Loosely install all the head bolts and the special washers ， then thread them in until they are finger - tight 松松地装上所有的汽缸盖螺栓和特殊?圈，然后用手锁紧它们。
2.
Turn the plastic memory stop ( clockwise ) down until it stops . finger - tight pressure is sufficient . do not overtighten 顺时针旋转塑料记忆止动装置，直到停止为止。手指紧固压力已经足够。不要过紧。
3.
Turn the brass memory lock ring until the aluminum memory ring stop contacts the step on the valve stem . do not overtighten . finger - tight pressure is sufficient 旋转黄铜记忆锁环直到铝记忆环停止接触阀杆上的台阶为止。不要过紧。手指旋紧压力已经足够了。
