So, our task is to understand the details and nuances when replacing the standard, “classic” contact system ignition, to a more advanced - non-contact, or as it is also called, an electronic system. And why do we need this? And then, that all "progressive mankind" represented by the owners of VAZ cars, whether it be 2101 or, if I may say so, the more advanced VAZ 2107 model, have long since switched to a contactless ignition system. There are probably only those who do not understand how to do it. I hope after reading everything will become clear.

Electronic ignition device

The VAZ 2101 electronic ignition circuit, as well as the VAZ 2105, 2106, 2107 or 2109, includes a distributor with a contactless electronic sensor and a steel shield, a switch, an open-circuit coil, spark plugs with high-voltage wires and a set of connecting wires.

The advantages of installing electronic ignition on all VAZ classics, no matter whether it is 2106 or 2107, are obvious. Practicality, stability of work, more reliable (powerful) sparking and high-quality combustion of the mixture, durability, no problems with the contact group, easier engine start - this is far from complete list. It should also be said about the practically absent breakdowns of ignition, improvement in the dynamics of the car, a slight but decrease in fuel consumption when using a non-contact system.

The disadvantages can be attributed to the rather high price of electronic ignition of the VAZ and the possible failure of the Hall sensor. Anyway, the sensor is easy to replace even on the road. In general, let's get started.

Replacing the standard VAZ ignition with an electronic one

To replace, we need the ignition kit itself with high-voltage and connecting wires, a standard set of tools plus a 38 wrench for crankshaft rotation, candles with a gap between the electrodes of 0.7-0.8 mm, designed for a non-contact ignition system, a drill with drills, self-tapping screws and hour of free time.

One caveat: when choosing a contactless ignition system, you need to consider that the model of the distributor (sensor-distributor or breaker-distributor) for different engines shaft length will vary. For power units with a volume of up to 1.3 liters, a distributor with a shorter shaft is used, and with a volume of more than 1.3 liters, with an elongated shaft. If the shaft is still caught long, instead of a short one, a washer-gasket must be installed on the distributor seat, which will help to “shorten” the shaft.

Turning the ratchet nut with a wrench, set the piston of the first cylinder to top dead center. This is achieved by aligning the mark on the crankshaft pulley with the largest mark on the engine cover. Further, having removed the distributor cover, you need to remember or mark the location of the distributor and the slider in it. This is how you will need to install them, replacing them with new ones. By the way, in sufficient detail about the installation of electronic ignition VAZ can be viewed on the video on the network.

We turn to the dismantling of the ignition coil, noticing where and which wires were attached and the fact that on the new coil, plus is designated as “B”, minus, respectively, “K”. Everything, the old one was removed, the new one was installed. Next up is the switch.

You can install it anywhere, for example, there is a place under the left headlight. If not - drill in hand and go! This is where self-tapping screws come in handy. Moment: during installation, we make sure that the radiator of the switch fits most tightly to the car body; We attach the black wire from the control unit to ground. We connect the wires with the “plus” mark from the switch and the green wire that was connected to the old distributor to the “B” coil terminal. The remaining wire from the switch and brown, also from the old ignition distributor, with the “K” terminal of the ignition coil.

Let's take the distributor. After loosening its fastening, we remove the old one and replace it with a new one. We install exactly as the old one was. Be careful with the gasket! And one more thing: you do not need to finally tighten its fastening now - a little later, adjustment may be necessary. We connect the wiring harness in the chip from the switch.

After that, you can replace the candles and wires high voltage, install the distributor cover and - it remains only to mix up the high-voltage wires. Headache in this case guaranteed! We check when connecting with the numbers on the cover of the ignition distributor! The wire coming out of the center of the distributor cap is to the coil. Well, everything, you can start.

Started up? Lucky! Nothing, next time you will definitely mess something up. Now you need to accurately set the ignition moment, tighten the distributor, and on this the installation of electronic ignition on your VAZ can be considered complete, you can forget about cleaning the contacts.

If it does not start, the reason may be in incorrect installation connecting or high voltage wires or distributor (the Hall sensor in the center must be aligned with the edge of the beginning of the window cutout in the screen), the inoperability of the switch, the ignition coil or the Hall sensor. It is also worth paying attention to the performance of spark plugs.

If it starts, but with a correctly set ignition timing, the engine is not satisfactory, the cause may be the centrifugal regulator of the ignition breaker. It is treated by replacing the weight springs with softer springs.

Now you can go on the road, not forgetting to buy a Hall sensor in reserve. It remains only to enjoy a more confident, smooth and smooth operation engine.

Each owner of the legendary classic model VAZ 2106 is well aware of all the problems associated with the operation of this car, since in most cases it eliminates them on its own. These problems include malfunctions of the contact (cam) ignition system of the VAZ 2106. Constantly burning contacts required cleaning and adjustment, due to the backlash of the bearing and distributor bushing, the engine looked like a “shake”, especially at idle. The electronic ignition system is designed to solve all these emerging problems. Electronic ignition for the six

Scheme

Scheme of the contactless ignition system VAZ 2106:
1 - sensor-distributor ignition; 2 - spark plugs; 3 - screen; 4 - proximity sensor; 5 - ignition coil; 6 - generator; 7 - ignition switch; 8 - battery; 9 - switch

Installation

first of all, it is necessary to set the TDC - 4 cylinders (we look at the position of the slider), this must be done by turning the crankshaft ratchet to the mark on the pulley, we combine marks 4 and 3 in the figure);

dismantle the distributor, candles and coil (memorizing the color of the wires suitable for the ignition coil);

laying new wiring;

install a new one high voltage coil ignition;

we set the distributor exactly as the old one was (installation of electronic ignition VAZ 2106,2103, 2107 with engines of 1.5 and 1.6 liters, slightly different from other models. These engines have different height cylinder block and, accordingly, different lengths drive shaft distributor);

we fix the switch (it is desirable to find a place on the shield of the engine compartment);

we screw in the candles and put on high voltage wires (working order 1-3-4-2);

connect the wiring as in the diagram:

How to exhibit

For work, you will need a 12-volt control light, a key for 13 and a key for the crankshaft:

Set the ignition to idle engine, with the "negative" terminal of the battery disconnected.

Set the piston of the first cylinder of the internal combustion engine to the ignition position. To do this, you need to unscrew the spark plug from it. Plugging candle hole finger and at the same time turn the crankshaft with a key clockwise.

When there is a compression stroke, the pressurized air will begin to push the finger hard - this is what is needed.

Now it is important to clearly align the mark on the pulley with the second one, which you are looking for on the timing cover. The mark in the middle means that the ignition advance is set by 5 degrees.

It happens that some cannot find labels in themselves. But in fact, there are always labels. Just wipe the surfaces well with a metal brush, add light.

After marking, you can remove the key. Wrap the extracted candle back and connect the armored wire.

The next stage of work will be timing of ignition:

Before starting, connect the "negative" terminal of the battery.

Using a 13 wrench, you need to slightly loosen the mounting nut of the ignition distributor.

Here you will need a prepared control light with two wires. We connect one output to the "mass", the second - to the low-voltage ignition coil.

Turn on the ignition by turning the key to position "I".

It is necessary to carefully turn the ignition distributor housing clockwise until the control lamp goes out.

After that, it is necessary to smoothly turn the distributor rotor counterclockwise - until the contact opens and the lamp lights up again.

Now you need to tighten the mount and check the behavior of the machine on the go.

Adjustment

Closed contact angle correction

Ignition adjustment VAZ 2106 starts with the simplest operation removing the cover of the distributor, then the crankshaft rotates until the maximum distance between it and the distributor is reached. Following this, they begin to unscrew the screws that fix the contact group on the bearing plate and between the contacts, a probe is inserted to determine and select the optimal position for the group. Ideally, everything is determined by the force applied to move the probe, which should be minimal, having found a site that meets this requirement, the position of the group is fixed by tightening the screws. The size of the gap is also important for its determination, the thickness of the probe should be 0.44 mm. It is the gap adjustment that provides required value angle closed contacts, its optimal value is 55±3°.

If the parameters correspond to the norm, then you can proceed to the second stage, which consists in adjusting the advanced ignition angle. To begin with, we determine that the distributor breaker in the type of engine under consideration needs to implement the opening moment at the same time as the spark in the first cylinder. This provides for the advance of the upper dead center piston stroke for the first cylinder by 0±1°.

Lead angle correction with stroboscope

There are several ways to adjust this indicator, which largely depends correct adjustment ignition VAZ 2106 as a whole. The method that involves the use of a stroboscope will most quickly cope with this task. The device must be connected to the vehicle electrical network, while it is necessary to dismantle and plug the vacuum correction hose from the distributor. Following this, the engine is warmed up until it holds idle speed, followed by loosening of the bolt responsible for fixing the distributor housing.

The light emitted by the strobe is directed to the pulley crankshaft, rotation of the distributor housing will achieve a position that ensures that the visible position of the mark on the pulley is opposite the corresponding marks applied to the timing cover. In this position, the distributor housing is fixed by tightening it with bolts. The presence of revolutions is of decisive importance idle move power unit in the process of adjustment. If the speed is higher, the centrifugal regulator will take part in the work, which will distort the results of the adjustment.

Faults

Cause of malfunction	Remedy
Engine won't start
The switch does not receive voltage pulses from the contactless sensor:	Do the following:
– break in wires between the gauge-distributor of ignition and switch
- Faulty proximity sensor	– Check up the gauge by means of an adapter socket and the voltmeter; faulty sensor replace
No current pulses arrive at the primary winding of the ignition coil:	Do the following:
- a break in the wires connecting the switch to the switch or with ignition coil	– check wires and their connections; replace damaged wires
- defective switch	– check the switch with an oscilloscope; replace defective switch
- the ignition switch does not work	– check, replace the faulty contact part of the ignition switch
No high voltage applied to spark plugs:	Do the following:
- Loosely seated in sockets, tips come off or oxidized high voltage wires; wires are heavily soiled or damaged insulation	– check and repair connections, clean or replace wires
- wear or damage to the contact carbon, its freezing in the cover of the ignition distributor	– check and, if necessary, replace the contact angle
– current leakage through cracks or burnouts in the cover or rotor ignition distributor sensor, through soot or moisture on inner surface lids	– check, clean the cover from moisture and carbon deposits, replace the cover and rotor, if they have cracks
- burnout of the resistor in the rotor of the sensor-distributor ignition	- replace the resistor
– damaged ignition coil	– replace the ignition coil
Spark plug electrodes or gap between them are oily does not correspond to the norm	Clean spark plugs and adjust electrode gap
Damaged spark plugs (cracked insulator)	Replace spark plugs with new ones
The procedure for connecting high voltage wires is violated to the terminals of the cover of the sensor-distributor of ignition	Connect wires in ignition order 1-3-4-2
The engine runs erratically or stalls at idle
Too much early ignition in engine cylinders	Check, adjust ignition timing
Large gap between spark plug electrodes	Check, adjust the gap between the electrodes
Engine uneven and unstable operates at high crankshaft speed
The springs of the weights of the ignition timing regulator in the distributor sensor have weakened ignition	Replace the springs, check the operation of the centrifugal regulator on the stand
Interruptions in the operation of the engine at all modes
Damaged wires in the ignition system, loose fastening wires or their tips are oxidized	Check the wires and their connections. Replace damaged wires
Wear of electrodes or oiling of spark plugs, significant soot; cracked spark plug insulator	Check spark plugs, adjust gap between electrodes, damaged spark plugs replace
Wear or damage to the contact carbon in the cover of the sensor-distributor ignition	Replace the contact piece
Strong burning of the central contact of the rotor of the sensor-distributor ignition	Strip the center contact
Cracks, contamination or burnouts in the rotor or distributor cover ignition	Check, replace rotor or cap
The engine does not develop full power and does not have sufficient resilience.
Incorrect ignition timing	Check, adjust ignition timing
Jamming of the weights of the ignition timing regulator, weakening weight springs	Check, replace damaged parts
The switch is faulty - the shape of the pulses on the primary winding ignition coils are not correct	Check the switch with an oscilloscope, replace the defective switch

The VAZ "seven" is the latest classic Zhiguli model, produced from 1982 to 2012. Moreover, the injector and electronic ignition appeared on the VAZ 2107 car already in the 90s, and all previous modifications came with a carburetor and a mechanical (contact) sparking system. Since across the countries former USSR A lot of such cars “run”, then the issue of switching to contactless ignition (abbreviated as BSZ) does not lose its relevance for their owners. He decides without special problems, you just need to buy a set of new equipment and put it on the "seven" with your own hands, so as not to spend money on car service services.

Electronic ignition design

To put a contactless system on the "classic" VAZ 2107 with a carburetor, it is advisable to study how it works. This will help you properly assemble the circuit and successfully launch it into operation. BSZ for old Zhiguli carburetor models consists of the following elements:

• distributor, it is also the distributor of the ignition system;
• high voltage coil new design(different from the old one, working with mechanical contacts);
• a switch responsible for managing the system;
• high-voltage and ordinary wires with connectors and terminals connecting the listed elements;
• spark plug.

Reference. Since the new ignition system does not have a contact group, and its operation is controlled by an electronic unit, the names “contactless” and “electronic” are equally suitable for it.

The new high voltage coil has 2 windings. The primary is made of a large cross-section conductor and is connected to the car's electrical network through an ignition lock relay. The secondary winding is wound with a large number of turns of thin wire and connected by a high-voltage wire to a distributor, consisting of the following parts:

• housing with a shaft mounted in the center;
• a movable contact (the so-called slider) is fixed at the end of the shaft;
• a cover is put on top of the body, where high-voltage wires of large cross section are connected to the spark plugs;
• there is a protrusion (cam) on the shaft, opposite which is the Hall sensor;
• a vacuum diaphragm is attached to the side, providing ignition advance.

The switch is connected by small-section conductors to a distributor and a coil, its task is to control the timely supply of a spark to the candles.

Reference. In newer versions of the VAZ 2107, where there is an injector instead of a carburetor, there is no separate switch. There is no need for it, since the on-board computer controller controls the sparking and fuel supply.

The principle of operation of the BSZ

Sparking with electronic control operates according to a fairly simple algorithm, which determines the reliability of such a scheme. When the driver turns the key in the ignition lock, the primary winding of the coil goes constant pressure from onboard network which creates a magnetic field around it. Then the system works like this:

1. The starter turns the crankshaft and drives the distributor shaft along with the slider.
2. The Hall sensor, which reacts to the passage of a metal mass nearby, registers the rotation of the shaft along the protrusion on it and sends a signal to the switch.
3. The electronic unit, on the signal of the sensor, turns off the voltage supply to the primary winding of the coil.
4. At the moment of breaking the circuit, a high voltage pulse (up to 24 kV) is formed in the secondary winding of the coil. It is sent along a thick wire to the movable contact of the distributor.
5. The slider redirects the impulse to one of the fixed contacts built into the cover. From there, voltage is supplied to the spark plug of the cylinder where the piston is at top dead center.
6. At this point, the fuel is already in the combustion chamber in a compressed state. When a spark jumps on the electrodes of the candle, it ignites.
7. The slider rotates and transmits a spark to all cylinders according to the 1-3-4-2 scheme, after which the car engine starts and starts to work.

Note. In old VAZ 2107 cars, there was no switch, and electrical circuit it was torn mechanically - the shaft cam opened the contact group.

Pros and cons of contactless ignition

On this moment 100% of cars produced using gasoline or liquefied gas as fuel are equipped with an electronically controlled sparking system. Mechanical ignition is outdated and a thing of the past. The reason is its unreliability during operation, frequent malfunctions and low spark power. Compared to contact BSZ system has the following advantages:

1. The absence of contacts whose surfaces constantly burn out from high voltage, causing the sparking power to drop sharply.
2. There are no wearing parts in the distributor of the electronic system, which had to be changed every 15-20 thousand kilometers.
3. Thanks to contactless circuit and a new design of the coil, the voltage supplied to the electrodes of the candles was raised from 18 to 24 kV. This has a beneficial effect on ignition and combustion. air-fuel mixture in cylinders.
4. Reliability in work and durability.

Reference. In the past, the owners of the VAZ "classics" quite often had to remove a protrusion burning on the surface of one of the contacts, which required a flat file. But a recess formed on the second contact, which was rather difficult to clean, so manufacturers began to make contact groups with through holes.

From significant shortcomings BSZ can be noted one - non-repairability of the Hall sensor. If mechanical contacts are cleaned, then faulty sensor you only need to change, so it is advisable to carry it with you. On the other hand, this device is very reliable in operation and serves 40-50 thousand km without problems.

Reference. Owners of VAZ 2107 cars equipped with the first BSZ sets, in addition to the Hall sensor, also had to carry a spare switch. But after 2 years, its design has undergone modernization, which is why the electronic components have ceased to fail.

Instructions for installing a contactless system

The procedure for replacing mechanical ignition with electronic is divided into the following stages:

• selection and purchase of BSZ;
• preparation of tools;
• removal of the old system and installation of a new one;
• ignition setting.

If you have not previously had to deal with the problems of sparking in classic models Zhiguli, you will have to allocate about 3-4 hours for all the work.

The BSZ factory kit for the VAZ 2107, which is commercially available, includes the following parts:

• switch with catalog number 36.3734 (it also happens to be 3620.3734);
• main ignition distributor, marking - 38.37061;
• high voltage coil, catalog number - 27.3705;
• harnesses with connectors.

Note. The distributor marking is indicated for cars with engines of 1.5 and 1.6 liters. In modifications of the "sevens" with a 1.3 liter engine, the cylinder block is smaller in height, and the ignition distributor shaft is shorter. Him Catalogue number - 38.3706–01.

On sale there is a similar contactless kit designed for Russian SUV VAZ 2121 "Niva". In it, the distributor is marked as follows: 3810.3706 or 38.3706–10. You should not buy it for the "classics", because the element differs in technical parameters although it looks the same on the outside.

Among the manufacturers producing ready-made electronic ignition kits for old VAZ models, the SOATE company, whose production is located in Stary Oskol, Russian Federation, has recommended itself best of all. Feedback from the owners of the "classics" about the company's products is purely positive.

Advice. When planning to put the BSZ on the "seven", in parallel, replace the spark plugs (brand - A17DVR) and high-voltage wires to them. They are not included in the delivery set, but for stable and economical operation of the engine with new system sparks are very useful.

What tools will be needed?

To mount the electronic unit and other elements of the BZS, you will need a simple toolkit available in the garage of any skilled motorist:

• screwdrivers with flat and Phillips slots;
• open-end wrenches 8, 10 and 13 mm in size;
• ordinary pliers;
• candle wrench, equipped for convenience with a cardan;
• hand or electric drill with a drill with a diameter of 3-3.5 mm.

Note. With the help of keys, the terminals, fasteners of the distributor and coils are unscrewed. You will need a drill to make 2 holes for mounting the switch. In some machines, you can find ready-made holes designed for mounting electronics, they are located on the left side member (in the direction of the car).

Well, if you manage to find and borrow special key, designed to turn the crankshaft VAZ 2107, grabbing the ratchet nut. Another option is to rotate the crankshaft with a conventional 30 mm open-end wrench or by turning a posted rear wheel with 4th gear engaged.

Perform installation and configuration work contactless ignition can be in any convenient place, as long as they allow weather. Because the viewing hole you do not need, then a flat and well-lit area will do.

Installation of BSZ on a car

Before installing the electronic ignition, you need to remove from the car the old system, proceeding in this order:

1. Lift the hood cover of the "seven", disconnect the battery from the on-board network and remove the high voltage wires from the candles.
2. Turn out the candles and turn the crankshaft to bring the piston of the 1st cylinder to the top dead center (TDC). This will help you with a long screwdriver inserted into candle well. Make sure that the notch on the crankshaft pulley is opposite the first mark on the cylinder block (it is the longest of the three).
3. Unlock the metal latches of the ignition distributor cover and remove it together with the wires. To be sure, put on valve cover engine mark opposite the movable contact of the slider.
4. Disconnect all wires from the distributor and a thin tube that connects it to the fitting on the carburetor. Loosen the nut holding the distributor skirt to the cylinder block and unscrew it. Remove the old distributor, making sure that the gasket is not lost (it stands between it and the block).
5. Disconnect the wires from the contacts of the high voltage coil and note where they are connected. Unscrew the coil bracket and remove it from the body.

Start the installation of the BSZ with the installation of an electronic unit equipped with an aluminum mounting plate with holes (it serves as a cooling element for the device). If there are ready-made holes on the left side member, screw the switch to them with two self-tapping screws. Otherwise, find free place near the coil, drill holes and fix the control box.

Advice. Do not place the switch under a reservoir of flushing fluid windshield. If it leaks, it will flood the delicate electronics and the ignition will stop functioning.

Mount the elements of the contactless system in the following sequence:

1. Take a new distributor, remove the cover from it and put on the gasket. Install it in the socket on the cylinder block so that the moving contact is opposite the chalk mark drawn on the engine valve cover. Lightly press the skirt of the distributor with the fixing nut so that it does not accidentally turn.
2. Screw the high voltage coil back into place (the fasteners match). Connect the wires from the ignition lock relay, tachometer and switch to its terminals. The wire coming from contact "1" of the electronic unit is connected to the terminal marked "K" of the coil, and the wire from contact "4" is connected to terminal "B".
3. Having set a gap of 0.8-0.9 mm between the electrodes of the candles, screw them into the holes of the cylinders. Put the cover on the distributor and connect all the high voltage wires, including the central one leading to the coil. Connect the vacuum tube, after which you can start the engine and adjust the timely sparking.

Advice. When mounting a high-voltage coil, the terminals are interchanged, which causes some inconvenience. The issue is solved by loosening the nut of the mounting clamp and turning the coil body by 180 °, after which it can be put in place.

Stages of ignition installation in photos

The position of the slider with aligned marks Before setting marks, you need to remove the distributor cover Unscrewing the wires of the old distributor Removing the central high-voltage wire from the coil When all the wires are removed and the fastening nut is unscrewed, the distributor is removed from the block After installing the new coil, the wires are connected to the same terminals guided by the numbers on the cover The switch is mounted on 2 self-tapping screws to the side member

Video on replacing the ignition with electronic

Ignition Setting Instructions

If you clearly followed the instructions given, connected all the wires according to the diagram and did not knock down the combined marks, then the motor will start without problems. To adjust the ignition, you need to achieve stable operation engine, so first warm it up for a few minutes, preventing it from stalling by pressing the gas pedal.

Advice. If the engine start fails, and even pops do not appear when the starter is turned on, then you probably messed up with the wiring. Check everything again according to the diagram attached to the factory set of electronic ignition parts.

There are two ways to perform adjustment on a warm engine:

• without the use of special devices - "by ear";
• precise adjustment with a stroboscope.

A stroboscope is a device with a light bulb that flashes simultaneously with the transmission of an impulse by the Hall sensor. When the included stroboscope is brought to the flywheel of the crankshaft with the engine running, the position of the notch becomes visible. Hence the possibility of fine adjustment.

To set up, connect the power of the stroboscope to battery, and a thick vein - to high voltage wire candles of the 1st cylinder. Loosen the distributor nut and bring the flashing lamp to the pulley. Slowly turn the distributor housing until the notch on the pulley is opposite the short notch, then tighten the nut.

Setting folk way"by ear" is performed like this:

1. Start the engine and loosen the nut holding the ignition distributor.
2. Smoothly and slowly rotate the distributor within 15 °. Find the position where the motor runs most stably.
3. Tighten the fastening nut.

Advice. When you turn the ignition distributor by hand, try not to touch the high voltage wires so that you do not get an electric shock. The best option- take hold of the body of the membrane mechanism, where the tube from the carburetor is connected.

It is quite natural that after installing a contactless ignition system idling engine will rise to 1100-1200 rpm due to increased power sparks. Set the rate to 850-900 rpm by tightening the idle screw on the carburetor and focusing on the tachometer. On VAZ 2105-2107 carburetors of the Ozone type, this screw is located in the lower section of the unit with right side and different big size. In VAZ 2108 carburetors of the Solex type (these were also placed on the "seven") there is a long plastic handle protruding to the right (in the direction of travel). The second screw, which regulates the composition of the air-fuel mixture, cannot be turned.

Advice. If during hard pressing a loud knock is heard on the accelerator from the engine, then you set the ignition timing too high and the mixture flares up earlier than necessary. Loosen the distributor nut and rotate the housing a couple of degrees clockwise.

Video about adjusting the ignition on the "classic" Zhiguli

The best indicator of the successful installation and configuration of a contactless ignition system is to check the VAZ 2107 on the go. It is worth driving a car for several kilometers to check when various modes- acceleration, movement in a straight line and coasting with the gear engaged. You will surely like the behavior of the machine, and the hateful cleaning of contacts will be forgotten forever.

Using electronic ignition on the VAZ 2107 is much more efficient than contact. In order to understand what benefits come from installing a contactless system, it is necessary to briefly consider the history of its development. And, of course, it is worth starting with the contact system, it was from it that development began. It is also necessary to carefully study the main components of the ignition, to determine what functions they perform. It is also worth noting that the installation of electronic ignition allows you to achieve more high performance power and reliability of the entire vehicle.

The main elements of ignition systems

The main elements include such as spark plugs, armored wires, coils. These are nodes that are present in any system. True, they have some differences. Of course, candles are used on all engines the same. If we are talking about VAZ cars. Armored wires can be both rubber and silicone sheathed. They have both pros and cons. For example, silicone is more prone to destruction of the inner conductive layer.

And wires in a rubber sheath do not tolerate well low temperatures- they become hard, lose their elasticity. even though they have the same functions, they are also different. If the breakdown voltage in the contact system should be 25-30 kV, then electronic system ignition works at a value of this parameter of the order of 30-40 kV. And if in these two systems one coil is used, then microprocessor ones are equipped with two or four. One coil for 1-2 candles.

Contact system

This design was popular until the mid-90s of the last century. But she went into oblivion, as morally obsolete. It is based on an ignition distributor, in which the rotor has a small section made in the form of a cam. With its help, an interrupter is set in motion - two metal plates, isolated friend from friend. They have contacts that close and open under the action of the cam.

The reliability of this system depends directly on the state of this contact group. The fact is that the contacts switch a voltage of 12 volts, therefore, the risk that they burn is very high. They are also in contact, therefore, there is a mechanical effect. Hence the decrease in the thickness of the contacts, hence the increase in the gap between them. For this reason, you need to constantly monitor the status of the contact group. But the electronic ignition system allows you to get rid of such minor flaws.

Contact transistor

A little more perfect this system but still far from ideal. As in the previous type, there is both a distributor and a contact group. With a slight difference - it switches a small voltage, less than 1 Volt. More to manage electronic key assembled on a semiconductor transistor and is not required. The advantage of this system becomes clear from the above. But the disadvantage still remains - there is a mechanical effect. Consequently, the contacts gradually wear out and require replacement. Do not ride for a long time without timely maintenance. Although this is almost electronic ignition on the VAZ 2107, it is still far from the BSZ.

Contactless system

But the contactless system is closer to the ideal. It does not have a contact group, which is the most vulnerable spot. Therefore, it does not need to be serviced. All functions of the interrupter are assigned to those working on the Hall effect. It is mounted inside the distributor, at the very place where the contact group stood. For normal operation of the ignition system, it is necessary that the sensor function correctly. And he will not be able to work without a metal skirt with slots that rotates in the area of ​​​​its active element. The electronic ignition circuit has a high degree of reliability, largely due to the fact that there is no mechanical interaction of elements in it.

Hall Sensor

When the engine is running, the rotation is transmitted to the axis of the distributor. A slider rotates in its upper part, which distributes high voltage from the coil to the spark plugs. At the bottom is the previously mentioned metal skirt. It is located in such a way that it rotates in the field of action of the sensor. Consequently, the latter, under the influence of the metal, gives out an impulse. And there are four such jumps per revolution (according to the number of cylinders). Then this impulse goes to the switch. Installation of electronic ignition is carried out quite quickly, as it contains a small number of elements. Among them, it is worth highlighting the switch, but it will be discussed later.

microprocessor system

This type of system is the most perfect. The reason is that it works by processing data from many sensors. It is actively used only on injection engines, since only in them it is possible to control the fuel supply. Absolutely all parameters of the engine operation are controlled. The signals from the sensors are sent to the electronic unit management is the brain of the whole system. It is based on a microprocessor that can perform thousands of operations per second. This type of electronic ignition circuit is quite complex and also requires programming. After all, the microprocessor must know what the user wants to receive from it with a certain type of input signal.

Sensors in a microprocessor system

As it was said in this type ignition system, all parameters must be analyzed. In particular, with increasing toxicity requirements, lambda probes began to be used with might and main. The microcontroller circuit of the VAZ electronic ignition allows you to connect several types of readers. Of course, the use of lambda probes in cars is controversial, because it is worth looking at how many harmful gases and liquids are emitted by enterprises in environment. But legislators in Europe are the last to worry. Injector sevens comply with Euro-2 and Euro-3 toxicity standards. Unfortunately, at the moment, Euro-6 standards apply.

For normal operation of the engine, control the speed, crankshaft speed, air entering the fuel rail. The content of CO in exhaust system, the position of the throttle flap relative to the starting point is determined. In addition, the presence of detonation in the engine is determined every second, adjustment is made. And all this is done by a system that is made on a microprocessor. He conducts thousands of operations in order to give timely signals to executive mechanisms(e.g. injector solenoid valves). Since it is quite difficult to install this type of electronic ignition on carbureted engines, it is still worth stopping at the use of BSZ.

Switch

This element is the predecessor of the microprocessor electronic control unit. The switch sends a signal to the ignition coil. The only sensor that is involved in its work is the Hall. With its help, the moment of the beginning of the voltage supply is determined. True, the signal level that comes from the Hall sensor is very small. If it is applied to a high-voltage coil, then the output voltage will not be enough to ignite a spark. By the way, the electronic ignition 2106 can be easily mounted on the entire the lineup since its installation is the same.

Therefore, it becomes necessary to use a buffer node - an amplifier. It is these functions that the switch performs. During its operation, a large amount of heat is generated, so the installation of the unit should be approached with all responsibility. It must be mounted so that its rear part fits as tightly as possible to the car body element. Otherwise, a quick failure of the semiconductor elements of the system is possible. The plug with which the switch is connected must be protected from dust and moisture.

How to install a distributor

Now it’s worth talking about how to mount and configure electronic ignition for 2107. Installing a BSZ distributor on a classic is similar to the procedure for installing a simple contact system distributor. First, align the pulley to the marks on the engine block. There are three marks that determine the value of the lead angle - 0, 5, 10 degrees. Install the pulley opposite the mark that corresponds to the value of 5 degrees. It is it that is most optimal when working on gasoline with octane rating 92.

Now, having removed the distributor cap, install the slider so that it is opposite the output that goes to the candle of the first cylinder. Now it remains only to install the distributor housing in its place and screw on its fastening nut. Next, put the distributor cap in place, clamp it with spring clips. That's all, the initial ignition installation is completed, now you can start fine tuning.

Setting the advance angle

It should be noted right away that adjustment “by ear” can be carried out, but only in the most emergency cases. For example, if a breakdown caught you on the way and you need to get to the place of repair. In other cases, you need to use at least simple means- for example, an indicator on the LED. It is best if the electronic ignition on the VAZ 2107 is regulated using a stroboscope or a motor tester.

If you have a stroboscope, then the task of setting the ignition timing is simplified many times over. By the way, such a device can even be assembled from an LED flashlight. Install the control output c on the armored wire of the first cylinder. Now you need to direct the strobe beam to the crankshaft pulley. Of course, the engine must be started. By rotating the distributor housing, you ensure that the mark on crankshaft passed opposite the serifs corresponding to it on the block clearly at the time of the flash.

What does the installation of BSZ on the seven give?

And now the praise of the contactless system will begin. It's no secret that electronic contactless ignition is much better than its predecessor. The reason for this is that there is no need for frequent monitoring of the distributor and breaker. What does a modern driver need? For his car to drive, but not require him to have knowledge in the design of the car and its systems. Notice what more modern machine, topics less owner interfere with her work. The maximum is the replacement of fluids and filters.

And BSZ took a step towards the drivers, she saved them from the need to constantly check the gaps, adjust the lead angle, and clean the contacts. Now a fairly large number of people who can distinguish a gearbox from a piston with great difficulty. Will he be able to do all the above procedures? Exactly. Therefore, electronic contactless ignition can increase the reliability of the car. And the need for frequent adjustments disappears.

findings

Analyzing all the pros and cons, one can come to one conclusion - what more modern system ignition, the more reliable and efficient it is. But if you have a carburetor seven, then for installation microprocessor system you will need to upgrade the fuel supply. To do this, you need to install a pump, a ramp, nozzles, an electronic control unit, as well as a bunch of sensors to ensure normal operation. But a simpler way out is to simply mount the electronic ignition on the VAZ 2107. And the price is not very much, and the time spent too.

It should be noted right away that the installation of electronic (non-contact) ignition on the VAZ “classic”, despite some investments, is economically justified. As a result of the replacement, some savings in fuel consumption are achieved due to good start in the cold season, more stable idling and more precise control of the ignition timing.

Although BSZ kits (non-contact ignition system) are now being sold, it is still worth listing the details necessary to install the VAZ 2106, 2101,2104, 2107, 2105, 2103 electronic ignition: these are:

• ignition coil (027.3705 or equivalent 27.3705);
• distributor with Hall sensor (38.3706);
• switch VAZ 2108 (036.3734);
• a set of candles (A 17DV-10);
• wiring harness (ignition beam VAZ 2108).

Ignition installation VAZ 2106, 2101,2104, 2107, 2105, 2103

• first of all, it is necessary to set the TDC - 4 cylinders (we look at the position of the slider), this must be done by turning the crankshaft ratchet to the mark on the pulley, we combine marks 4 and 3 in the figure);

• dismantle the distributor, candles and coil (memorizing the color of the wires suitable for the ignition coil);
• laying new wiring;
• install a new high-voltage ignition coil;
• we set the distributor exactly as the old one stood (installation of electronic ignition VAZ 2106,2103, 2107 with engines of 1.5 and 1.6 liters is slightly different from other models. These engines have different heights of the cylinder block and, accordingly, different lengths of the distributor drive shaft);
• we fix the switch (it is desirable to find a place on the shield of the engine compartment);
• we screw in the candles and put on high voltage wires (working order 1-3-4-2);
• connect the wiring as in the diagram:

Adjustment

The initial setting of the VAZ ignition angle is as follows:

1. it is necessary to set the crankshaft pulley to the ignition advance mark of 10 degrees.
2. we set the distributor exactly so that the Hall sensor looks at the beginning of the distributor slot.
3. start and warm up to operating temperature.
4. try to start hot (if the ignition is too early, the starter will not turn as it should)

Test drive: you need to pick up a speed of 30-40 km / h, turn on 4th gear and let full throttle. You should hear the ringing of “fingers” for 2-3 seconds, and then the engine should pick up speed evenly. If the ringing continues longer, it is necessary to advance the ignition later by turning the distributor slightly counterclockwise. If there is no ringing, you can do it a little earlier - by turning it clockwise.

Dual-circuit electronic ignition on the VAZ 2107:

Why is there no mention of a stroboscope here?

The fact is that experts in practice do not use a stroboscope due to the constant stretching of the chain on the engine. Even a new chain for 10-15 thousand mileage, after being tightened with a tensioner, stretches so that the marks on the motor do not match, so it is impossible to accurately set the ignition with a strobe.

Finally. Installation of electronic ignition vaz 2107, with injection engine NOT POSSIBLE, because it already costs. If a wiring harness was installed from the VAZ 2108 and the car does not start, then most likely the switch and EPHX connectors were mixed up, they are identical.