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起动困难分:冷车起动困难;热车起动困难;冷、热车起动都困难三种。 1.冷车起动困难。现象是冷车起动困难,热车起动不困难。常见原因是:气缸压力不足;供油偏早、偏晚或雾化不好。 气缸压力不足的判断:减压摇车产生一定惯性后,加压还能摇两圈,这说明气缸压力不足。如只能摇一圈则不是。造成气缸压力不足的原因:一是气缸与活塞之间漏气;二是气门关闭不严;三是气门间隙略大。可用不减压摇车听其漏气响声的位置来判断。
Difficult to start points: difficult to start cold car; hot car start difficult; cold, hot car are difficult to start three. 1. Cold start difficult car. The phenomenon is difficult to start a cold car, hot car start is not difficult. Common reasons are: lack of pressure in the cylinder; fuel supply is too early, late or poor atomization. Determine the lack of pressure on the cylinder: Decompression shake car have a certain inertia, the pressure can shake two laps, indicating that the lack of pressure on the cylinder. If only a circle is not. Cause of the reasons for the lack of pressure on the cylinder: First, air leakage between the cylinder and the piston; Second, lax valve closure; Third, slightly larger valve clearance. Can be used to reduce the pressure of the car to hear the location of the leak to judge.