A car is not only a modern means of transportation, but also a complex technical mechanism. In this article we will talk about such an important detail as the ignition coil.
How does the car start? An inexperienced motorist will say that the engine sets it in motion. That is true, but the working mixture in the cylinders is ignited by a spark, which is supplied using the ignition system. Thus, a force arises, causing the car to pick up speed.
The ignition system is of three types: contact, non-contact and electronic. Nowadays, the first two species live their last days. Modern cars are equipped exclusively with an electronic ignition system. Of course, you cannot argue with progress. However, many of our citizens continue to drive old domestic cars. In such machines, a contact and non-contact ignition system is used. In any mechanism there is a main part. In our case, this is the ignition coil. In simple words - a transformer with two windings. Let's take a closer look at the ignition coil device.
First of all, this part is divided into three main types: general, individual and dual. The device of each of them is almost the same. Any ignition coil consists of two windings: primary and secondary. The first includes up to 150 coils of copper wire. In order to avoid short circuit there is insulation. This type of winding is characterized by two low-voltage leads on the cover of the ignition coil itself. Move on. The secondary winding is much thicker (up to 30,000 turns of thin copper wire) and is located inside the primary. High voltage is formed as a result of connecting one end of the secondary winding with a negative primary mark. Plus, the other end connects to the central terminal on the coil cover. To form a magnetic field with the proper performance, both windings are placed around the iron core.
All of the above coil elements are in a special case with an insulating cover. Here is a brief summary of the device for this part. Any ignition coil is characterized by one or another resistance of its windings. For each model, this value is individual. The generated high voltage is supplied to the spark plugs using a distributor . Thus, a spark arises with which the working mixture in the cylinders is ignited.
It seems to be sorted out with the device. Now let's discuss how the ignition coil is checked. Each motorist was in a situation in which a particular part of the car failed. As a rule, breakdowns occur at the most inopportune moment. Imagine this situation: the car will not start, while the starter rotates the crankshaft and the fuel is fed into the carburetor. It would seem that everything is fine, however, there is no spark. And the generator has nothing to do with it, since the engine can be started from the battery.
The problem is in the ignition coil. It converts low voltage to high voltage. How to independently check the ignition coil? So, remove the cover from the distributor, scroll the crankshaft so that the breaker contacts are in the closed state. Next, turn on the ignition, take the high-voltage wire coming from the ignition coil, and bring it to the "mass", maintaining a distance of one or two centimeters. It is also necessary to periodically break the breaker contacts with your hands.
A working coil for each opening will produce a strong spark of a bluish color. There is an ammeter on the dashboard of the car. So, when you turn off a faulty ignition coil, its arrow will be in the zero zone. A failed part cannot be repaired. You can easily put a new one, while you need to clearly observe the polarity.
If the above verification methods did not help, then contact specialized service centers where the ignition coil is tested using a special stand.