安装正时链、曲轴链轮和凸轮轴链轮，使正时标记对齐。
If chain is not satisfactory, remove camshaft sprocket attaching bolt and remove timing chain with crankshaft and camshaft sprockets.
若正时链不令人满意，则拆下凸轮轴链轮固定螺栓，并拆下曲轴和凸轮轴链轮的正时链。
If chain is not satisfactory, remove camshaft sprocket attaching bolt and remove timing chain with crankshaft and camshaft sprockets.
将链条驱动链轮安装到曲轴上。
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