Why does the cold start sucking manure truck have abnormal shaking? Maybe some people may not understand what is the cold start of sucking manure truck? Is abnormal noise related to cold start? The following is an introduction to you by the staff of the manufacturer: cold start, generally speaking, is that the engine stops for a long time (generally, it is regarded as a cold start after parking for more than 3-4 hours). In a more professional way, it is to start the car when the engine water temperature is low. A cold start means that the engine is cold. The corresponding is hot start, that is, when the engine water temperature is high.
Generally speaking, in addition to abnormal noise, cold start will be accompanied by the vibration of the manure suction truck. Generally speaking, the manure suction truck is not well maintained, that is, at ordinary times, they do not pay attention to the fuel water removal, lubricating oil maintenance and nozzle cleaning, etc. But these can not fundamentally solve the root cause of the car cold start, in fact, the most important reason for the cold start of the car is the poor combustion inside the cylinder. Because the combustion is not enough, the power of the car is not enough to start, so the shaking phenomenon is found.
The low ignition energy leads to jitter. The first problem faced by the car during cold start is low temperature. The temperature in the engine is not enough, and the temperature of fuel and lubricating oil is not enough. Therefore, more fuel injection should be carried out during cold start to meet the power requirements. The larger the spark plug gap, the smaller the ignition energy. The fuel atomization is not good at low temperature, and the fuel needs higher ignition energy. If the car is used for a long time, the ignition gap of spark plug is easy to become larger, which leads to the decrease of ignition energy, which affects the power performance and makes the car vibrate. In addition, aging of ignition coil, aging of high-voltage wire of spark plug or leakage of electricity can also lead to reduction of ignition energy.
In short, the abnormal noise of cold start is the problem of engine temperature. In fact, it may be caused by moisture in the fuel or poor lubricating oil. Some of them are due to the fact that the oil pump in the engine hasn't pumped out the oil pump and sprayed it to all moving parts when the engine of a manure sucking truck is cold started. If the moving parts are dry ground without or very little oil lubrication, of course, the noise generated will be clearer. When the car is hot, the oil will be in place, and there will be no sound.
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