How to set the ignition on a four-stroke engine?

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

Each of the motorists knows firsthand what the wrong ignition timing is. For the driver, these are constant problems with starting the engine, with a loss of power, as well as with increased fuel consumption. For the unit itself, such problems can end very badly, especially if the ignition timing is selected a little earlier than it should be.

In this article we will look at how to set the ignition on a contact and non-contact system. The first from the very beginning of production is installed on the classics, the second appeared at the beginning of the twenty-first century. It immediately gained popularity among car owners, as it differs from the previous one in increased reliability and service life, as well as better electrical characteristics, on which sparking in the combustion chamber directly depends.

You can briefly talk about how to set the ignition on a car. The process will be discussed below. The fact is that four-stroke engines are quite picky about the moment, but despite this, set the ignition to the same Soviet ora foreign car is not as difficult as setting the ignition on Izh Jupiter 5. The latter has its own separate contact ignition system for each cylinder, of which there are two, each of which requires adjustment.

Now about the procedure itself. Naturally, you can get to the nearest service station, where this will be done using a stroboscope, but it costs money, and not every motorist has this device, so we will consider the simplest method that requires a minimum of effort, tools and knowledge.

First of all, you need to calculate the compression stroke in the first cylinder. With cotton wool, you need to plug the candle hole, and then smoothly rotate the crankshaft by the ratchet. As soon as it flies out, we turn further until the marks on the pulley and on the ebb of the front cover coincide. Some cars have three marks, each of which corresponds to AI-80, AI-92 and AI-95 in the direction of rotation. In fact, there are many guides on how to set the ignition on a particular car, you just need to take some time to search the Internet.

Back to our procedure. Setting the crankshaft to the middle mark will set the ignition advance to 5 degrees. While the crankshaft will “turn” them, ignition will already occur in the combustion chamber. Each brand of gasoline has a different time for this, therefore, the lead angle also changes.

The need to install the ignition may arise after repair, as well as after careless use of the car. ignition cango off by itself if the engine creates increased vibration. Then you have to ask yourself again: "How to set the ignition?". VAZ 2106 has the same system as described above, so there will be no problems with it. Now that the piston is at top dead center, you can set the ignition distributor to the desired position.

To do this, you need to remove it from the drive, and then install the slider with the external contact towards the contact of the first cylinder on the cover. Thus, at the end of the compression stroke in the first cylinder, a spark will be supplied to it, which will ignite the mixture. Well, now there should be no questions about how to set the ignition. After completing this procedure, it is worth starting the engine, after which, on a warmed-up unit, make a more precise adjustment.