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Engine overhaul process (engine overhaul fullDetailed explanation of the process) The On-demand trade data queriesengine is the heart of the car. If there is a problem with the engine, the whole vehicle will not be able to operate normally. Engine overhaul refers to the thorough overhaul and replacement of the car engine, which is generally carried out when it has been used for a long time or major failures. This article will give you a detailed introduction to the whole process of engine overhaul. 1. Confirm the problem and fault parts. Before the engine overhaul, it is necessary to confirm the problems and faults of the engine first. This can be judged in the following ways: - The car engine makes abnormal noise or roars. To solve this problem, it is necessary to check whether the engine transmission parts, such as belts, bearings and gears, are worn, loose or damaged; - The car accelerates slowly or the output power decreases, and the fuel needs to be checked to solve this problem. Whether the system and ignition system are normal, such as whether the oil pump or fuel injectore is working normally, whether the ignition coil is normal, etc.;- If the engine oil is too much or too little, it is necessary to check whether the oil line is dredged, whether the oil pump is working normally, and whether the oil digger is damaged, etc.; - If the engine cooling system fails, it is necessary to check whether the pump, radiator, thermostatic valve and other components are working normally. Two. After disassembly and careful cleaning to determine the problems and faulty parts, the engine needs to be disassembled and carefully cleaned. The disassembly work needs to be very careful to avoid damage to other parts during the disassembly process, and should be operated according to the engine disassembly drawings. Cleaning work requires thorough rinsing and cleaning of the engine with a professional cleaning solution to ensure that all dirt and residue are cleaned. 3. Check and replace the defective parts. After the removal and cleaning are completed, the defective parts need to be checked and replaced.The specific inspection work needs to vary according to different parts, such as using testing instruments to test whether the circuit parts are normal, or using a microscope to check whether the bearing is worn. At the same time, parts that have been seriously damaged need to be replaced or repaired. Four. Assembly and debugging After replacing or repairing all the faulty parts, the engine needs to be assembled and debugged. The assembly work needs to be reversed according to the disassembly process. At the same time, it is necessary to pay attention to the tightening force of the screw and the direction of the thread to avoid oil leakage or loosening. The commissioning work requires specific test equipment to ensure that the engine meets the requirements of various technical indicators and can operate normally under the condition of ensuring safety. 5. Inspection and quality assurance Finally, after the engine overhaul, comprehensive inspection and quality assurance are also required.This includes testing the output power, fuel consumption, emissions and various technical indicators of the engine to ensure safe and stable operation after the overhaul of the engine is completed. At the same time, for the parts that have been replaced, it is necessary to identify and record them to ensure that accurate information and the basis for troubleshooting can be obtained in the subsequent maintenance work. Summary: Engine overhaul is a complex task for thorough overhaul and replacement of automobile engines, which requires professional skills and rich experience to complete. Before the engine overhaul, it is necessary to carefully check and confirm the problems and faulty parts, and then carry out the whole process of disassembly, cleaning, inspection, replacement, assembly, debugging and quality assurance. Only by being meticulous and rigorous in every link can we ensure the quality and safety of the engine overhaul.

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