4 Cycle Internal Combustion Engine - Electrical System

Adam Kemp: Hi I am Adam Kemp, and today we are learning about Internal Combustion engines. In this clip, I am going to give an overview of our Internal combustion engine's Electrical system. To start, I am going to illustrate the four main components that make up the Internal Combustion engine's Electrical system. First, we have the Ignition coil which is going to produce a high voltage electrical current in order to induce a spark across the two points in our Spark plug. Next, we have our spark plug wire which is going to carry that high voltage from the coil to the Spark plug. Third, I am going to illustrate the Magnet that is a test for a Flywheel and is used to induce an electrical current in our Ignition coil. Once every revolution, the magnet passes by the ignition coil and produces a spark during the compression cycle. This spark is used to ignite the gas and fuel mixture in order to produce your Power Stroke.

The fourth and final component I will illustrate in the Electrical system is a Spark plug. The spark plug consists of two key components, the Anode, which is the positive side of the spark plug, accepts the current coming from the Ignition coil and transfers it down the body of the spark plug to the point at which it bridges a gap between the positive and the ground of this spark plug. The ground on the spark plug consists of a threaded body where it is attached to the head of the engine. For the next clip, we will be talking about the Fuel systems that is used in the Internal Combustion engine.

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