所谓配气相位是以曲轴转角来表示气门开始开启和关闭终了的时刻。修理安装时,保证正确的配气相位,才能使发动机进气充足,排气干净,发挥最大功率。 在排气行程上止点,进、排气门处于开启状态,如配气相位装错了,凸轮轴往早转动(顺时针),则会造成排气门早开早关,废气排不净,使发动机温度过高,同时会使吸气凸轮在排气上止点时的升程过高,易造成活塞顶撞进气门,引起顶弯推杆、顶坏摇臂等事故。如凸轮轴往晚转动(逆时针), The so-called valve phase is based on the crank angle to indicate the valve starts to open and close the end of the moment. Repair and installation, to ensure the correct gas phase in order to make the engine adequate intake, exhaust clean, maximize the power. In the exhaust stroke at the dead center, into the exhaust valve is open, such as the valve with the wrong phase installed, the camshaft early rotation (clockwise), it will cause the exhaust valve early open earlier, the exhaust is not clean , So that the engine temperature is too high, and will make the suction cam at the exhaust when the top dead center too high, easily lead to the top of the piston into the valve, causing the top bend putter, the top bad rocker and other accidents. If the camshaft turns late (counterclockwise)