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Disassembly of automobile engines Disassembly of automobile engines is Arena Plus loginone of the most basic operations of repairing and maintaining cars. In the process of using the car, because the engine may have a variety of faults, including mechanical, electrical and thermodynamic faults, it needs to be disassembled and repaired.When disassembling and repairing the engine, it needs to be very careful, because once it is operated improperly, it will damage the engine. I. Steps to disassemble the engine 1. Prepare tools and materials: There are relatively many tools and materials needed to disassemble the engine, such as wrenches, plug wrenches, jacks, probes and booms, so you need to prepare in advance. Two. Disassembly of the battery: Because the car engine is driven by the motor, the battery needs to be removed first. When disassembling the battery, you need to remove the negative cable first, and then remove the positive cable. 3. Disassemble the parts of the engine: untie the dashboard according to the manufacturer's instructions, remove the parts of the oil supply and water supply engine, and remove the gearbox and clutch. Four. Remove the cylinder head: Disassembly of the cylinder head is usually inseparable from removing the oil, coolant and radiator, etc.First, remove all the cylinder head screws under the water tank cover, then remove the cylinder head cover plate, then remove the intake manifold and air intake agent in turn, and finally remove the piston and piston connecting rod. 5. Remove the engine: The last step of disassembling the engine is to unstw the engine mounting bracket and pull the entire engine out of the car. II. Install the engine 1. Install the engine: Install the engine bracket and other parts first. When installing the engine, you need to pay attention to connecting the intake system, exhaust system, oil supply system and electrical system, etc. Two. Installation of lubrication system: Lubrication system is one of the most critical parts of the engine. When installing the lubrication system, you need to install lubricating oil and positioning pads first, then install the oil pump, oil baffle and oil pump plug, and connect the oil pipe and oil root. In addition, it is necessary to install the oil san and oil chassis.3. Install the cooling system: The cooling system is an indispensable part of ensuring the normal operation of the engine. When installing the cooling system, you need to clean the water replenisher and the entire water pump first, then install the water pump and the water pump cover, and install the water tank and temperature control valve. Four. Installation of other parts: When installing the engine, other parts such as intake manifold, air intake agent, exhaust pipe, exhaust manifold and electrical system also need to be installed. III. Precautions 1. Safety inspection must be carried out first: Safety inspection must be carried out before disassembling and installing the engine. First, it is necessary to check the safety of the working area; secondly, it is necessary to ensure that the physical and technical condition of the workers are qualified; and finally, it is necessary to check whether the tools and materials used are appropriate. Two. Appropriate tools and materials must be used: When disassembling the engine, appropriate tools and materials are required.Any problems with tools and materials can lead to improper operation and damage to the engine. 3. Operating procedures must be followed: When disassembling the engine, operating procedures need to be followed. For example, you need to remove the hydraulic jack first, and then remove the adjustment screw. In a word, for every car repair technician, the disassembly and installation technology of the car engine is essential. Only by improving your own technical level can you improve the efficiency and quality of disassembly the engine. Only in this way can the quality and safety of the car be guaranteed.

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