一、保持零部件的清洁拆卸发动机各组件前应清理外部,拆开后则要注意清除零件内腔、油孔及摩擦表面的油泥和污物。在清洗缸体和曲轴油道时,由于螺堵不易拆卸,有时甚至需钻掉螺堵,这时要注意不要破坏原螺孔螺纹,否则容易造成漏油。清洗油道需用加压的煤油或柴油,亦可用加热60～80℃的苏打水溶液,清洗后最好用压缩空气吹干。应注意的问题是:1.严禁用脏破布、麻布片擦干零部件,以避免其纤维堵塞润滑油道;2.滚珠轴承,精密偶件一定用干净的油清洗,同时注意防火。二、文明拆装 1.拆出螺母、螺栓时,一定要用相应尺寸的扳手或专用工具,严禁用手锤加扁铲或其它带刃的工具猛 First, to keep the parts clean Before the removal of the engine components should be cleaned outside, you should pay attention to remove the parts after the cavity, the hole and the friction surface of the sludge and dirt. When cleaning the cylinder block and crankshaft oil passage, the screw plug may not be easily disassembled, and sometimes the screw plug may sometimes be drilled. At this time, care should be taken not to damage the screw thread of the original screw hole, otherwise oil leakage may easily occur. Clean the oil duct with pressurized kerosene or diesel, can also be heated 60 ~ 80 ℃ soda solution, after washing it is best to use compressed air blow dry. Should pay attention to the problems are: 1. Do not use dirty rags, linen pieces dry parts, to avoid the blockage of its fiber lubricant; 2. Ball bearings, precision parts must be cleaned with clean oil, while paying attention to fire prevention. Second, the civil disassembly 1. Remove the nuts, bolts, be sure to use the appropriate size wrench or special tools, non-hand hammer plus flat shovel or other bladed tools fierce