拧紧防松螺母后,再一次检查间隙,视需要重新调节间隙.Recheck clearance again after tightening locknut . Readjust clearance as necessary.防松螺母拧紧后,再对所有气门的间隙重新检查一次.Recheck clearance on all valves again after locknut is tightened.将气门调节螺丝防松螺母拧紧至27牛顿·米 (...