Nowadays, most of the vehicles runs on Diesel engines. We do not use coal-powered steam engines any more. Rudolf Diesel played a vital role in the modern era of transportation by inventing Diesel engines. The need for even bigger and more powerful engines brings the designers of such machineries to a challenging time but with the help of the fast growing Software industry, the challenges for better and fast design concepts can help the designers in any step of the technologically advanced production. The main goal of the thesis is to get knowledge on how a four cylinder four stroke compression-ignition Diesel engines operates and how each components that fall under it plays an important role in complete working of the engine by taking into...