave washer (see right).
6. Install the distributor housing along with a new 0-
ring gasket. Tighten the bolts between 2.9 to 5.1
Ib-ft (0.4 - 0.7 kg-m).
145
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c:
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Intake side
U:
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/ Exhaust side
Valve rocker arm
Compression spring
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Amount of screwing-in: about 8mm
Westerbeke Generators