When it comes to your ignition system, amplification is the name of the game. See, your battery generates only a small amount of voltage. To power your electrical components, this voltage needs to be amplified several hundred times. Such electrical current amplification allows the initial cranking of the engine, which would eventually result in starting up your engine or the continuous pumping of its pistons. In short, there's no way combustion will take place without the ignition system. And the very crucial process of voltage amplification? Well, that's taken care of by the ignition coil.
This ignition component is an induction coil necessary to fire the spark plugs. With the help of the contact breaker, it transforms the 12-volt electrical current from the battery into a current as high as 100,000 volts. When you break down a car ignition coil, you'll see that it's nothing more than a transformer made up of two coils of thin, insulated copper wires. The first wire coil is called the primary coil, while the one wrapped around it is the secondary coil. The secondary coil has a hundred times more turns compared to the primary coil.
Typically mounted on top of the spark plugs or the engine, the ignition coil works with the contact breaker. When the breaker cuts off the electrical current to the primary coil, the magnetic field in the coil collapses and "passes" onto the secondary coil. Once this happens, a current that can go as high as 100,000 volts is induced in the secondary coil. This is then fed to the distributor via a heavily insulated wire. Through its rotor and contact points, the distributor then sends the high-voltage electricity to the spark plugs, which in turn ignite the fuel and air mixture inside the combustion chambers.
While the coil is designed to handle huge amounts of electricity, its constant exposure to high voltage is also the most common reason for its failure. In fact, ignition coils are one of the most commonly replaced components in the ignition system. Signs of coil wearing include cracks in the ignition coil's housing and occasional failure in ignition. Once you notice these symptoms, be sure to have your ignition system checked by a professional.
Should your mechanic confirm that your ignition coil is indeed not anymore fit for use, replace it with a high-quality substitute from any of the trusted brands in the market. To have an easy time getting one, you only have to browse our online shelves here at Parts Train. We got low-priced coils and other ignition system components from reliable manufacturers that back their products up with warranties. Thus, you're assured of quality and performance whichever you choose from our wide selection of ignition parts.