Westerbeke 9.0 BCG Technical Manual page 86

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B. Remove the hexagon socket head cap screws from the cylinder block using a 6-mm hexagon wrench;
extract the balance shaft and balance shaft gear toward the front of the cylinder block taking care to
avoid damaging the bearing journals. Repeat this process for the left side balance shaft on the BeG
4.0KW engine.
9. Remove the connecting rod cap screws and detach the connecting rod cap. Push the connecting rod
and piston assembly upward, out of the top of the cylinder block, using the handle of a hammer (or similar
nonmetallic tool).
NOTE: Temporarily reassemble the connecting rod and cap to keep the parts together for
later reassembly of the cylinder block components in the same locations from which they were
removed.
Repeat this procedure for each cylinder.
10. Remove the piston rings from each piston as follows.
A. Remove the No. 1 and No. 2 piston rings using a commercially-available piston ring expander. Refer
to the illustration shown to the right.
B. Remove the combination-type oil ring by hand.
Westerbeke Generators
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