This year, my knowledge of motor vehicles has improved considerably. Some parts I didn't even know existed in vehicles I now know to some extent. So far this year we have learned the theory of compression testing on engines, we have also learned what each tool is and how to use it correctly. And this lubrication is huge in vehicles because without engine lubrication, there is a risk that your engine will seize or explode. We also learned that if you don't reassemble engines correctly due to lack of knowledge or simply placing the wrong bolt somewhere, it can royally ruin your day. Every part of the engine must be accurate with measurements. If you're even outside my 0.0001mm you could ruin your engine. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an Original Essay First, I'll start by getting air and fuel into the engine through the carburetor. The role of the carburetor is to provide a mixture of air and fuel which will burn. During the intake stroke. The inlet valve between the carburetor and the combustion chamber opens. This allows pressure to force the air-fuel mixture into the cylinder bore as the piston moves down. Just after the piston moves down its stroke from bottom dead center, the cylinder bore contains the maximum possible air-fuel mixture. The intake valve closes and the piston moves back into the cylinder bore. This is called the compression stroke. The air-fuel mixture is pressed between the piston and the cylinder head. The third stage of the 4 cycles is when the piston reaches the peak of its stroke called top dead center, it will be at its perfect point to ignite the fuel to increase the power of your electrical equipment. A high voltage is created in the ignition coil. In spark plugs, this high voltage must be exerted into the combustion chamber. The heat produced by the spark ignites the gases, creating superheated gases that quickly explode and force the piston back down into the cylinder bore. It’s the coup de force. When the piston reaches BDC again, the exhaust valve opens. As the piston moves back into the cylinder bore, it pushes spent combustion gases through the exhaust valve and out of the exhaust systems. When the piston returns to TDC, the exhaust valve closes and the intake valve opens and the process repeats. Each time the cycle repeats, the cycle requires two full rotations of the crankshaft, while the engine only creates power during one of the strokes. To keep the machine running, it needs the small flywheel. The power stroke creates momentum which pushes the flywheel maintains its momentum and the crankshaft rotates for all 4 strokes. These are the 4 basic steps of 4 stroke engine that I have learned this year so far. But there is so much more to learn, like lubrication systems, like the difference between lubrication system of 2 stroke engines and 4 stroke engines. To start, I'm going to talk about 2-stroke engine components and what is called a mist lubrication system which is mainly only used for 2-stroke engines. In the 2-stroke engine, the intake and exhaust ports open and close as the piston moves. There are no poppet valves whereas a four-stroke has poppet valves. The difference in the induction method occurs in two different ways: the.