注意消除正时齿轮背隙目前发现一些机手在调整供油提前角时，倒转曲轴使风扇皮带轮上止点记号倒退２６．５毫米弧长后，没有再正转曲轴消除齿轮背隙，造成油泵供油时间过早，发动机着火困难，工作无力，转速不稳，排气管连续冒黑烟。您注意到这个问题了吗？（黑龙江省五九... Attention to eliminate the backlash of timing gear Currently found that some of the hands in the adjustment of fuel supply advance angle, the inverted crankshaft fan catchdown mark 26.5 millimeters back arc, no longer forward crankshaft to eliminate gear backlash, causing the pump Fuel supply is too early, engine ignition difficulties, weak work, speed instability, black smoke exhaust pipe. Did you notice this problem? (Heilongjiang Province five nine ...