Which spark plugs are best for the Lada Granta 8 valve: TOP-9 best spark plugs, which ones are best to install

The Lada Granta with an 8-valve engine is one of the most popular vehicles in the domestic automobile industry. This is not surprising, because the machine is easy to maintain, visually attractive and affordable. In order for a car to serve for a long time without malfunctions, regular and correct maintenance is required, one of the items of which is changing the spark plugs. This is one of the important elements of the motor. It is the spark plugs that directly influence ignition and other important processes. That is why their purchase should be approached with all responsibility. So that you can make the right choice, we will provide professional advice on which spark plugs are best for the Lada Granta 8-valve. In addition, we have compiled for you the TOP 9 best spark plugs, from which you can choose the right option for yourself.

The best spark plugs for Lada Granta

Comparative characteristics

The comparative characteristics of the models will help you choose spark plugs from our rating.

Table. Comparative characteristics of spark plugs.

Types and characteristics of spark plugs

There are several types of spark plugs. First of all, the elements are classified depending on the dimensions of the hex key:

• SZ turnkey 16 mm;
• SZ turnkey 21 mm.

The length of the threaded part is 19 and 26.5 mm, respectively.

In addition, these elements are distinguished by length and thread pitch. Depending on these parameters, SZ are 10, 12, 14 and 18 mm, the thread pitch of which is 1.25.

One of the main parameters for candles is the heat rating. In this case, its indicator is seventeen. It is this parameter of the product that allows the part to withstand glow ignition, which causes engine detonation, which causes its breakdown.

Spark plug heat number

According to the heat index, spark plugs are classified as follows:

• cold – above 20;
• average – from 16 to 19;
• hot – from 11 to 14.

Thus, only medium SZ should be installed in Lada Granta cars. The use of cold elements leads to problems with starting the engine, and hot elements lead to detonation and, as a consequence, engine failure.

Attention! In some systems, the heat indicator may have different numbers. The main thing is that it is average.

How to get rid of unnecessary details

Any 16-valve engine has a plastic protection installed on top. But the protective cover can always be removed by simply pulling the part up. By the way, the rubber supports on the covers of motors 21126 and 21127 will be the same (see figure).

Cover and 4 supports, motor 21126 Cover and the same supports, motor 21127

It is recommended to unscrew the filler plug, but you can leave it in place. The lid must be pulled up, snapping off the supports one by one.

Practicing on motor 21127 Four supports snapped off

Everything looks more complicated than it actually turns out to be. Try it!

Actions before replacement

First of all, we recommend disconnecting the negative terminal of the battery. To do this you need a key “10”. Then disconnect the ignition coil connectors. The appearance of one connector is shown below.

By pressing the latch, the connector is pulled up

Next, taking a TORX E-8 wrench, unscrew the screw securing the coil.

Need a TORX spanner

The coil itself can be pulled out by holding it by the connector body.

The connector will not break, try it

Finally, the engine is ready to replace the spark plugs. This process is discussed further.

Do not allow dust to get into the spark plug well! If necessary, you can use a can of compressed air.

What kind of spark plugs are installed at the factory?

At the manufacturer's factory, spark plugs are installed in the engine, the heat value of which is seventeen. The manufacturer recommends that vehicle owners install products with this indicator in the future.

If we talk about which spark plug manufacturer AvtoVAZ prefers, then there is no clear preference. Different conveyors use different models.

However, most car enthusiasts claim that they purchased a car with A17DVRM spark plugs from the Saratov manufacturer ZAZS OJSC.

Most car enthusiasts claim that they purchased a car with A17DVRM spark plugs

Let's sum it up

Taking into account the above information, it becomes clear that choosing Lada Granta spark plugs for an 8-valve engine is quite simple. You can use both original solutions supplied by the manufacturer and analogues from other manufacturers.

The main thing is to choose the spark plugs correctly, that is, taking into account the basic parameters for an internal combustion engine of this type (heat rating, physical dimensions, etc.). It is also important to buy spark plugs from trusted sellers to eliminate the possibility of purchasing a fake.

We also recommend reading the article on how to determine the condition of the engine by spark plugs. From this article you will learn how to diagnose an engine using spark plugs, as well as what nuances you should pay attention to as part of such a check of the condition and quality of operation of the power unit.

Finally, we note that the above basic rules and recommendations are also relevant for many other cars with a similar type of engine (for example, selecting Grant 16 valve spark plugs and replacing them.) Only the parameters of the spark plugs themselves will differ, and there may also be some individual nuances in terms of replacement on a motor of one type or another.

Rules for replacing spare parts

When replacing spark plugs, you should not rely on the mileage of the vehicle. The fact is that one part can withstand 100,000 km, while the other cannot withstand 20,000. This indicator depends both on the condition of the engine and on the spark plug itself. For this reason, there is no exact data on at what stage of a car’s mileage it is better to change these parts.

Experienced Lada Granta vehicle owners recommend performing the appropriate manipulations after the second oil change. The fact is that low-quality fuels and lubricants can lead to premature wear of parts. In addition, no one is safe from purchasing counterfeit candles instead of original ones. For this reason, it is best to play it safe and change the corresponding elements after every second oil change.

In addition, it is recommended to perform the procedure earlier than the specified time if the following problems occur:

• long rotation of the starter when starting the engine;
• the engine does not start or starts after a long delay;
• when the car is warming up or moving in neutral gear, uncharacteristic engine sounds occur;
• increased gasoline consumption;
• if you unscrew the spark plugs, they will be wet or filled with gasoline;
• a decrease in car engine power, which becomes especially noticeable when the vehicle moves uphill.

Rules for replacing spark plugs

Candles from Engels: who will you mess with?

Every Soviet car, be it a Kopeika, Moskvich or Volga, was equipped with spark plugs with the EZ symbols, known to every motorist. This brand is still alive today, and Engels candles are now produced side by side with Bosch products. We decided to find out about the German influence on the Russian candle factory

Ivan Sokolov
Even half a century later, the situation is almost the same: spark plugs from Engels are installed on most of the cars assembled in the country. Indeed, at the moment, Robert Bosch Saratov LLC can boast of considerable productivity: about 50 million candles are collected here per year. The only difference with the Soviet past is that now some of the products bear the Bosch brand. But perhaps the most impressive change that has occurred since the arrival of Robert Bosch GmbH is the unprecedented growth in product exports. After all, now the only operating production of automobile spark plugs in Russia sells more than 60% of its products abroad! In 1997, when a German company acquired a controlling stake in the Automotive Glow Plug Plant, production changed almost completely, which made it possible to raise the quality of Russian components to a much higher level.

CEO Eckart Reilen decided to buy a UAZ Patriot in order to experience for himself the performance of Bosch products installed on an SUV

Almost all the factory buildings were rebuilt, as was all the equipment: part of the assembly line was transported from the Bosch plant in Bamberg, part was purchased from previous suppliers, and some conveyor elements were specially created for this production. According to Eckart Reilen, CEO of Bosch-Saratov, the main reasons why it was decided to organize its production in Russia are the available resources: steel, electricity, land rent and labor. All this is much cheaper than in Europe. Due to cheaper labor, it makes no sense yet to increase the level of automation to the levels of production in Germany.

Insulators are converted into such briquettes after pressing under a pressure of 500 atm

Initially, the location of the plant was chosen due to the rich deposits of alumina - a substance necessary for the creation of ceramic insulators. But ironically, these raw materials are now supplied from Germany: the alumina obtained from new local deposits no longer satisfies Bosch in terms of quality, namely the shrinkage coefficient. Other components (sealant, glaze, central electrodes), as well as some tools, are also supplied from abroad.

After going through the stage of firing and cooling, the insulators are covered with glaze

Making an insulator is by no means the simplest production stage, as it might seem at first glance. Due to the duration of this stage, the production time for one candle reaches up to 5 days. The process of creating an insulator begins with carefully grinding alumina, chalk, talc and other additives in a kind of “mill” to a fine state. Then the resulting white “flour” is pressed under pressure of 500–600 atmospheres in special molds, after which the insulators are ground and take on their approximate final shape. But this is really still a kind of prototype of a candle. Try to take such a product in your hands and press lightly: the white tube breaks, as if it were really a flour product. To give strength, the workpieces are placed in a special oven, in which they will remain for more than a day at a temperature of 1600 degrees. The oven is not simple: a German installation costing 1.5 million euros allows for uniform temperature at any point in the chamber with an error of 3 degrees. Extreme care and precision are necessary here, because the insulator after baking is reduced by about 20%. It is precisely because of this that the heat treatment process is so important and requires almost pinpoint precision. After all, after cooling, coating with a special glaze and assembling with the central electrode, this insulator should ideally “mate” with the metal body of the candle.

The collected candles are awaiting the final stage - packaging

The process of creating a case is not so long, but no less interesting. The skeins with 13 mm fittings standing near the machines are nothing more than semi-finished products of future candle bodies. One end of the reinforcement is launched into a machine, which cuts it into small blanks, and those, in turn, in just 5 strokes of a 120-ton press are transformed into an almost finished candle body. The cold stamping method, as opposed to turning, allows metal waste to be minimized. Then a side electrode is welded to the base of the body, a thread is rolled onto the body, it is nickel-plated, and after that the ceramic and metal elements of the spark plug are connected by rolling the metal “skirt”. The candle is ready - all that remains is to pack it.

Before firing, the insulator breaks easily in the hands, and its size exceeds the final dimensions by 20%

But at the end of the excursion, many journalists were tormented by the same question: what is the difference between Bosch and EZ candles produced on the same machines? Indeed, the equipment and production scheme for both Bosch and EZ candles are the same. But the materials are still different. First of all, this concerns the steel of the central and side electrodes, which affects the service life. Thus, the estimated mileage on standard EZ spark plugs is about 30 thousand km, and on Bosch spark plugs - 40–50 thousand km. But now improved EZ spark plugs have appeared in the range: for example, EZ Standard with three side electrodes have improved ignition characteristics and a longer service life. There are also more advanced spark plugs: thanks to the use of yttrium alloy in the central and side electrodes, EZ Yttrium plugs have increased resistance to corrosion, which provides an increased spark plug life, and the V-shaped side electrode provides improved flame propagation and better combustion, which increases engine power and reduces fuel consumption.

This is what the process of joining the insulator and the housing looks like: the joint is filled with sealant, and the housing is rolled

It would seem such a simple detail, but what a lot of hassle! The main thing that is known for sure is that the quality of Russian components has really begun to improve. In recent years, the number of defects at the plant has decreased to almost zero: since 2009, the rate of failures among automakers (number of returns) has decreased from 67 to 0.35 per 1 million units. Moreover, the “patronage” taken in this case over Saratov production brought other fruits: external investments in the Volga region increased, more jobs appeared, and working conditions have now become more than decent. The Germans are especially proud of the improvement of the industrial park, which had been in deep decline since the times of the USSR: for example, soil contaminated with oil products was cleaned and neutralized, and harmful asbestos was removed from previously constructed buildings (the Germans cannot understand why the Russians so often used materials with such a harmful substance). If such pleasant changes require support from foreign colleagues, then why not?

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What does carbon deposits on NW indicate?

If a light brown soot appears on the NW, then there is no reason to worry. This is a normal process and does not indicate any failure. If the deposit has a different shade, then this indicates a malfunction. By its color you can determine what exactly happened:

• red and white soot indicates the use of low-quality gasoline;
• black tint indicates leakage of lubricants;
• loose soot of a dark shade indicates the need to change fuels and lubricants;
• an oily coating indicates that lubricant has entered the combustion chamber;
• a red tint of soot may indicate a breakdown of the gas converter;
• an ashen color indicates problems with the valve stem seals.

Attention! If the spark plugs have not only plaque, but also any damage, then it is recommended to replace them.

Video - Diagnostics by candle color

How to check Grant's high-voltage wires (HPV)

After replacing the spark plugs, you can check the high voltage wires (high voltage wires) that go to the spark plugs. This is necessary in order to make sure that the wires do not “pierce” and the spark on the spark plugs will be constant.

To check we need a tester. We switch it to ohmmeter mode and begin the test. We measure the resistance of the wires; for serviceable wires, the resistance (depending on the length) should be in the range of 3.5-10.0 kOhm. No more than 15 kOhm. If your measurements exceed these values, then such wires should be replaced. They need to be replaced as a set, 4 pieces at once.

Sources used:

• https://lada.i-love-mycar.com/svechi-dlja-granta-8-kl/
• https://carfrance.ru/menyaem-svechi-na-lada-granta-s-16-klapannym-dvigatelem/
• https://obzor-expert.com/kakie-svechi-zazhiganiya-luchshe-dlya-lada-granta-8-klapannaya-top-9-luchshih-svechej-zazhiganiya-vidy-i-pravila-zameny-zapchastej/
• https://x7.by/remont/207-zamena-svechei-zazhiganija-na-lada-granta-16-klapanov-svoimi-rukami.html
• https://remontautomobilya.ru/kak-zamenit-svechi-zazhiganiya-na-grante-na-8-i-16-kl-motore.html

Spark plug replacement procedure

To change spark plugs correctly, you need to proceed as follows:

1. Turn off the car engine and wait until it cools down.
2. Remove the cap СЗ and move it to the side.

   
   Remove the SZ cap and move it to the side

3. Take a clean piece of cloth or a brush and carefully brush the area around the element you are replacing.

   
   We take a clean piece of fabric or a brush and carefully treat the area around the element being replaced with it.

4. Unscrew the part using a special key.

   
   We unscrew the part using a special key for this.

5. Install the new element and tighten it.

   
   Insert a new element and tighten it

Video - Changing spark plugs on a Lada Granta

Rules for choosing candles

When choosing a SZ, you should focus on such points as:

• turnkey dimensions;
• potassium number indicator: the optimal option is 17, but other values ​​are acceptable, the main thing is that the potassium value is average;
• distance between electrodes - in this case it is best to choose spark plugs with a gap of up to 1 mm;
• thread dimensions;
• type of electrodes - it is best to give preference to nickel elements.

So which spark plugs should you choose for a Lada Granta with an 8-valve engine? When purchasing, it is recommended to take into account the specified characteristics, as well as the manufacturer and cost of spare parts. So, if you need inexpensive spark plugs, which are most often installed in cars at the factory, pay attention to the Bosch Group model, A17DVRM 0.7 4 pcs. Among the budget elements, we can also recommend the Lada-Image ZAO 21110370701000 option. If the price does not matter to you and you require SZ with a long service life, take a closer look at the NGK 4919 BCPR6EIX-11 model. You can choose any product from our TOP that suits you in terms of technical characteristics and price.

Video - How to choose the right spark plugs

Replacement and maintenance points

What are the best spark plugs? The manufacturer strongly recommends installing spark plugs on the VAZ-2190, version 8 valves that meet the standards of the AU17DVRM brand. These products are of domestic origin, or more precisely, they are manufactured at ZAZS Russia OJSC.

Catalog code – “21110-3707010-00”.

If we consider foreign analogues, we should highlight the following:

• "WD7DFC", produced by the German giant "BOSCH";
• “BCPR6” from the “ES-11” series from the Japanese brand “NGK”;
• "DR15YC" from the BRISK corporation (Czech Republic).

Each car owner decides for himself which spark plugs are best.

The entire set (4 pcs.) should be replaced. When choosing the parts you are looking for, pay attention to their technical characteristics. The following set of parameters will be relevant for a candle:

• diameter of the threaded section;
• its length;
• heat number.

The purchased spark plugs must fully comply with the needs of the LADA Granta engine in terms of the indicated characteristics.

How to adjust the gap?

Performing maintenance involves cleaning the electrodes from accumulated carbon deposits and adjusting the gap. This parameter should not be allowed to exceed the manufacturer’s permissible requirements. The process of the spark plug involves reducing the height of the central electrode with the simultaneous formation of a rounded depression on the inner sphere. This implies an increase in the gap, the value of which is subject to adjustment. It is set using probes and corresponds to the limits of 1.0 - 1.5 mm. If the gap is set correctly, the probe will penetrate between the electrodes with a noticeable tension.

Clearing away cinder deposits

You should resort to this procedure if the need arises and cinder deposits have accumulated on the electrodes. Here we do not recommend using pointed objects made of hard steel. Use a wire brush with soft bristles or sandpaper. Alternatively, you can resort to cleaning using a chemical or thermal method.

Inspect the condition of the electrodes after 10 thousand km or earlier, if the engine prompted this by its capricious operation. If the intensity of use of a LADA Granta car is low, then inspect the spark plugs once a season (twice a year).

Replacing spark plugs is very common, and the owner of a Lada Granta is not provided with a full guarantee of the high-quality functioning of the system and, accordingly, the engine. Also, no one will undertake to claim that the new spark plug will withstand the regulatory service life of 30 thousand km.

We change spark plugs if the following circumstances occur:

• there were signs of a poor (not the first time) engine starting;
• the unit is troit;
• traction performance has deteriorated significantly;
• mileage exceeded its regulatory limit of 30 thousand.

Be aware of the risk of injury from high voltage traveling through the wires leading from the coil to the spark plug tips. An important element of the spark plug is replacing them, so it must be done carefully.

Sources

• https://KrutiMotor.ru/svechi-zazhiganiya-lada-granta-kakie-luchshe-vybrat/
• https://cars-rating.ru/avtotovary/kakie-svechi-zazhiganiya-luchshe-dlya-lada-granta-8-klapannaya
• https://1LadaGranta.ru/komplektuyushhie/svechi-zazhiganiya-8-klapannaya.html
• https://la-granta.ru/osobennosti-proverki-i-zameny-svechej-zazhiganiya-na-lade-grante.html
• https://prometey96.ru/remont/svechi-na-grantu-8-klapanov.html
• https://carfrance.ru/vybor-i-zamena-svechej-zazhiganiya-na-8-mi-klapannoj-lada-granta-11183-11186-21116/
• https://Vaz-Russia.com/vse-ob/top-10-luchshih-svechej-zazhiganiya.html
• https://carfrance.ru/kakie-svechi-zazhiganiya-podojdut-dlya-lada-granta/
• https://Vaz-Lada-Granta.com/dvigatel-korobka/svechi.html

Voting for the best spark plugs for Lada Granta

Which spark plugs would you choose or recommend at Grantu?

Lada-Image CJSC 211103707010

22.22 % ( 36 )

EYQUEM RC62LS

2.47 % ( 4 )

WEEN 121-1370/KMR6C11

2.47 % ( 4 )

HOLA BH7CR11

0.62 % ( 1 )

Bosch Group, A17DVRM 0.7 4 pcs.

25.31 % ( 41 )

NGK 4919 BCPR6EIX-11

11.11 % ( 18 )

BERU Z121

1.23 % ( 2 )

NGK BPR6ES

18.52 % ( 30 )