Rocker cover

A 4-cylinder Lycoming O-320 aircraft engine, with the rocker box cover of one cylinder (of the two visible) removed to expose the rocker arms for inspection.

Rocker covers are covers that are bolted on over rocker arms in an internal combustion engine. They are called valve covers in the United States, Canada, and in situations where Rocker Arms are not present, such as some Overhead Cam, and most Dual Overhead Cam engines. and rocker boxes in the United Kingdom.

单词	Rocker cover
释义	Rocker cover 英语百科 Rocker cover Rocker covers are covers that are bolted on over rocker arms in an internal combustion engine. They are called valve covers in the United States, Canada, and in situations where Rocker Arms are not present, such as some Overhead Cam, and most Dual Overhead Cam engines. and rocker boxes in the United Kingdom.
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