The VAZ-2106 car has been out of production a long time ago. However, despite this, you can find a huge variety of these cars on Russian roads. Their most experienced owners are taking all possible measures to improve the design of the car and make upgrades that bring the vehicle into at least approximate compliance with modern standards. One type of such tuning is the installation of an electronic ignition system.

Which ignition is better: contactless or contact?

Contact ignitions are obsolete, but are still used in older cars. On rear-wheel drive VAZ models, contactless was first installed on 2107.

Let's look at the differences between contact and non-contact ignition:

Advantages of contactless ignition:

• since there is no contact group in the distributor, sparking occurs clearly;
• long coil life;
• at medium engine speeds, BSZ creates a spark 4 times more powerful than contact ignition. This is especially useful if the spark plugs are dirty, as a spark will still be produced;
• performs its functions perfectly even in cold weather;
• if the voltage in the electrical network is low, then sparking will still occur;
• thanks to the powerful, stable spark of the candles, the fuel-air mixture ignites faster;
• if BSZ is installed, then fuel consumption decreases and engine power increases;
• improved vehicle acceleration dynamics;
• BSZ is easier to maintain because the device has no moving parts.

What's the result?

Taking into account the above information, it becomes clear that in order to obtain acceptable fuel consumption and dynamics, as well as to increase engine life, it is necessary to regularly check the correctness of the OZ. It is also recommended to promptly correct any problems with the ignition system.

Also, some experts specifically recommend replacing the contact ignition system with a non-contact one, which is more accurate and efficient and does not require frequent adjustments and settings. We also recommend reading the article on how to determine for yourself whether the ignition is early or late. In this article, you will learn about the main signs that indicate that the ignition is late or early.

This solution also has disadvantages, but it can increase engine efficiency, reduce fuel consumption, etc. Finally, we note that in practice, for cars such as the VAZ 2106, 2107 and other models, contactless ignition can be a completely justified solution, since it greatly simplifies the operation of the vehicle.

Sources

• https://bumper.guru/klassicheskie-modeli-vaz/elektrooborudovanie/zazhiganie/kak-vyistavit-zazhiganie-na-vaz-2106.html
• https://fastmb.ru/autoremont/541-ustanovka-zazhiganiya-na-vaz-2106.html
• https://asx-club.su/doityourself/vaz-2106-2107-zaziganie-i-ego-pravilnaa-regulirovka.html
• https://avtoohaker.ru/drugoe/poetapnaya-instrukcziya-kak-vystavit-zazhiganie-na-vaz-2106-svoimi-rukami
• https://carnovato.ru/kak-vystavit-zazhiganie-na-vaz-2106/
• https://KrutiMotor.ru/zazhiganie-vaz-2107-2106-2103-regulirovka-zazhiganiya-nastrojka/

Non-contact ignition system device

The BSZ device for carburetor engines consists of:

1. Distributor. This is a device that is responsible for creating a spark at the right moment. It is also called the ignition system distributor.

   

2. High voltage coil. This element in the ignition system receives low voltage from the battery, converts it and supplies high voltage. Therefore, high-voltage wires come from it.

   
   The coil consists of two windings. The primary one is made of a large cross-section wire (connected to the electrical part of the car via the ignition switch relay), the secondary one is made of many turns of thin wire (connected with a high-voltage wire to the distributor).

3. Switch. This element of the contactless ignition system is responsible for the formation of a spark. In simple words, a switch is a signal amplifier. The switch is only available in the ignition system of internal combustion engines with a carburetor. By the way, SOLEKS is considered the best carburetor. On injection VAZ 2107, as well as on others, a switch is not needed, since its functions are performed by the on-board computer controller.

   

4. High voltage and normal wiring. High voltage wiring must meet heavy insulation requirements.

   

5. Terminals. Serve for connections and must be strong.

Electronic and contactless ignition systems are the same device. It got its name due to the absence of a contact group in the system design. The ignition switch also has a contact group, which is a common cause of engine failure.

Distributor device:

• frame;
• shaft;
• cam;
• moving contact (slider).

Electronic ignition connection diagrams: VAZ 2101-VAZ 2107

Scheme of a contactless ignition system for VAZ cars:

1 - switch; 2 — ignition coil (bobbin); 3 — distributor; 4 — ignition key; 5 - Hall sensor.

How contactless ignition works

The sequence and principle of operation of the BSZ is as follows:

1. The driver turns the ignition key.
2. The circuit is closed and constant voltage from the battery is supplied to the primary winding of the ignition coil. The energized primary winding forms a magnetic field around itself.
3. When the starter starts, it begins to rotate the crankshaft of the internal combustion engine and rotates the shaft, which is located inside the distributor along with the slider.
4. The hall sensor detects how the distributor shaft rotates (along the protrusion on the shaft) and transmits a signal to the switch.
5. The electronic unit turns off the voltage supply to the primary winding based on the signal from the Hall sensor.
6. When the voltage supply circuit is interrupted, at that moment a high voltage pulse of up to 24 kilovolts appears in the secondary winding of the coil, which is transmitted through a thick wire to the slider (the moving part of the distributor).
7. Fixed contacts are built into the roof. The runner throws an impulse onto one of these stationary contacts. From the contact that received the high voltage pulse, it is transmitted through high-voltage wires to the spark plugs of those cylinders in which the pistons are at top dead centers.
8. When voltage is applied to the spark plug, the working combustion chamber of the cylinder already contains fuel and air in a compressed state for ignition.
9. The distributor slider rotates to spark all spark plugs according to a certain sequence pattern: 1-3-4-2. Depending on how to install the slider, the entire operation of the system depends, early ignition or later, we learned to determine in another material.
10. The car engine starts.

ECMs are sometimes interchangeable, but sometimes they are not repairable.

Diagram of an outdated VAZ ignition system (without switch)

1 — distributor (distributor); 2 - breaker; 3 - capacitor; 4 — ignition coil (bobbin); 5 - battery; 6 — ignition switch; 7 - spark plugs.

This scheme is in systems where there is no switch. The circuit is broken mechanically using a breaker.

Disadvantages of contact ignition:

1. The contacts burn and oxidize, which reduces the power to create a spark.
2. There are wear parts that are recommended to be changed every 20 thousand km. mileage
3. Converted power in contact systems is up to 18 kilovolts. For electronic or contactless ones - up to 24 kilovolts.

Disadvantages of contactless ignition:

• The Hall sensor cannot be repaired. Working service life up to 50 thousand km. mileage

  

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Adjustment: how to set

It is recommended to use a special tool - a strobe light - to adjust contactless ignition. But if it is not there, you can use the following method.

1. We set the distributor slider: unscrew the first spark plug, plug the hole with a finger and turn the crankshaft pulley. If air begins to press on your finger, it means you are on the compression stroke. At this moment, position the distributor so that the slider faces the first cylinder.
2. Seize the moment of ignition. To do this, connect the central wire from the coil to the spark plug and short it to ground. Turn the distributor against the movement of the slider until the spark jumps from the spark plug. This point should be in the area where the slider interacts with the first cylinder.
3. Set the ignition timing completely: with a warm car in second gear, give the gas sharply to the floor. When detonation is heard, set it later, if not, then set it earlier.

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Selection of BSZ

When purchasing a new BSZ, you should pay attention to the presence of the components of the entire kit. The factory kit should contain:

1. Distributor (main distributor). The code for engines 1.5 and 1.6 is 38.37061. For 1.3 engines, the number will be 38.3706–01, because the height of the 1.3 engine block is lower and the distributor shaft is shorter.
2. Switch number 36.3734 or 3620.3734.
3. High voltage coil (reel). Marking 27.3705
4. Thin wires with connectors.

In appearance, the BSZ kit for the VAZ 2121 NIVA is very similar. But it’s better not to install this kit on a VAZ 2107 or a VAZ 2106, because the characteristics of the “six” and “seven” are very different from the “Niva”. Distributor brands for Niva: 3810.3706 or 38.3706–10.

The best manufacturer of electronic ignition systems for old VAZ cars is. The production capacity base is located in the city of Stary Oskol. According to reviews from car owners of classic BSZ SOATE models, this is an excellent option.

Do you know where the engine number is in your car?

What is the advantage of the electronic system

The world's leading manufacturers abandoned the contact system back in the eighties of the 20th century. AvtoVAZ installed these mechanisms until the nineties. Today they are no longer installed on any modern car. And there are four good reasons for this:

1. The contacts required regular maintenance. As a result of the action of the spark, they burned out and had to be carefully cleaned.
2. The classic system was subject to wear and tear. We had to replace it with new parts every 15 thousand kilometers.
3. Due to bearing wear, the engine was unstable.
4. The contact system led to stretching of the balancer springs.

These problems arose one after another, leaving the car owner unable to breathe. The spark power regularly decreased, the engine began to work worse, and consumption increased significantly. Modern electronic ignition systems of the VAZ 2106 operate much more stable and durable. The spark is powerful and the fuel mixture ignites better.

Note : when choosing a specific BSZ kit, carefully read the box for which car it is intended for. You also need to ensure that the distributor can ensure the operation of your particular motor. Different distributor models can be very similar to each other in appearance. But under no circumstances should you install a distributor intended for another engine.

Experienced car enthusiasts believe that the most reliable for Zhiguli are the contactless ignition system kits for the VAZ 2106 from SOATE. You can learn more about choosing a specific kit in the following video:

Installation of contactless ignition for VAZ 2107, 2106

To install the BSZ with your own hands, you will need the following tools:

• Screwdrivers (flat and Phillips);
• Open-end wrenches 8, 10, 13 mm;
• Pliers (pliers);
• Candle key;
• Drill or screwdriver with a drill diameter of 3-3.5 mm. You will have to drill two holes in the body to secure the switch.
• A special wrench for rotating the crankshaft of an internal combustion engine or a regular open-end wrench of 30 mm.

An inspection hole for installing the ignition is not required. Here, in fact, is the procedure for removing the old contact ignition:

1. Open the hood, disconnect the battery and disconnect the high-voltage wires from the spark plugs.
2. Unscrew the spark plugs.
3. Rotate the engine crankshaft until the piston in the first cylinder reaches top dead center (TDC). You can use a long screwdriver or wire to check where the piston is located. Make sure that the mark on the engine crankshaft pulley coincides with the very first long mark on the cylinder block.

   

4. Disconnect the latches of the distributor cover and remove it with the wires. Draw a mark on the valve cover opposite the slider.
5. Disconnect the hose coming from the carburetor and all distributor wires.
6. Unscrew the fastening nut and remove the distributor along with the gasket.
7. Unscrew the coil mounts (remember which wires are attached where) and remove it.

   

The procedure for installing contactless electronic ignition on a VAZ 2106-2107.

1. Drill and attach the commutator next to the coil. But, do not place it under tanks with liquid.

   

2. Remove the cover of the new distributor and put on the gasket.

   

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3. Install into the seat for the distributor so that the moving contact is opposite the drawn mark on the valve cover. Do not immediately tighten the nut all the way.

   

4. Install the new coil where the old one was. The wires from the ignition switch relay, tachometer, and switch must be connected to the reel terminals. The wire from the electronic unit number 1 is connected to the coil terminal marked “K”, the wire from the 4th contact is connected to the coil terminal marked “B”.

   

5. Check the gaps of the spark plugs (should be 0.8-0.9 mm) and screw them in place.

   

6. Snap the distributor cover and connect the high-voltage wires (the central one from the coil and 4 wires to the spark plugs). We connect the wires to the spark plugs strictly in accordance with the designations.

   

7. Connect the vacuum hose.

After installation in the correct sequence, we start the engine and begin setting up the ignition. If after installing a new electronic contactless ignition the engine does not start, you should check the correct connection of the coil wires and the high-voltage wires to the spark plugs. If the wires are normal, then the marks are not aligned.

Checking the ignition angle while the vehicle is moving

It is best to check the functionality of the ignition system after any adjustment while driving. This is due to the design features of the distributor and the octane number of the gasoline used. It happens that the ignition angles set according to the marks do not provide sufficient dynamics and throttle response. Adjusting by ear according to the beginning of detonation will help:

• We accelerate the car to a speed of 45-50 km/h on a flat section of the road;
• We turn on direct transmission (fourth on the VAZ 2106) and press the gas pedal all the way;
• A characteristic ringing sound (detonation) should appear, which will disappear after 2-3 seconds, and the acceleration will be smooth and powerful without failures;
• If detonation does not disappear throughout the entire acceleration, then the ignition angle is “early”;
• The complete absence of ringing and sluggish dynamics indicate a delayed spark in the cylinders;
• We adjust the position of the distributor in place, turning it by 3-5 degrees;
• When the adjustment is completed, the position of the distributor body relative to the block is marked with a mark or paint.

Ignition adjustment work should be carried out regularly. The service interval for a simple contact ignition system is 15,000 km, for an electronic one - twice as long. The condition of the spark plugs and high-voltage wires is also regularly checked. All setup operations can be easily done independently; a garage is not needed for this. The skill of independently repairing the ignition of a VAZ 2106 will always come in handy on a long journey or in winter, when problems arise with starting.