Fit chain drive sprocket on the crankshaft.
将链条驱动链轮安装到曲轴上。
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。
Oil pump drive chain sprocket is pressed onto the front of the crankshaft.
油泵驱动链轮上按下了曲轴的前面。
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