Replacing spark plugs Lada 21102 (VAZ 21102) with your own hands

Spark plugs for VAZ 2110, 2111, 2112 – which ones to put on the injector and carburetor

The spark plugs on the VAZ 2110/2111/2112 have a nickel central electrode, single-pin. For the VAZ 2110 the base engine is an 8-valve carburetor, for the 2111 it is also an 8-valve engine, but with an injector, and for the VAZ 2112 it is a 16-valve, injection engine. But in fact, each car was equipped with all these engines and their modifications. Therefore, spark plugs differ in the context of the 3 main base engines.

On each engine, the spark plugs have different markings, but for an 8-valve engine with an injector and carburetor they are the same and differ only in the size of the gap. Therefore, they can be interchanged by first setting the required gap. For VAZ carburetor engines, it is recommended to set it somewhere within 0.7 mm, but on injectors - 1 mm.

16-valve power units already have spark plugs that are slightly different from the previous ones. Therefore, it is not recommended to install them on 8-valve engines.

The dimensions and article numbers of the original candles are presented in the table below.

*according to Champion nomenclature

In fact, under the article numbers 21080-3707010-86 and 21110-3707010-86, which go to 8-valve valves, there is the same model of spark plug, only with a different gap. Directly from the manufacturer, it has the article number A17DVRM, the average price is 140 rubles/piece. And under the article number 2112-3707010-01 (for 16 valves) there is a spark plug AU17DVRM, the average price is 200 rubles/piece.

A17DVRM

AU17DVRM

The most commonly used substitutes are listed below. Ten and eleven have the same analogues, only before installation it is recommended to check the gap and, if necessary, set it to the recommended values.

It is worth saying that NGK spark plugs are a favorite among owners of these cars. They have the highest popularity and the most positive reviews.

According to the rating of spark plugs for VAZ 2110/2111/2112 on PartReview dated 04/06/20, owners prefer NGK products. Manufacturers BRISK, Denso and Bosch also stand out.

From the factory, the VAZs in question are equipped with ordinary nickel spark plugs, which do not have the longest service life and have a low ignition rate of the fuel-air mixture. Therefore, drivers often resort to installing more expensive spark plugs with iridium thin electrodes. The cars in question are most often equipped with such spare parts from Denso. For VAZs with 8-valve engines, this is the IW20 model at a price of 590 rubles/piece. And for a car with a 16-valve engine - IK20 with a price of 520 rubles/piece.

Studies show that such candles have a “hotter” white spark. And due to the fact that the iridium electrode is several times thinner, the spark does not dissipate. In practice, there is a slight improvement in the dynamic characteristics of the motor, as well as a 3-4 times increased service life.

When to change spark plugs on a VAZ 2110/2111/2112?

According to the maintenance regulations for VAZ 2110, 2111 and 2112, spark plugs must be changed every 30 thousand km. According to the experience of the owners, their actual service life is slightly lower, and rarely reaches 25 thousand km. This is especially true if the car is operated in difficult conditions, or in severe frosts, since when starting a very cool engine, they can be filled with gasoline.

Ask in the comments. We will definitely answer!

How to replace spark plugs on a VAZ 2110-VAZ 2112?

Note! Before any replacement of spark plugs on any engine and on any car, be sure to first remove the negative terminal from the battery so that nothing short-circuits during operation (For information on how to remove the terminal, read paragraph one in this article) and by the way, details and all the nuances on replacing spark plugs on sixteen-valve cars, read the article entitled: “Replacing spark plugs on Priors”, the engine on them is very similar to a 10-valve 16-valve engine and therefore the spark plugs are replaced absolutely identically!

Removal: 1) Let's start replacing spark plugs on 8 valve engines, firstly, you will need to get new spark plugs, if you have a carburetor engine, then you will need to purchase spark plugs marked: “A17DVRM, FE65CPR”; for injection 1.5 liter engines, spark plugs of the same type : “A17DVRM, AS. R42ХLS" will be needed, as soon as you have stocked up on them, remove the old ones, to do this, disconnect the four high-voltage wires from them (Two of them are indicated by arrows in the photo below for clarity, two more are nearby, you will immediately find them) and wipe with a rag or a wire brush ( Well, just be careful with the brush, don’t damage the spark plug if you still need it) the spark plug itself (Its upper part) and the area around it, so when the spark plug is unscrewed, dirt won’t get inside the Cylinder Head, which, if it gets in, can harm the car’s engine .

2) Then, using a special spark plug wrench or a wrench with a high socket head, unscrew the spark plug by the thread that is present on it (The thread is indicated by the red arrow), you need to unscrew the spark plug counterclockwise in the same way as all the bolts and screws, respectively, it is screwed clockwise .

3) Now that the spark plugs have been removed and are in your hands, be sure to check and inspect them; we have already described how to determine the engine’s operation based on the condition of the spark plugs (whether it works well or poorly) we have already described a little higher, namely, a link to this article was given, but if you are not going to read it, then let’s briefly say that when examining the spark plugs, no cracks should be found on the insulator (Insulators are those places that are screwed into the inside of the Block Head), the threads should be intact, the electrodes themselves should also not be damaged, and so The best color that spark plugs should have is brown or grayish-yellowish, it indicates that the engine is in full working order. For clarity, such a spark plug is shown in the photo below; for more detailed information on the color of the spark plug, look for the same article that is linked above.

Installation: 1) Before installing new spark plugs or old ones, it doesn’t matter, we recommend checking their gaps, this is done using a round feeler gauge, that is, as shown in the small photo below, the feeler gauge itself is inserted into the gap that goes between the electrode and the spark plug itself (This gap indicated by a red arrow) and after which it is calculated, we immediately note the fact that the gap in carburetor cars should be in the region of “0.7-0.85 mm” (Therefore, take a feeler gauge of this thickness to check this gap, that is, if the feeler gauge is “0.80” thick mm" will not fit into the gap, then it means it is smaller than required, but if the dipstick fits easily and there is still space left, then it will need to be adjusted), and the injection ones have 8 valves in the region of "1.00-1.13 mm". Note! If your gap is set incorrectly, then in this case, stock up on a special key and use it to bend the electrode until the gap is set correctly, as shown in the photo below:

Note! If your gap is set incorrectly, then in this case, stock up on a special key and use it to bend the electrode until the gap is set correctly, as shown in the photo below:

2) In conclusion, we recommend that you always lubricate the threads on any nut, on any bolt with graphite lubricant, thereby the threads will never rust or sour and everything will turn out with a bang, do the same with the candles, namely their threads with this lubricant lubricate.

Additional video: For detailed information about spark plug gaps and how to adjust these gaps, see the video below:

Note! Recently, very often they have begun to counterfeit parts and, as a rule, the most popular ones are counterfeited, and the most popular ones are, firstly, spark plugs, secondly, various types of filters, etc., just below we have attached a short video that explains how to what an original spark plug looks like and how it can be distinguished from a fake and always remember one thing, all original spare parts (Even the smallest ones) are sold in boxes!

Which spark plugs for VAZ are better to choose?

There are a large number of different modifications of the part, which complicates life for motorists. The problem is that each motor is designed for a specific type of spark plug. If you supply the wrong part, a number of negative consequences can arise.

1. Misfire of the mixture due to the gap between the electrodes of the element being too wide.
2. Interruptions in the operation of the internal combustion engine caused by too low spark power.
3. Instant failure of the device due to too much electrode protrusion.

Also, depending on the inconsistencies present, other malfunctions may “pop up” that reduce the comfort of using the car.

What to look for when choosing.

Specialists from the AvtoVAZ plant recommend selecting spark plugs according to a number of parameters.

1. Heat number. The parameter characterizes the rate of heat removal from the working part of the candle. At the same time, the electrode transfers excess heat to the spark plug skirt in a timely manner, which ensures stable operation of the part. If energy is removed too quickly, scale forms on the working part of the part, which prevents normal spark breakdown. If the withdrawal is too slow, the thin electrode overheats. The process provokes the formation of glow ignition. This prevents the engine from operating normally due to detonation of the mixture or its early ignition. Under normal thermal conditions, a spark adequately breaks through the spark plugs and does not form excessive carbon deposits.
2. Spark gap. Some users know that for the engine to operate correctly, the spark gap on the spark plugs must be maintained. The working gap on VAZ spark plugs is strictly set by the manufacturer of the power plant and is necessary due to the fact that the formed electric arc has a certain strength. As the distance increases, the spark loses stability, which can lead to misfires. In the opposite case, easier starting of the engine is ensured, but when the gas is released, the electric arc current may not be enough. This is justified by the fact that each ignition coil has a certain transformation ratio, usually equal to 2000 units. This means that during the start-up of the internal combustion engine, the elements produce up to 14 kW, and during normal operation it is already 24. Consequently, failure to comply with this parameter can lead to serious disruptions in the operation of the motor.
3. Departure of the working part of the electrodes. The parameter is critical for adequate operation of the power plant. The spark plugs on the VAZ 8-valve injector, as well as for carburetor models, have electrodes strongly pushed forward. This is due to the fact that the structural parts are located in the corner of the combustion chamber, where there is no adequate ventilation. The overhang of the working part allows for better ignition of the mixture and stabilizes engine operation. If the spark plugs are mounted in a multi-valve engine, where the inserts are located in the center of the valve head, it is recommended to install spark plugs with a deep-set core - this will prevent damage to the electrodes by the piston bottom and an abundance of carbon deposits on the structural elements.
4. Number of electrodes. Initially, manufacturers position this parameter as a definite plus. When one electrode “burns out,” the spark plug switches to another, which significantly increases its service life. However, not everything is as simple as it seems at first glance. If the mixture is sprayed unevenly in the cylinder (poor ventilation of the combustion chamber), and at this moment the spark jumps to the shadowed part (the place where the exhaust remains), misfire may occur, which will lead to unstable operation of the power plant. Additionally, this fact increases the wear of the catalyst and engine oil, which is critical for VAZ cars.
5. Manufacturer. The manufacturer of the product is also an important parameter. Users recommend buying from trusted brands that have been on the market for a long time. The cost of such candles will be significant, but with proper selection and operation they will work for a long time and without significant complaints.

By adhering to the specified parameters, a car enthusiast can buy a fairly high-quality product, while saving on the frequency of car servicing and repairs.

Spark plug gap on VAZ-2112 16 valves: photos and standards

Almost every motorist has come across the concept of adjusting spark plug gaps. Repeatedly this problem has become the cause of many troubles. Basically, malfunctions are associated with improper combustion of fuel in the cylinders, and the car may stall and consume too much fuel.

The video material will tell you what the gap should be on the spark plugs of a VAZ-2112 16 valves, and will also tell you about replacing spark plugs

What a gap there must be!

Diagram of valve clearance measurement

The spark plug gap is the distance between the electrodes that are connected to produce a spark. Since the 16-valve VAZ-2112 is only an injection system, we will talk about the gap specifically for this injection system.

Gap size between spark plug electrodes

So, the normal gap on spark plugs is the distance between the electrodes, which is 1.00 - 1.13 mm . Exactly, going beyond these limits can cause a large number of problems, such as:

1. Change in consumption (comparison with factory data).
2. Floating speed.
3. The car starts to shake.
4. Oil in spark plug wells.
5. And others.

How to measure and correct spark plug gap

The gap between the spark plugs can be checked using a special feeler gauge, which has a corresponding plate thickness marking. It should fit a little tight, but not too much. If the probe does not fit through or the gap is too far from ideal, then it is necessary to press the metal part (upper) of the electrode against the graphite one. After this, take measurements again and so on until it is perfect.

Flat probe for measuring and changing the gap between spark plug electrodes

Of course, stores usually sell spark plugs with the gap adjusted from the factory. But, long transportation can lead to the distance between the electrodes being broken, so before installation, it is necessary to adjust the spark plug gap on all spark plugs when replacing them.

A clear example of measuring the spark plug gap using a feeler gauge

Consequences of incorrect clearance

As experience and practice show, untimely valve adjustment can lead to the following consequences:

• A small gap will mean that the engine will not be able to develop sufficient power , and will also stall or have difficulty starting.
• A large gap leads to greater fuel consumption . Of course, more fuel means better dynamics and traction. But, in the modern world, when everyone is struggling to save money, a consumption of 12-15 liters per 100 km will not please the owner. The second nuance is gas failures or too large jerks, which are sometimes unnecessary, especially for operation in the urban cycle.

conclusions

The correct gap on the spark plugs ensures correct operation of the engine as a whole and its individual elements, such as: gas distribution mechanism, fuel combustion process, consumption and others. Adjusting the clearance on a 16-valve VAZ-2112 engine is quite easy and simple with your own hands.

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All about spark plugs

Let us pay attention to what consequences can occur if the spark plugs are not replaced on time. Spark plugs are presented in the form of a special device, through which the fuel mixture is ignited in the combustion chamber of any type of engine. The mixture ignites when exposed to an electric charge that penetrates between the electrodes of the spark plugs

What are they made of?

Candles consist of:

• contact terminal required for connecting ignition system drives to the spark plug;
• an insulator that prevents the candles from overheating;
• insulator ribs, they prevent electrical breakdowns;
• central and side electrodes, they are necessary for a spark to appear between them, igniting the fuel mixture in the cylinder;
• a seal that prevents hot gases from penetrating from the combustion chamber.

An important element of spark plugs is the gap

If the gap is too large, a large spark will be generated and a large area of ​​ignition of the combustible mixture will be provided. Based on this, it should be noted that the fuel burns efficiently, while its consumption is stable and the engine operates smoothly.

With a smaller gap between the electrodes, a spark is generated earlier, and breakdown can occur at low voltage. In such a case, a small spark energy poorly ignites the combustible mixture, which affects the reduction in power and economic properties of the engine.

Based on the heat rating indicators, products can be “cold”, “hot”, medium and unified. If you install too “cold” spark plugs with a relatively high heat rating, the self-cleaning process will be worse, and the engine will begin to function intermittently. If the spark plugs are too hot, glow ignition may occur, which can cause devastating consequences, for example, engine detonation.

Types of candles

Candles can be:

• classic with copper electrodes;
• platinum with platinum electrodes;
• iridium with electrodes made of iridium alloy;
• laser.

There are options in which the electrodes of classic spark plugs are coated with yttrium alloy for reliability. This is done to increase the stability of the electrodes. As for platinum spark plugs, their distinguishing feature is increased resistance to temperature fluctuations and corrosion, which comparatively prolongs their service life. Iridium spark plugs are similar in characteristics to platinum spark plugs, they are considered one of the highest quality and most durable spark plugs. All spark plugs can have a different service life:

• classic – mileage up to 50 thousand km;
• Iridium and platinum - mileage up to 90 thousand km.

Today, many car manufacturers note that it is advisable to change classic spark plugs at every second technical inspection. For example, first after thirty thousand kilometers, and then after sixty. With the use of platinum and iridium products, this period approximately doubles.

What should be the gap on the spark plugs of a 16 valve VAZ-2112

1. The car starts to shake.
2. Floating speed.
3. And others.
4. A large gap leads to greater fuel consumption. Of course, more fuel means better dynamics and traction. But, in the modern world, when everyone is struggling to save money, a consumption of 12-15 liters per 100 km will not please the owner. The second nuance is gas failures or too large jerks, which are sometimes unnecessary, especially for operation in the urban cycle.
5. Change flow ().
6. » » » Almost every motorist has come across the concept of adjusting spark plug gaps. Repeatedly this problem has become the cause of many troubles. Basically, malfunctions are associated with improper combustion of fuel in the cylinders, and consuming too much fuel. The video material will tell you what the gap should be on the spark plugs of a VAZ-2112 16 valves, and will also tell you about replacing spark plugs Contents > Drawing diagram for measuring valve clearance The gap on the spark plugs is the distance between the electrodes that are connected by the occurrence of a spark. Since the 16-valve VAZ-2112 is only an injection system, we will talk about the gap specifically for this injection system. The size of the gap between the electrodes of the spark plugs So, the normal gap on the spark plugs is the distance between the electrodes, which is 1.00 - 1.13 mm. Exactly, going beyond these limits can cause a large number of problems, such as:
7. Oil in spark plug wells.
8. A small gap will mean that the engine will not be able to develop sufficient power, and will also stall or have difficulty starting.

Replacing spark plugs Lada 21124 (VAZ 21124)

Since the design of engines and, in particular, access to spark plugs on a 16-valve engine is a little not as simple as on an 8-valve engine, I decided to consider this procedure in more detail in a separate article. The design itself is designed in such a way that each spark plug has its own ignition coil, for example on a VAZ 21124 it looks like this. As you can see in the photo above, each of them is fixed with a bolt, which must first be unscrewed.

Read more about this in the instructions for replacing ignition coils on 16-valve VAZ 2110 and 2112. When you have dealt with this, you can use a wrench or a special spark plug socket with an extension to unscrew the spark plugs from the cylinder head.

Since the spark plug is located in a rather deep well, for more convenient removal it is necessary to use special keys with rubber inserts inside that grip and prevent it from falling during dismantling. We perform the same procedure with all other cylinders and replace the spark plugs with new ones.

Do not forget to change spark plugs every 30,000 km or even more often if their condition and the appearance of the electrodes require it. But in practice, high-quality consumables are able to cover this mileage without significant changes. The manufacturer prescribes replacement of spark plugs after a mileage of 60,000 km.

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As a rule, during normal operation, spark plugs maintain this interval. If the engine does not start well or runs rough after starting, the cause may be the spark plugs. The ignition system uses spark plugs of the AU17DVRM type or their foreign analogues BOSCH FR7DCU, BERU 14FR-7DU, CHAMPION RC9YC, NGK BCPR6ES.

Disconnect the negative cable terminal from the battery terminal. Overcoming the resistance of the rubber holders, remove the plastic engine cover.

We blow compressed air through the channels where the spark plugs are inserted so that when they are dismantled, no dirt gets into the hole. 7. unscrew the spark plug and take it out. Marking of ignition coils used on the VAZ-21124 engine: 2112-3705010-10 or BOSCH 0221 604 461 If the spark plug “sits very tightly,” do not use force. Otherwise, the thread of the spark plug in the cylinder head may be torn off.

In this case, bring the engine to operating temperature and then try to remove the spark plug. Wait to install new spark plugs until the engine has cooled down. If you screw a cold spark plug into a hot engine, it will sit there as if welded. Based on the condition of the spark plug electrodes and threaded part, you can determine whether the engine is operating optimally.

If the top of the spark plug insulator heat cone is light gray to gray in color, then the engine cylinder is operating normally and the fuel injection system is adjusted.

If the top of the heat cone of the spark plug insulator is white, then the ignition timing is incorrect.

Black, soot-like deposits indicate that the spark plug is not reaching its self-cleaning temperature (frequent short-distance driving), incorrect heat rating, too high carbon monoxide content. Oily layer on the electrodes.

Design

If we take into account the design of the candles, then they consist of the following elements:

• Contact output. Serves to connect high-voltage wires from the ignition system;
• Insulator. Due to it, the candles do not overheat;
• Insulator ribs. Do not allow electrical breakdowns;
• Central and side electrode. Serves to form a spark between them, which ignites the fuel mixture;
• Seal. This element prevents hot gas from escaping from the combustion chamber.

An important point in the correct operation of spark plugs is the gap between the electrodes.

Symptoms of a problem

If the spark plugs fail, there will be no spark. Consequently, the fuel mixture will not be able to ignite, the engine will freeze and show no signs of life.

There are several telltale signs that may indicate poor spark plug performance.

• The engine starting procedure gets worse. The starter turns, but the motor itself does not respond;
• Fuel consumption increases;
• CO emissions increase;
• At idle and while driving, the engine begins to jerk the car;
• The dynamic performance of the car drops, it is not possible to raise the speed to the required maximum, the engine power noticeably decreases, etc.

But all these are indirect reasons, since they do not directly indicate the failure of the spark plugs. You can verify their malfunction only by checking.

What are the dangers of choosing the wrong candles?

There is a wide range of spark plugs on the automotive spare parts market, which causes some inconvenience for car owners when selecting the appropriate model. The main difficulties are related to the fact that each engine is designed for a specific modification of spark plugs. When installing incompatible options, the following problems may occur:

• misfire of the air-fuel mixture due to an excessively large gap between the electrodes;
• malfunctions in engine functionality due to low spark power;
• rapid damage to the spark plug due to the electrodes flying out.

Other types of malfunctions that negatively affect the operating comfort of the vehicle cannot be excluded.

Gap

When performing a preventive check of spark plugs or while searching for the causes of an unstable engine, it is recommended to check the gap between the electrodes.

1. If the gap is larger than normal, the spark will form more than usual, the mixture will begin to ignite more strongly, and the flow rate will be more stable. In this case, failures in the operation of the motor may occur.
2. If the gap is smaller than required, the spark will begin to appear earlier than required. The small spark energy is not capable of effectively igniting the fuel mixture. This increases fuel consumption, but reduces engine power and worsens dynamics.

The gap between the electrodes on the injection VAZ 2110, according to the manufacturer’s recommendations, ranges from 1 to 1.13 millimeters.

Gap measurement

Setting the gap

The first step is to check whether the gap really deviates from the norm, and then take appropriate action. So, let's begin.

1. Get to the spark plugs, having first disconnected the high-voltage wires from them.
2. Use a feeler gauge to measure the distance between the two electrodes of your spark plugs. Special probes are sold that look like a folding knife.
3. Take a feeler gauge whose blade is exactly 1 mm thick.
4. Insert the probe into the gap between the electrodes.
5. Normally the blade should go in with a slight pinch, but you don't have to use much force to get it in.
6. If the blade is too loose, then the gap is too high. You will need to lightly press the upper electrode against the lower one until the required distance is formed.
7. If the blade is difficult to fit into the gap, then it was smaller than required. In this situation, you will have to do the opposite, bend the electrode slightly.

Adjusting the distance

When increasing or decreasing the gap, do not apply too much force, otherwise you risk breaking the element. In this situation, there is nothing left to do but change the spark plug.

What is the spark plug gap (injector)

These valve power units already have spark plugs that are slightly different from the previous ones. Therefore, it is not recommended to install them on 8-valve engines. In fact, under the article numbers that go to 8-valve valves there is the same model of spark plug, only with a different gap.

The most commonly used substitutes are listed below. Ten and eleven have the same analogues, only before installation it is recommended to check the gap and, if necessary, set it to the recommended values. It is worth saying that NGK spark plugs are a favorite among owners of these cars. They have the highest popularity and the most positive reviews. From the factory, the VAZs in question are equipped with ordinary nickel spark plugs, which do not have the longest service life and have a low ignition rate of the fuel-air mixture.

Therefore, drivers often resort to installing more expensive spark plugs with iridium thin electrodes.

The cars in question are most often equipped with such spare parts from Denso. And for cars with a valve engine - IK20 with a price of rub. And due to the fact that the iridium electrode is several times thinner, the spark does not dissipate.

In practice, there is a slight improvement in the dynamic characteristics of the motor, as well as a significantly increased service life.

Spark plugs for VAZ 2110, 2111, 2112 – which ones to put on the injector and carburetor

According to the experience of the owners, their actual service life is slightly lower, and rarely reaches 25 thousand. This is especially true if the car is operated in difficult conditions, or in severe frosts, since when starting a very cool engine, they can be filled with gasoline.

Subscribe to our channel in Yandex. Fills spark plugs 5 3k 0 P - glow plug error 7 2k 0 Lubricant for injectors and spark plug threads 8 9k 0.

When to change spark plugs?

Such malfunctions include: engine tripping, increased fuel consumption, difficult starting, etc. The condition of the spark plugs can be determined by visually inspecting the central part of the spark plug or its body. The presence of soot, dirt, and various cracks will directly indicate the need to replace it.

To make it easier for you to determine the condition of your candles by visible signs, we bring to your attention a special table. Using this table, it is very easy to determine the condition of the candles.

Step by step order

1. First, remove the plastic engine casing located on top. If the bolts are not corroded, they will come out easily.
2. Then disconnect the terminals from the individual ignition coils one by one.
3. Using a “10” key, unscrew the bolt that secures it to the cylinder head cover. When the bolts are unscrewed, move them to the side.
4. Using a screwdriver, remove it from its seat and move it to the side.
5. Inspect the spark plug wells for damage, and be sure to check for oil in them. And if oil is found in at least one of them, you should immediately find out the cause of its origin, since in most cases the culprit is a failed cylinder head gasket, and in this case you simply cannot do without removing the cylinder head.
6. Next, in order to dismantle the spark plug, we will need a special spark plug wrench, or a spark plug head and extension. This is what a spark plug looks like
7. We dismantle the spark plug using a little force. Please note that the key should be put on the spark plug all the way for the best fixation on it.
8. When unscrewing , be careful not to break the spark plug insulator , since scattered fragments will be very difficult to collect from the well and completely impossible from the cylinder, without disassembling these parts.

BRISK Classic L15Y

A characteristic feature of the Classic L15Y model is the ability to operate at reduced secondary voltage energy, which is suitable for older VAZ cars. A slightly lower heat rating and a small gap allow you to confidently start the engine at sub-zero temperatures; the spark plug warms up quickly and is not prone to sparking and carbon deposits.

However, because of this, the products may fail under loads and high temperatures, but for low-powered classic VAZ engines this will not be a discouraging factor. The service life is average in the class of budget candles based on copper and nickel.

The cost in the store is about 80 rubles per piece.

Source

TOP 10 best spark plugs for VAZ (Lada)

The most common type is gasoline cars, which require full maintenance. Usually a simple part like spark plugs doesn't raise many questions. However, the unit requires more attention than most motorists think. The stability of the engine and the service life of the ignition system depend on the correct choice.

In 2021, there are a large number of models and companies on the market that, in their opinion, produce the best spark plugs for VAZ and other car models. But it is not always the case.

What is the gap on the spark plugs of a car?

Which parameters of power and fuel consumption does it affect to a greater extent? This can cause the ignition coil to burn out - essentially shorting the output for a long time.

The engine is unstable at high speeds and may even stall. They need to be selected according to the car make and engine model, based on technical documentation data. If it is indicated that the gap should be 1. Before installing the spark plugs, look at them visually, because they could have been damaged during transportation: Related articles How to replace spark plugs in an engine with your own hands.

Tips What are cold and hot spark plugs - their differences? Flushing engine injectors - 3 most effective methods. Home Site search All articles Confidentiality Contacts.

Material on the topic: What gap should be on the spark plugs of a VAZ 2104 carburetor

Causes

The most common of them is the incorrect operation of the car's electronic unit. What’s most interesting is that the spark plugs on the injector are filled more often in winter at subzero temperatures than in summer. And this is not an anomaly. There are objective reasons for this. As the temperature drops, mixing the fuel-air mixture becomes more difficult because a large amount of oxygen requires a large volume of gasoline in cold air. In this regard, the electronic control unit sends a signal to the fuel injectors, thereby increasing the amount of fluid supplied. This is the main reason why the candle floods.

What is happening in the engine at this moment? The injectors supply gasoline to the combustion chamber of the engine, while the starter tries to create the necessary compression in the cylinders, while at the same time trying to produce a spark to generate a flash. At the same time, we should not forget about the quality of our fuel - a lot of impurities and dirt significantly worsen the operation of the injectors, hence the corresponding troubles.

With ideal compression, the spark plugs can easily start even with a minimal impulse, but this only happens on new cars. Therefore, it fills spark plugs on the injector most often on cars more than 3-5 years old.