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1 一辆新的金蛙牌三轮农用运输车使用不久，出现了难以启动的故障。经过检查，修理工发现涡流室镶块上的启动喷孔已堵塞。分析引起该车启动喷孔堵塞的原因是：使用的柴油不清洁，且机车长时间超负荷作业，使燃烧室内产生了大量的积炭。经过清除启动喷孔的积炭，该机能顺利启动
1 A new Jinfang brand three-wheeled agricultural truck used soon, there was a hard to start the fault. After inspection, the mechanic found that the starting orifice on the swirl chamber insert was blocked. Analysis of the car caused the start of the nozzle clogged because: the use of diesel is not clean, and the locomotive overworked for a long time, so that a lot of carbon deposition in the combustion chamber. After clearing the coke start hole, the machine can start smoothly