| 摘要 |
A cylinder head assembly having a camshaft axially supported by a cylinder head through a camshaft housing having a head oil passageway for guiding lubricating oil to those parts of the cylinder head which require lubrication. The camshaft housing is provided with an oil reserve chamber communicating with the oil head passageway. One end of a through-passageway communicates with an upper part of the oil reserve chamber, and the other end of this through-passageway communicates with a camshaft journal of the camshaft housing.
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