How to make a straight angle of 90 degrees. How to set the ignition advance angle. Contactless ignition system

What is the ignition advance angle - is it a yaz? Is this a certain attribute of ancient cars or something unshakable, akin to the worldy gravity? Most modern car owners are unknown. All car systems are controlled by numerous controllers, and therefore timely sparking in the engine cylinders entirely on their conscience. Meanwhile, the country runs a huge number of unfamiliar with processors and other chips. Therefore, Questions like "How to adjust the uzov?" Sound to this day.

It is always nice to respond to technical issues. But first you have to remember some "incendiary" terms.

Terminology

Barrier-ignition distributor - an electromechanical device that ensures timely supply of high voltage pulses. Often it is called drabler.

Ahead of ignition - Inflammation of the working mixture in the cylinder earlier than the compression tact will end.

Ignition Guide (UAZ) - The angle of rotation of the crankshaft of the engine from the position corresponding to the appearance of the spark on the candle until the piston arrives in the upper dead point.

Contact ignition system - The system in which the switching of the ignition coil is provided by a mechanical interrupter.

Contactless ignition system - The system in which the switching of the ignition coil is provided by an electronic module controlled by an electronic crankshaft position sensor - for example, a Hall sensor (VAZ-2108) or magnetoelectric (GAZ-2410).

Breaker Ignition Systems - Mechanical Switch in a rubber, directly connected to the primary chain of the ignition coil.

Runner- The element of the traver, alternately transmitting high voltage from the ignition coil to high-voltage wires connected to the engine ignition candles.

Corner of the closed state of contacts (UZK) - The value showing how long the contacts of the mechanical interrupter must remain closed. For UZK, is about 55 degrees. The correctly selected UZK gives the ignition coil the ability to gain the desired energy and completely give it to the spark plug.

When and why you need to customize the ignition?

First, a little theory. If the working mixture in the cylinders burned instantly, then there would be no problems with ahead in principle. Ignite it at the top dead point - and all okay. But the mixture burns not instantly: it requires milliseconds. In this case, the actual rotation frequency of the crankshaft, of course, is inconsistent. Therefore, it is impossible to stupidly catch the mixture at the same time at different modes of the motor operation: it will burn either too early or too late. The result will always be disappointing - the engine is badly pulling, heats up, it works unstable, detonates, etc.

In particular, if you start to "spoke" too early ( big yaz), The pressure of gases will increase dramatically until the piston arrives in the upper dead point, preventing its movement. Because of this, the power will decrease and efficiency will deteriorate, it will lose the pickup and will twitch on small turns. With late sparking ( small yaz) The mixture will burn for a long time with an expanding volume, and therefore gas pressure will be significantly lower than the calculated one. Power and economy will be lowered, and the motor is strongly, since the cutting of the mixture will go throughout the entire expansion tact.

The method of treatment is one - to adjust the working mixture according to the rotation frequency and the load on the engine. In addition, the UAZ adjustment may be required when moving to. By the way, on very ancient cars (at the beginning of the last century), the moment of ignition regulated the driver: a special handle was provided. But soon she disappeared, as the motor got a rubber with a centrifugal mechanism inside.

The centrifugal control contained, as a rule, a pair of weights balanced by springs. With an increase in the frequency of rotation of the weights, the support plate was rotated and rotated the reference plate on which the interrupter was located. The higher the speed of rotation, the stronger the weights are diverged and the higher the uzov becomes.

Further pursuit of economy added to the assistants to the centrifugal regulator of his vacuum colleague. The fact is that with an increase in the load increases and filling the cylinders of a combustible mixture, since the driver is stronger than the accelerator. In this case, the percentage of residual gases in the working mixture decreases, which contributes to an increase in the combustion rate. Consequently, the uz should be reduced.

On the contrary, with a decrease in the load on the motor, the cylinders decreases, the content of residual gases is growing, and therefore the working mixture will burn slowly. Woz in this case should be increased. This task and solves the vacuum controller, which tracks the vacuum in the intake pipeline of the engine. The higher the load, the lower the vacuum, and vice versa. In most classic motors, centrifugal and vacuum regulators work together.

If you have questions - ask!

How to set up ignition? What is uz? Where did the runners rotate in domestic cars? What does the expression "set a spell" mean? - Many interesting questions that the owners of modern cars may not give the right answers.

It has long been rushed into the summer those times when the world's first car has gotten from the conveyor. It was equipped with a new injection system. The production of these machines today increased 10-20 times. As you understand, we are talking about cars with injection systems. We learn how to set the ignition advance angle on the injector.

Today, 80 percent of people become owners of such cars. Therefore, the ability to customize the ignition system is regarded as a very important advantage. It will always stay on the go, saving money for repairmen and fuel services.

Tools and diagnostics

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Tools are an important part of any work. They will be needed to perform the correction of the process of issuing an uz. Mandatory tools include screwdrivers, measuring instrument, keys and preferably laptop with a specially installed program designed to diagnose power units of injection type.

To begin with, it should be known that electronics corresponds to the engine injector motor. It is in submission of the head - the computer system. Testing the quality of all components of the injection system - the first thing to be done.

This is how it is done:

ignition turns on;
the fuel supply is checked (the characteristic sounds of the pump carrying out the injection) must be followed.

If there are no sounds of the fuel pump, you need to check the relay that is responsible for the operation of the pump.

You should also pay attention to the instrument shield on which the indicator may be signaling. If so, then you need to connect to the Laptop BC system with a special program. It will help to analyze errors and bring them as a list.

If at this stage the malfunctions are not detected, it is time to start the engine. On the functioning motor, the throttle assembly is checked first.

This is how it is done:

first, an external inspection of the sensor is carried out, which is responsible for the position of the flap;
then the wiring state is tested;
if everything is in order, it will not be superfluous to measure the voltage of the entire chain and the sensor using the measuring device;
the obtained values \u200b\u200bmust be compared with the standard indicators specified in the TC repair manual.

A normal current value can be considered an indicator ranging from 0.45-0.55V. The current value should not exceed 12 V, and the degree of opening of the throttle is not more than 1%. If deviations are seen, then you need to configure the throttle drive so that it closes the entire flap.

Setting the throttle drive is considered an important step of work included in the diagnosis. It allows you to simultaneously and adjust the node, and check the values \u200b\u200bmatching.

In order to adjust the drive you need:

turn off the RDPV (the sensor responsible for the addition streams of air);
half open choke;
adjust the setting so that the entire flap closes the hole.

Ignition: later and early

What ignition is better? An experienced motorist or an expert will immediately say: optimal. And in itself later or earlier ignition is already extremes that are able to deliver a lot of headaches.

The stability of the operation of the injection motor directly depends on the correct adjustment of the ignition system. This will help to increase the power of the engine, reduce the fuel consumption, improve the return.

Ideally, the 4-stroke engine TVS is obliged to ignite at the end of the compression tact. This means that the fuel should catch up at the very moment when the piston is already reaching the NTC. Conducted this process of the nuance that the TVS need a specific time for burning, after which the force formed will push the piston down.

So, later or early ignition implies a delay or ahead of the response of the process described above. Speaking otherwise, the ignition system is configured in such a way that the spark is formed and the fuel response is not optimal for this. This happens before or later.

It is not easy to determine the optimality of the ignition. Failures in the engine, observed periodically, this is evidence. You can also explore the main signs that define the wrong ignition.

If there is an unstable operation of a power unit in XX mode.
Starting FCs is clearly difficult.
Increased fuel consumption.
The responsiveness of the accelerator pedal is not impressive as before.
The engine is often overheated, detonation is observed.
The power of the power unit falls, it loses the pickup.

In addition, incorrectly exposed VNC leads to the occurrence of cotton in the inlet. The further operation of the car with the CROVERS OF CREER is impractical, leads to more serious malfunctions of the power unit. This is especially dangerous if detonation is noticeable.

The complexity of the ignition determination on injectionboxes is related to the fact that everything resumes in electronics. To solve the problem in this case, it is not necessary for mechanical intervention, but by setting up and programming the ECU.

It is noteworthy that various errors accumulate over the used cars in memory of the ECU. The latter are able to carry out firmware and incorrect operation of the engine and ignition systems. To identify and reset the errors found, as mentioned above, use special software equipment.

Warm

The value of the Woz depends directly from the amplitude of the rotation of the crank shaft. The higher the speed of rotation, the topics at an earlier the time should be set. Otherwise there will be a reduction in power, overheating and premature failure failure.

So, work begins with the preparation of keys and indicator. Some experts recommend to acquire also a special Corrector of Women, which allows you to set this characteristic automatically.

the car should be put on the "neutral", tighten the handbrake;
remove the lid from the interrupter;
specify the crank shaft as a special key until the labels on the lid and the shaft pulley are coincided;
connect the indicator by one end to the ignition module, to the other - to the mass of the power unit;
weaken the mounting of the interrupter;
turn on the ignition;
clamp a slider of a traver against the stroke, and the interrupter turns until the indicator is not found;
rotate a little more rubber, and then return it to the initial exposure and tip at that very moment as the indicator lights up.

BP or vacuum regulator is introduced into the system to maximize the automation of the UAZ adjustment. BP independently changes the angle, depending on one or another load.

For example, if the power unit operates in XX mode, the Wu regulator turns the disc drive in the direction of the late ignition. Conversely, it costs to increase the load, discharge arises, the BP turns the rubber back.

In principle, on a modern injector, the system is automatically adjusted. However, it is not rare the situation when the factory settings are knocked down, and it is necessary to expose yaz. But in any case, and this will confirm any specialist, first need to make sure that such an adjustment is necessary.

The ignition timing is a very important parameter, from which the stability and correctness of the operation of injection and carburetor engines operating on gasoline or gas depends directly. Let's look at what is an ignition advance angle to which it affects how to determine and configure it, including on gas equipment.

What is uz

This is the moment of ignition of the fuel mixture inside the combustion chambers at the moment when the piston is approaching its top dead point.

The ignition advance angle must be exhibited correctly. After all, it directly affects the operation of the motor. The fact is that the efficiency and efficiency of the motor directly depends on this angle. Depending on whether early or later ignition, the pressure of gases inside the system is different.

Gaza pressure on the piston. And the power of their pressure should reach their maximum when the element starts movement down after passing the upper dead point.

If the ignition is early, the fuel-air mixture will ignite when the piston is at the beginning or middle of its path to the VMT. As a result, the efficiency of the engine is significantly reduced. Gas pressure will guide the piston down. The latter at the same time tries to move to the VMT.

If the ignition later, the spark is served at the moment when the piston will move down. In this case, efficiency is also lost, the power of the motor is reduced.

Doctrine about the combustion of the mixture

Ignition and burning it is more than just a chemical process. This is a whole section of the theory. For example, if you deepen a little in this direction of science, it will be known that the flame front begins on a small spark discharge on the candle and extends to the combustion chambers. It is known that the duration of the spark is no more than one meter per second. During this time, temperatures can reach up to ten thousand degrees. The volume of the mixture that flammives is destroyed in one moment.

It has been proven that the burning speed is actually small. However, as the flame increases, the combustion rate also increases at 70-80 times. The remains of the mixture that are not completely removed due to the fact that they are located near the cold walls of the cylinder, they burn slower. At the same time, the angle of rotation of the crankshaft is 30 degrees.

With different positions of the angle of ahead of the ignition, the burning is significantly different. With proper uz, the optimal pressure is supplied to where the piston just passes the VMT. This is about 10-12 degrees.

If the uzn is knocked down, installed in a later side, the most optimal gas pressure is available in the 45 degree zone - the piston here is in an even lower position. Gases are already the descending element. The effectiveness of such an engine is reduced to zero.

With a late corner of the ignition advance, the fuel can get to get after the opening of the exhaust valves. Gases formed after the explosion have a very high temperature. They can easily provoke the ignition of the new portion of the mixture, which enters the cylinders. At this point you can hear the characteristic cotton in the silencer.

Early ignition is not all good. In this case, the maximum pressure is already on the position of the piston in the NMT or earlier. Combustion products are put on the piston, which has not yet reached the top point. As a result, power drops, detonation appears and other unpleasant moments.

Signs of shot down yaz

The process of ignitions of a mixture of fuel and air in the engine chambers (late or occurs) can lead to different engine malfunctions. To determine that the installation of the ignition advance angle is made incorrectly, the following signs will help:

There are difficulties with the start of the engine.
Feelibly increases car appetites.
The motor loses the pickup, the engine power is reduced.
You can observe unstable work at idle.
When you press the gas, the responsiveness of the unit is lost, overheating is observed, as well as detonation.
You can also hear cotton - in a carburetor or intake manifold or in the exhaust system.

The consequences of improper yaz

As a delayed and early ignition, does not best affect the resource of the power unit and its work. It is necessary to add that not only such characteristics as the engine power or fuel consumption is dependent on the right angle. If the spark appears earlier than you need, then the pressure of gases that expand will interfere with the piston. Inflammation After the element began to move down, will lead to the fact that energy will catch up the piston and then fall into the graduation path, and will not make a useful work.

In case of early ignition, the rising element should apply significant efforts to squeeze gases that are formed from the early combustion of the mixture. In this case, the load on the cylindropore group and the crankshaft is significantly increasing.

Earlier ignition is determined by the following characteristic features - you can hear metal ringing sounds during the engine operation. Also will swim by idle speed. After pressing the gas will be observed.

Later, the ignition also harms the engine. The mixture is lit under reduced pressure and an increased volume in the cylinder. The combustion time is disturbed, due to which the mixture does in the process of the piston working stroke. The engine loses power. To accelerate, it is necessary to push the gas pedal hard. Also marked high fuel consumption. Coke, Narc and various deposits are formed inside the motor. Incorrect combustion leads to overheats.

Therefore, you need to know how to set the ignition advance angle. This will improve the operation of the motor, reduce fuel consumption and protect it from premature wear.

How to determine yaz

In order to determine the Women, you should know several important concepts:

The angle has a dependence on the speed of rotation of the crankshaft. The higher the engine turnover, the earlier should be the uz. It also affects the temperature of the engine and a combustible mixture. The lower the temperature of the motor, the more slow burning. Therefore, in this case, the ignition advance angle adjustment is made in an earlier side. On the hot motor, the opposite is the opposite.
Also, the load on the engine is also significantly affected. The more turnover, the earlier angle is needed. This is done to exclude detonation, since at high loads in the cylinders, increased portions of the fuel mixture are fed.

Why yaz is knocked out

Such situations are quite common. The parameters recommended by the manufacturer are knocked off. After all, they are simply not intended for specific conditions in which the car is operated. Here it is necessary to know what should be the ignition advance angle for specific conditions - it is set manually.

But at first you need to make sure whether it is necessary to interfere with something and change something. You can check the unz on a rumor, focusing on your feelings. To do this, the car is accelerated on a straight section of up to 40 km / h and then put pressure on gas. The fourth transmission must be included.

If detonation sounds are briefly heard, but the acceleration will be quite confident, with an angle you can not do anything even account. Detonation should completely disappear in a couple of seconds, after a speedometer in 60 km / h.

When the sounds do not stop, and the car is not accelerated, then this suggests that the ignition is shot. If detonation does not disappear, then the uz is too early. In the second case, the ignition later.

Setting up yaz

Let's find out how to set the ignition advance angle. To do this, you will need a special device - a stroboscope for ignition. But if this device is not, then nothing is terrible. If the ignition is contact, then it is configured using an ordinary light bulb. If the system is non-contact, then the setting is carried out on the rumor, and the correctness of the adjustment is checked above by the method described on the road.

Contactless ignition

If there is a strobe, then it is connected according to the instructions for the device. Usually most devices have three wires feeding, which are connected to the battery, and signal. The latter is connected to the candle on the first cylinder.

Exhibit the ignition advance angle at idle, but on a well-haired motor. This is done as follows. The stroboscope is connected, and its lamp is sent to the flywheel - there are marks on it. It is better to find these marks in advance, twisting the engine per wheel when the fifth gear is on. The label is marked with the stationery corrector. The stroboscope will flash, and the label will seem fixed if you shine on it. The rotation of the traver is achieved that the label is in one place on the contrary to the lines of the flywheel. The ignition advance of the ignition of the vase on the passport - plus-minus one degree.

Often, after such a setup, the engine works stably and well. Fuel consumption drops, the speaker improves. But it happens not always. In this case, it is necessary to adjust the ignition by detonation.

Women and Injector

Everything is much easier here. In this case, they include ignition and observe the dashboard. If a lamp is burning, talking about faults, then take a laptop and conduct diagnostics. Next inspect the throttle. Then check the voltage in the on-board network. The damper is open for one percent. Next is sharply pressed on the gas pedal. As a result, the flap will open by 90 percent. The voltage on the sensor of the throttle position should fall to 0.45 V. If this is not the case, regulate uz.

With an injection engine will be enough installation of a factory initial angle. Here the electronics decides which the ignition advance angle will be in the process of operation of the motor in different modes. The initial angle is exhibited similarly to contactless ignition. Adjustment is carried out by rotating nuts, fastening the distributor of the flywheel.

Variators Woz.

With the advent of HBO, the car owners faced the fact that even the earliest ignition that can be placed on the rubber, not enough for gas fuel. The fact is that, unlike gasoline, propane-butane is burning longer, and therefore problems appear. Since the rubber does not allow to obtain a very early ignition, so that the mixture can burn in the combustion chamber, the ignition advance corners appeared.

This is an electronic device whose task is to shift the CRM curve. This displacement is carried out according to certain algorithms for specific values. If you do not use the variator, the ignition will not be earned enough. The combustible mixture will be treated in the graduate manifold, and this is fraught with various troubles.

Finally

So you can configure and check the ignition advance angles. When the failures appear when moving when the engine troit or simply there is an unstable job, many begin to check anything, not only uzov. But in vain. This parameter directly affects the stability of the internal combustion engine. The car with a properly exhibited ignition angle will delight with its reliable and uninterrupted work.

The ignition timing is ignition to the inflammation of the working mixture directly in the internal combustion engine cylinder until a certain point when the piston reaches the upper dead point. In general, the magnitude of the ignition is a very important element of the entire system, as it has a huge impact on the engine itself. When the internal combustion engine is running, which has four clocks, during the compression tact, and before reaching the piston of the upper dead point, the moment of ignition of the working fuel mixture in the combustion chamber occurs. This happens by means of spark plug. In this tact there are several processes: expansion of work gases and fire of the working mixture. After that, the following tact is performed - the work move. In fact, the combustion of the air-fuel workplace does not happen instantly.

From the first moment when I spark is arising, and until the moment when the entire air-fuel mixture is ignited, and the pressure of gases reaches its apogee, a certain time occurs. It is this period that is small enough, however, due to the fact that the crankshaft has a very high rotational speed, even for this period of time, the piston can undergo a certain way from that position in which the ignition of the working mixture originates.

1. Internal combustion engine and ignition advance.

Before proceeding with the direct inspection of the ignition angles, it is necessary to clarify and disassemble the principle of operation of the entire system. No one will be a secret that the moment of ignition is very important in the immediate operation of internal combustion engines. This process occurs before the piston itself is as close as possible to the top point at the time of the compression tact. This mini-explosion occurs due to the expansion of gases, as a result of which the piston itself continues to move, because of which, actually the work move is ensured.

A certain time for conducting procedures is still allocated, although these processes and pass very quickly. So, it is important to know that the crankshaft also rotates at a very high speed, as a result of which the piston quietly time to go through a certain way from the beginning of the ignition of the air-fuel mixture until the gases expansion. Thus, if the ignition will occur during the period when the piston is in the upper dead point, the burning will occur even at the beginning of the working stroke, and end only a little later. Consequently, all this contributes to a decrease in gas pressure.

In those moments of time, when the ignition of the air-fuel mixture occurs very early, the pressure of gases can reach its apogee before the moment when the piston itself reaches the extreme upper position. This means that in such cases there is a certain obstacle to its movement. This, in turn, can adversely affect the work and the holistic state of the internal combustion engine. That is why adjustment of the moment of ignition is a very important and necessary process.

Before proceeding directly to the adjustment of the ignition ahead, it should be sorted out that this device is and what is the effect on the general state of the vehicle. This situation is considered to be optimal when the moment of igniting the combustible mixture and its combustion occurs before the piston reaches the position of the upper point. This moment is customary to determine the position of the crankshaft of the car, and all the designations will be carried out in degrees. In other words, in this case we are talking about the corner, which is located between the upper dead point and the crankshaft. If a certain shift occurs in the direction of the top of the dead point, then such an angle is called late, and if the shift is directed in the opposite direction, then such an angle is called early.

2. Changing the ISN on the gasoline engine.

Take the type of repair work with the preparation of a special tool. For this procedure, a check light and wrench will be needed.Also, do not do in this case and without a special key, which is intended for scrolling the crankshaft. If you are in the essence of the work of the entire system, you can determine that it is precisely the position of the crankshaft that predetermines the value of the ignition advance angle. You can also purchase a special corrector that is designed to change the ignition advance angle. This device can independently predetermine and set this characteristic automatically.

The car must be put on a neutral speed and tighten the parking (manual) brake. After that, you need to remove the lid from the interrupter. Through this, you can easily get to the crankshaft and turn it using a special key. It is necessary to turn it until the moment when the distributor runner does not be located in the sector of the first cylinder of the traver. It is also necessary to follow the position of various labels that are located on the pulley and the oppression of the front cover - they must completely coincide.

In order to correctly install the ignition advance angle, you must connect the control paw. One of its immediate conclusions must be attached to the ignition coil. The second output should be attached to the mass of the engine. After that, by loosening the attachment of the traver, you need to turn the key in the ignition. The slider should be clamped against the stroke, and the rubber is turned in the opposite direction from the movement of its roller. All this needs to be done until the warning lamp does not finally go out. For reliability, the rubber should be rotated a little more and with extreme caution to return it in the opposite direction. In addition, it is necessary to fix the moment of ignition of the lighting device. It is necessary to set everything in the same position, and secure the dispenser's interrupter body with the necessary bolts. Everything left there is nothing at all, namely, return the lid on its rightful place.

To set the ignition advance angle to the maximum automated you need to implement a vacuum regulator. It is such a device that is capable of automatically change the ignition advance angle depending on a certain load. If the internal combustion engine runs on the stroke, the vacuum controller turns the superheater disc. This process occurs in the direction of the late ignition. At that moment, when the load begins to increase, there is a vacuum. It is then that the vacuum regulator begins to rotate the disc drive in the opposite direction. This is how this device is turned off, since it is not able to create an outpacing angle. At this point, a centrifugal regulator is included, which, in fact, now independently begins to set the advance angle.

With the help of a sensitive diaphragm, the fact of permanent is fixed. This diaphragm is part of the vacuum regulator. On the one hand, it has pressure from the carburetor, and on the other - our atmosphere. In general, it turns out that the throttle is when it is in a closed position, it does not allow firing air from the system, and it does not fall on the vacuum regulator itself and the diaphragm. As soon as the rarefied atmosphere reaches its purpose, the diaphragm begins to bend, and the device itself ceases its purposeful work, returning everything to its previous places.

3. Does the Uzen adjustment need - check on the go.

In the automotive nature there are situations when stock factory parameters are knocked up or in the root are not serving for specific operating conditions. In all the above cases, the ignition advance control requires self-adjustment. Nevertheless, before the entire process, make sure that this procedure is necessary. So, you need to figure out how to check the value of the ignition advance angle. To do this, it is necessary to accelerate on a flat road to a speed of 40 km / h, after that you need to dramatically press the gas pedal and listen to your transport facility. If such a detonation noise occurs, which stops after the speedometer indicator shows the speed of 60 km / h, then the ignition advance angle is in perfect position.

If the sound of detonation did not stop, then the ignition is "early". It happens that the moment of inflammation of the air-fuel mixture is delayed for a certain period, as a result of which detonation ends earlier than the car reached a mark of 60 km / h. In order to change the ignition advance angle, you need to open the hood, weaken the fastening of the distributor of the distributor and change the position of the traver. In the first case, you need to adjust so as to move a few millimeters clockwise, in the second counterclockwise.

4. Installation of the correct uz on the injector and diesel.

With modern cars - injectors, the case consists much easier. In this case, it is necessary to turn on the ignition and throw your gaze to the dashboard. If the light on it caught fire, which indicates a malfunction, you need to take a laptop, in which there is already a special program, connect it to the on-board computer and diagnose.

After that, the throttle device must be subject to a detailed visual inspection. In addition, check the sensor voltage, which adjusts the position of the throttle, and the on-board network voltage. They must be normalized: Voltage for the network - 12V, and for the sensor - 0.45-0.55V.The damper must be opened only by 1%, after which it is sharply pressing the gas pedal. In this case, the opening of the flap will exceed 90%, and the voltage in the sensor decrease to 0.45V. If this does not happen, you need to urgently adjust the angle of the ignition advance.

Start the installation of an angle should be disconnected from the vacuum hose from the internal combustion engine. After that, a positive clamp of the strobe should be attached to the plus terminal of the battery. In this case, you need to adjust the ignition by switching the clip "Mass", attach it to the terminal minus and pull out the wire from the cylindrical jack, which is located on the distributor lid. In the freed place you need to insert the goboscope sensor, while connecting it to the first cylinder of the power unit by means of the wire. After that, you need to start the motor and direct from the stroboscope a ray on a special hatch. The label will arise on the flywheel. Optimal in this case will be considered its location between divisions. If there is no such, then you need to put an angle, gradually relaxing the fastening nut of the flywheel distributor.

On the diesel engine, the adjustment of the angle of ahead of the ignition is also not particular problems. Do not underestimate the importance of this procedure, since the successful operation of the diesel engine can occur only with total combustion of the fuel mixture. If the ignition angle is not set correctly, this will not be released. The main difference of this system is the absence of spark plugs. In general, the whole process is the most as in a gasoline engine. In this case, there is only the need to remove the decompression mechanism, a motorcycle and the neck of the neck, through which the oil is poured. Then you need to check the level of fuel supply. It is for this that it is necessary to translate the corresponding lever to the final position and set the moment, after which it slowly scroll through the crankshaft.

5. How to set uzn in a car with HBO or trust this task variator.

Recently, gas installations have received wide distribution. All this is due to their economy, as the fuel of this kind is much less than diesel or gasoline. It should be known that gas consumption is an order of magnitude higher, and the cutting of the fuel and air mixture occurs at the issue stage and lasts a little longer. Adjusting these parameters can be done by setting the value of the ignition advance angle.

The ignition advance angle is quite simple, with all this, the fuel itself will be burned until the exhaust valve is opening. Consequently, damage to the parts of the car is not expected, as well as a negative thermal influence. At the same time, the efficiency of the engine is significantly increased. Characteristic for gas installations and for gasoline is different. It is believed that in the cars of modern models, the adjustment is made automatically by means of an on-board computer. This is not entirely so, because in the injectors, the advance angle is set in directly according to detonation, and for gas installations, this phenomenon is generally unusual.

Car owners with gas installations have helper - variator. It is this detail that is capable of changing the advance angle without any concomitant intervention. But additional equipment - variable speed drive - You need to purchase, actually, like gas equipment. In the modern world, there are many different ignition timing variators for gas installations. This device is directly connected to the sensor, which is responsible for the position of the crankshaft and, at the same time, corrects all its readings on a certain quantity. Depending on the variator model itself, a displacement is shifted to a fixed value, or it all depends on the engine speed. The activation of the device occurs by turning on the gas installation.

To begin with, you should choose the most convenient space for the location of the variator with gas equipment. The best place to attach the variator is the far left corner of the boost space, which is located next to the gearbox. After that, you should remove the cover from the device and make direct connection based on the instructions.

One output will be responsible for the supply of voltage to the sensor, which is the final chain of the exchanging of the variator. The second output must be connected to the leg of the gas valve in the gas installation. Mass need to be connected to the cable-shaft position sensor cable screen. After that, you need to clean the sensor wires. Each of them should attach certain conclusions of the variator. After that, nothing remains. You need to configure the device, after which - to enjoy and completely taste the charms of your vehicle. Modern experts are inclined to the opinion that the presence of a variator in gas-ballot equipment significantly saves fuel to 25%. Of course, it can be skeptical to this, as the figure is most likely overestimated. But still, a certain benefit from it is.

The ignition of the fuel and air mixture on and the engine is the ignition of the working mixture in the cylinder in a strictly specified moment. Under this moment, it is necessary to understand the finding in the NTC.

The correctly exposed moment of ignition strongly affects the working operation of the motor. Deviations lead to power loss and unstable work. In the four-stroke engine, the mixture flashes at the end of the compression cycle, as well as before the time when the piston is in the upper dead point.

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What is the ignition advance angle

In gasoline units, the mixture is set on fire from the spark that the ignition candle creates. Before the start of the workflow of the piston there is an expansion of gases and ignition. It is worth noting that the mixture in the cylinder burns not instantly. After the formation of sparks, the combustion process and the maximum extension of gases in the working chamber takes a certain period of time. The specified time period is small, but taking into account the high speed of rotation, the piston has time to additionally go through a certain distance from the point of its stay at the moment when the air mixture only caught fire.

Before the start of the CSP (ignition advance angle), let us consider in more detail the scheme of the ignition system. As mentioned above, the moment of ignition has a huge impact on the service life of the engine. The approach of the mixture is realized at the moment when the piston on the compression tact approaches the VMT. Next, the combustion of air and gasoline mixture occurs, the result of which becomes the expansion of gases. These gases pushed the piston down (working stroke), so that the combustion energy is converted into mechanical useful work on the crankshaft.

It is quite obvious that if the ignition occurs at the time of finding the piston in the NWT, then the fuel will still be tramored at the beginning of its working stroke (later ignition). This will lead to the fact that the pressure of the gases will partially be on moving down the piston. The loss of engine power is naturally observed.

If you file a spark and set fire to the working mixture noticeably before reaching the NMT piston (early ignition), then the maximum of the expanded gas pressure does not push it down, but will prevent its raise in the NTC. It turns out that gas energy in such a situation does not fulfill useful work. Moreover, the resistance of gases in relation to the moving piston has extensive loads on the piston itself and. Such an incorrect Ignition Ignition literally destroys the engine. To avoid similar deviations ignition must be adjusted.

Self adjustment of uz

The correctly exposed ignition advance angle implies the ignition of the fuel and air mixture and its combustion until the moment when the piston is in the upper dead point. This moment is determined by the position of the crankshaft of the engine and is indicated in degrees. It turns out, the magnitude of the ignition is the angle between the NTT and the crankshaft. If you move the angle to the VTT, then the ignition is obtained later, and if you move the angle in the opposite direction, then such an angle will become early.

Let's look at the example of the "classics" of the VAZ, how to set an engine on the engine. The setting must be carried out using the following minimum toolkit:

wrench;
the key of the flywheel for turning the crankshaft;
spark plug;

Procedure Next:

The engine must be drowning, and the car itself can not be transferred to the transmission (the parking brake is used) the key should also be removed from the ignition lock.
Next, it will be necessary to detect labels that are near the gear (long 0 degrees, the average length of 5 degrees, short 10 degrees). After that, you also need to identify the label on the flywheel.
Then you need to disconnect the high-voltage wire from the ignition candle of the 1st cylinder (near-k). Earlier candle is inserted into this wire, after which it is attached to the ground (you can use the fuel hose holder on the valve lid).
After that, it is necessary to remove the lid of the traver, come from the left side of the car and put the key of the crankshaft on the nut. Next, the crankshaft must be twisted strictly on itself, since the attempt of rotation in the opposite side will lead to unscrewing flywheel.
In the process of rotation of the crankshaft, you need to monitor the slider of the traver and customize the position so that the slider be in the area of \u200b\u200bcontact of the 1st cylinder.
As for the labels on the GRM and valve lid gear, for VAZ 2103-2106, 0 or 1 degree is displayed, 1-3 degrees are placed for the VAZ 2101 motor.
After setting the timing marks and checking the location of the traver's runner in the contact area of \u200b\u200b1 cylinder, the key from the crankshaft flywheel is cleaned, the lid of the traver returns to the place.
Next, the ignition can be turned on, but the engine does not start. Then the fastening nut can be released, after which the rubber turns against a clockwise arrow.
The next step is to turn the timbral clockwise until the spark appears. This procedure is better to repeat several times.
After that, the rubber must be fixed in the position when the spark slipches. Then the wire can be returned to the twin-cylinder overlap.

The final stage becomes verification of the correctness of the ignition advance angle. You can check this value when driving. Before starting the test check-in, the engine must be warm up to the operating temperature.

Next, the car will need to disperse on a flat road up to 40-50 km / h, after which the 4th speed turns on and a sharp pressing of the gas pedal is carried out. The appearance of the "fingers" (detonation) and its rapid disappearance (about 2 seconds) when overclocking up to 60-65 km / hour will indicate that the ignition advance angle is set correctly.

A constant detonation knock will mean that the ignition is early. In this case, the setup procedure must be repeated, turning the rubber in the "minus" to one division. The absence of detonation allows you to carry out the "plus". In other words, the rubber shifts several millimeters clockwise or counterclockwise, which will depend on what ignition should be set in a particular situation.

It is worth adding that the adjustment of the ignition advance angle on the carburetor motors can also be automated using a vacuum controller. The specified solution is used to correct the angle of the ignition advance taking into account the loads on the engine in one mode or another.

Ignition advance angle on electronic injection motors

The operation of a modern gasoline and diesel engine with electronic injection is controlled by firmware that are sewn in. The entire system is based on the interaction of the controller, electronic sensors and actuators. For this reason, the ignition on such cars does not exhibit.

For the normal operation of the fuel feed and ignition systems, the ECU receives a signal from the sensors, after which the information obtained is processed and compared with the special, which are in the firmware of the control unit. The main signals come from the crankshaft and camshaft sensors. Taking into account the position of the crankshaft and camshaft, the ECU calculates the moment of fuel injection injector injector, as well as the magnitude of the fuel-air mixture (only for gasoline engine) in the cylinder with a correction for turnover and the load on the engine.

Electronic ignition control means to change the ignition angle (fuel injection advance angle for diesel engines) and fuel cards on such systems can only with the help of a computer to which the ECU is connected. This is done if you need a software chip-tuning internal circuit, as well as after making various changes to the engine device.

On standard cars, malfunctions in the electronic ignition can occur due to electronics faults that are diagnosed in real time by analyzing signals from sensors. After detecting a faulty sensor or wiring problems, the cause or replacement of the electronic device on knowingly serviceable is performed.

Additionally, you should pay attention to the fact that all labels on the flywheel and pulleys of the timing accurately coincided. In the dieselle, it is also necessary to separately check the actuator status. Incorrect marks will result in erroneous signals to the computer, as a result of which the ignition failures will appear and the synchronization of devices and mechanisms will violate.

Ignition advance angle on engines with HBO

Symptoms to determine the correctness of the ignition advance angle. The consequences of incorrectly configured Woz, ways to place the ignition.

Why the engine is shooting into the carburetor, in the exhaust system. Causes of cotton appearance in a carburetor, additional symptoms, troubleshooting.