拆去凸轮轴固定螺栓，并拆去作为一个总成的链轮和链条。
Remove the camshaft retaining bolt and remove the sprockets and chain as an assembly.
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.
若因螺栓折损而使相关部件破损及托链轮或支重轮磨偏，将大大增加维修费用。
If impairment of the relevant parts bolt breakage and entrusted sprocket or supporting wheels grinding side, will greatly increase the maintenance costs.
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