Automobile engine structure and maintenance [1], this textbook determines the content according to the technical field of automobile operation and maintenance and professional post requirements, simplifies the tedious theoretical analysis, highlights the description of structure, maintenance, detection and fault diagnosis, and strives to link up with professional qualification standards, which has strong post pertinence and practicability. This book gives a comprehensive description of the two major mechanisms and five major systems of the engine, which is divided into 10 chapters, including the general introduction, working principle and overall structure of the engine, the construction and maintenance of crank-connecting rod mechanism, the construction and maintenance of valve train, the construction and maintenance of gasoline engine fuel supply system, the construction and maintenance of electronically controlled gasoline injection fuel supply system, diesel engine fuel supply system, engine emission control system and lubrication system. This book is suitable for teachers and students majoring in automobile inspection and maintenance technology, automobile electronic technology, car beauty and marketing in higher vocational colleges. It can also be used and referenced by automobile inspection technicians, and can also be used as training materials for various automobile maintenance training courses. Automobile Engine Structure and Maintenance 2: Introduction This book is divided into five chapters, which mainly introduces the structure and maintenance technology of automobile engine, including the overall structure and disassembly of engine, the maintenance of crankshaft connecting rod mechanism, the maintenance of valve train, the maintenance of cooling system, lubrication system and fuel system. This book divides the engine into several modules, and then introduces the specific actual combat process in the form of tasks. The theoretical knowledge is well combined with the actual operation, which is suitable for the majority of automobile professional maintenance personnel and can also be used as a teaching material for short-term automobile maintenance courses. Contents Chapter I General Structure and Dismantling Task of Engine Assembly Chapter II Dismantling Task of Engine Block Group Chapter III Dismantling Task of Piston Connecting Rod Group Chapter IV Dismantling Task of Crankshaft Flywheel Group Chapter V Dismantling Task of Valve Train Chapter VI Dismantling Task of Cooling System Chapter VII Dismantling Task of Lubrication System Chapter VIII Dismantling Task of Gasoline Direct Injection System Chapter IX Dismantling Task of Diesel System Chapter II Maintenance Task of Crankshaft Connecting Rod Mechanism Chapter I Gasoline Maintenance Task Cylinder Head 2 Gas. Maintenance task of cylinder block 3 Failure and cooperation task of piston ring and piston pin 4 Failure and cooperation task of piston ring and piston pin 5 Maintenance task of connecting rod 6 Maintenance task of connecting rod bushing 7 Maintenance task of crankshaft 8 Maintenance task of flywheel 9 Maintenance task of bearing Chapter III Maintenance task of valve train 1 Maintenance task of valve train 2 Maintenance task of valve train 4 Maintenance task of cooling system 1. Structure and maintenance tasks of radiator 2. Structure and maintenance tasks of water pump 3. Structure and maintenance tasks of thermostat 4. Structure and descaling task 5. Structure and maintenance task 6. Selection of coolant 5. Maintenance task of lubrication system 2 1. Structure and maintenance task 2 of oil filter 3. Structure and maintenance tasks of oil pressure gauge and oil pressure sensor 4. Selection of engine lubricating oil. Maintenance of lubrication system. Maintenance tasks of fuel system 1. Maintenance task of electronically controlled fuel injection system II. Inspection and Adjustment of Diesel Fuel Supply Timing Task 3. Maintenance task of diesel fuel injection pump, fuel injector and fuel pump 4 Fault diagnosis task of electronically controlled gasoline injection engine 5 Fault diagnosis of diesel engine structure and maintenance of automobile engine [3] Summary The main features of this set of teaching materials are: 1. The models selected in the textbook are mainly cars, with Santana 2000GSI as the main line, so that readers can draw inferences on the basis of in-depth understanding of the structural principle and maintenance of Santana 2000GSI, and it is also convenient for all teaching units. In the book, the new knowledge, new technology, new structure and new technology of automobile are also comprehensively and deeply expounded, so that students can learn more knowledge and technology. 2. The teaching materials have strong professional adaptability and wide application. Because this set of teaching materials is a modular teaching material that takes into account the training requirements of senior technicians and technicians, senior technicians or technicians can choose to study according to the situation in all automobile majors, whether single or compound. 3. Teaching materials are closely combined with practice, emphasizing skill training, which is suitable for the "modular integration" teaching mode. 4. The teaching materials are easy to understand, illustrated and lively, which helps to stimulate students' interest in learning. 5. The content of the textbook is consistent with the actual production and vocational skill appraisal, so that students can adapt to it and improve it continuously after graduation. Directory overview module 1 engine working principle and overall structure unit 1 engine type and model unit 2 engine basic structure and basic terminology unit 3 engine working principle unit 4 engine overall structure unit 5 engine performance index module 2 crank-connecting rod mechanism unit 1 crank-connecting rod mechanism overview unit 2 engine body unit 3 piston-connecting rod unit 4 crankshaft flywheel unit 5 songs. Handle linkage abnormal sound diagnosis module three valve mechanism units one valve mechanism overview unit two valve mechanism units three valve mechanism units four valve mechanism units five valve mechanism abnormal sound diagnosis module four gasoline engine fuel supply system unit one fuel supply system overview unit two electronically controlled fuel injection system overview unit three air supply system unit four fuel supply system unit five electronic control system unit six electronic control. Gasoline engine unit auxiliary control system 7 electronic fuel injection system common fault diagnosis module unit 5 diesel fuel supply system unit 1 fuel supply system overview unit 2 mixture forming device unit 3 fuel supply system unit 4 auxiliary device unit 5 diesel electronic fuel injection system unit 6 fuel supply system common fault diagnosis module unit 6 intake and exhaust system unit 1 intake system unit 2 row. Air system unit 3 Engine air intake and pressurization module 7 Lubrication system unit 1 Lubrication system overview unit 2 Lubrication system main parts unit 3 Diagnostic module 8 Cooling system unit 1 Cooling system overview unit 2 Water cooling system main parts unit 3 Diagnostic module 9 Emission control system unit 1 Emission control system overview unit 2 Crankcase forced ventilation (PCV) system ... module 10 Engine assembly and assembly.