VAZ 2107 - ignition adjustment. How to set the ignition

On vehicles VAZ 2107 ignition adjustment is carried out in several ways. The reason for this - the various systems that were equipped with motors. For example, old cars had a contact ignition system, newer ones (carburettors) were already coming off the conveyor with an electronic contactless. Well, in the 2000s, they began to inject injectors into the "seven", so I had to use a microprocessor ignition system. Let's first understand what features are available in each of these systems.

Contact system

This is the most unreliable and old system, which was used not only on cars, but also on motorcycles, chainsaws, mopeds. On vehicles VAZ 2107 ignition adjustment of this type is associated with certain difficulties, you need before the procedure to check the gaps of the contact group and its general condition. The advantage of her one thing is simplicity and cheapness. But it depends on which side to look at. For example, take a contact group, which is located in the trambler and serves to feed the coil signal. There are no complications in the design, everything is simple - two contacts that close under the action of a springy plate and open when the eccentric shaft of the switch starts to rotate.

Way of adjustment of contact ignition

And now we'll talk about how to put the ignition on VAZ 2107 with a contact system, there will be no difficulties with this case. But there are too many procedures to be performed before proceeding directly to the adjustment. It is necessary to take into account the state of the elements of the system. The same contact group has a bad property - it not only wears out, but also is covered with carbon. Switching is not very high voltage is carried out by this node, but it is enough to create a spark that spoils the surface of contacts.

First check the gap between the contacts of the breaker, it should be within the permissible limits. If it is smaller, then the spark will not form. Using the key on the 38 crank the crankshaft until it coincides with the mark on the one on the engine block. After that, put the slider of the toggle across from the contact that corresponds to the first cylinder. Install the distributor in place, but do not tighten the lock. Start the engine and, connecting the stroboscope, make sure that the ignition is set as accurately as possible. Here's how to put the ignition on the VAZ 2107 with a non-contact system.

Non-contact ignition system

In this system, the picture is more pleasant - there is no contact site. Instead, it has a sensor that works on the Hall effect. A great device, which is famous for its high resource and reliability. The reason is one - there is no physical contact in the ignition distributor. The impulse is applied to the coil, they are transformed and act on the electrodes of the candles. But there is one feature: the sensor produces a very weak signal.

If you just put it directly on the coil, then the effect of this will not be absolutely any. The signal level simply does not suffice to excite the primary winding. Consequently, there will be no secondary high voltage (and it is over 30 kV there). To increase the signal, it is necessary to use a buffer node - a switch that is responsible for the normal ignition of the VAZ 2107. The carburetor must be perfectly tuned so that there are no problems with the operation of the motor. In the rest, the BSZ starts working immediately, without any adjustments to the gaps.

Adjustment BSZ

Carried out on the car VAZ 2107 ignition adjustment is quite simple, by analogy with the contact system all you need to do. But it is worth checking out a few points that affect the quality of the settings:

1. Is the carburettor adjusted correctly?
2. Is the switch good?
3. Are there any wiring interruptions?
4. Is the coil correct?
5. Is the condition of the candle electrodes good (what is the clearance)?
6. Is a non-contact Hall sensor compatible?

After having inspected and verified that everything is in order, you can put the crankshaft on the marks. Then put the distributor slider opposite the lid contact corresponding to the first cylinder. Now mount the trampler, start the motor. Do not forget to put the lid on. Using a strobe check the quality of the adjustment.

Microprocessor control

This system is even more promising, it is mounted exclusively on cars with injection injection. The advantage of it is obvious - there are no rubbing elements, the control unit, as well as a bunch of sensors, are responsible for the operation of the engine. It is worth noting that the simple and difficult at the same time is the ignition of the VAZ 2107, the injector if installed in the fuel system. No need for intervention, all the parameters of the work are monitored by a computerized system, and in the automatic mode there is a change in characteristics - this is undoubtedly a plus.

But there is one big disadvantage - the cost of maintenance is extremely high. In addition, it is often impossible to make a clear diagnosis for a breakdown. Symptoms are the same for the sensors, it is even difficult to determine the breakdown by the brute force. But most importantly - the injector is demanding to clean air and gasoline. For example, the air flow sensor can very quickly fail if you even touch it with your finger. Not to the body, but to the active element - platinum thread (grid), installed inside the device.

Adjusting the microcontroller system

Here you can say one thing - as such, there is no provision for adjustments. The reason is that when you turn the ignition key on the VAZ 2107, the voltage is applied to the electronic engine management system. In this case, there are many processes that affect the operation of the car. Notice: a hum is heard from behind - the petrol pump started, because there was a small pressure in the fuel rail and it needs to be increased. The control unit receives several more signals from various sensors.

Thus, the DMRV signals that air is not being expended. A crankshaft speed sensor - that there is no scrolling. But these are the signals that come to the ECU initially, at the moment of scrolling the starter everything changes. The microcontroller starts to see the new parameters, and then takes the data from the fuel card, which is embedded in the ROM. This card is responsible for all the parameters of the engine, it is with its help is on the VAZ 2107 ignition adjustment.