Westerbeke 7.0 KW BGC -60Hz Technical Manual page 43

Pistons and Piston Rings
The piston rings have adopted steel rings. Moreover, the sliding surface with the cylinder has undergone a
tufftriding treatment. The second ring is a tapered ring made of a special cast Iron and has an undercut. In
addition, the oil ring has employed a combination type.
)
Compression ring No.1
Compression ring No.2
Oil ring
Connecting Rods
The connecting rod has an I-shaped sectional view. The connecting rod is assembled to the piston pin,
using a press-fit method.
Front Mark
Front Mark
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Westerbeke Generators