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How Internal Combustion Engines ( Ic ) Work

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1. Introduction This report has been written to demonstrate a good understanding of how internal combustion engines (IC) work, and how to correctly recognise malfunctioning components. Including how to replace faulty components and what to identify to deem it as faulty. Other aspects of an IC engine that will be covered are air/fuel ratios, the importance of threaded fasteners and ignition timing; all with an explanation of what could happen if correct procedure is not followed. The work carried out involves the use of varying types of tools and precision equipment which are necessary to complete the task; this report explains the different types and their respective key uses. 2. Main Body 2.1 Types of Precision Equipment Three main precision tools that are commonly found and used in an auto engineer’s workshop are Micrometers, Bore Gauges and Vernier Callipers (pictures found in Appendix A). They are a useful tool because they can give very accurate measurements for specific components and parts; as these will measure very small distances. Which could be the difference between a very smooth and effective engine opposed to a rough and uneconomical one. There are three main basic types of micrometer: inside, outside and depth (see Appendix A). An outside micrometer is used for measuring wires, shafts and blocks. Where an inside micrometer can measure hole diameter and a depth micrometer measures depths of slots. Vernier, dial, and

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