Which spark plugs are best? Marking of iridium spark plugs.

A malfunction of the spark plugs immediately affects the operation of the engine; it begins to stall, jerk, does not pull, or starts poorly. To solve the problem, simply replace them with new ones, but which spark plugs are better to choose?

All modern 8 and 16 valve power units have the same manufacturer's recommendation. In other words, advice on choosing spark plugs will be similar for all modern Lada cars.

In the user manual for Lada Priora, Kalina, Granta, Vesta Largus, Niva and XRAY cars, the engine technical specifications contain the following data:

VAZ 11183, VAZ 11186/11189

VAZ 21126, VAZ 21127

Granta, Kalina, Largus, Vesta

Granta, Kalina, Priora

The gap between the spark plug electrodes should be within 1.1.15 mm. Let us remind you that Lada Vesta and Lada XRAY can be equipped with a Nissan-Renault HR16/H4M engine. The spark plug gap in this case should be 0.85...0.95 mm. For K4M/K7M engines (more about spark plugs), the gap between the spark plug electrodes is 0.95+-0.05.

According to the requirements, the manufacturer must guarantee uninterrupted operation of the spark plugs for 18 months, provided that the vehicle mileage does not exceed 20,000 km. However, with good technical condition of the engine and proper operation, the service life of the spark plugs can be significantly longer. Thus, spark plugs are often replaced every 3 years or after 40 thousand km.

Marketers suggest improving engine performance by installing, for example, iridium, platinum or multi-electrode spark plugs on the Priora, the price of which is higher than usual. AvtoVAZ recommends using conventional, single-electrode spark plugs for its engines. In a review by ZaRulem magazine, a survey was conducted that shows that the majority of drivers follow the factory’s recommendations and choose simple, inexpensive spark plugs.

As part of the same review, nine different spark plugs were tested. As a result, they all passed the tests, and the winner was determined by summing up the points:

So what spark plugs should I put on Priora/Granta/Kalina/Vesta? Based on the recommendations of AvtoVAZ, the test results of a popular car magazine and a survey of the social network VKontakte, we can conclude that the best choice would be spark plugs from manufacturers: NGK, Bosch, Denso, Brisk and EZ Standard.

What kind of spark plugs do you use? What is the main factor when choosing them? Let us remind you that a high-quality battery also affects engine starting.

The durability of the engine and its service life largely depend on the condition of all its components and parts, as well as on the quality of consumables that are used to service the power unit. One of the most important elements on which the trouble-free operation of the engine directly depends are the parts that ignite the fuel, spark plugs. According to the Priora operating instructions, after every 30 thousand km, it is necessary to replace the spark plugs. However, this interval can vary significantly in one direction or another, depending on many factors that should be considered in detail. In addition, you need to have a good understanding of what spark plugs can be installed on a VAZ 2170.

When do you need to change spark plugs?

The replacement interval of 30 thousand km is very arbitrary. The AvtoVAZ company equips Priora engines with domestically produced single-electrode spark plugs marked A17DVRM for a 16-valve unit and AU17DVRM for an 8-valve unit. Practice shows that even on a new car, these spark plugs often fail long before the end of the service interval, causing unstable engine operation and increased fuel consumption. For this reason, many car enthusiasts prefer imported products.

Description of types and markings

When the need for replacement arises, you should decide which candles are best to install. The most popular brands are Brisk, NGK and Bosh. However, they have different markings adopted in Europe, so you need to know which imported candles correspond to the domestic markings. The interpretation of this marking, according to OST 37.003 081 - 98, is as follows:

1. The first letter A means the type, diameter and thread pitch - M 14 x 1.25.
2. If the letter U follows, it indicates the size of the hexagon for tightening the spark plug, 16 mm. In the absence of the second letter, the product has a size of 20.8 mm.
3. The number 17 shows the heat number. When the engine is running, the spark plug heats up to a certain optimal temperature, at which it self-cleanses. In the event of unfavorable operating conditions, overheating of the electrodes occurs, and the fuel in the cylinder can ignite spontaneously, without waiting for a spark to occur. This effect is called glow ignition, and the glow number of a candle is a parameter indicating the temperature regime of its proper operation. The higher this parameter, the less the product heats up (cold candle) and can work in much more difficult conditions than a candle with a low heat rating (hot). In engines with high power and high speeds, colder spark plugs are used, and for power units with lower loads, hot products are used.

Marking of imported spark plugs on Lada Priora

1. The letter D indicates the length of the thread (skirt) - 19 mm.
2. The letter B means that part of the insulator protrudes above the plane of the product body.
3. The letter P indicates that a resistor is built into the spark plug body to suppress interference from sparking.
4. The last letter M indicates that the central electrode is bimetallic with a copper core.

Recommendations for replacement

This operation is extremely simple; any car enthusiast can change the spark plugs on a Priora. You must have a 10mm wrench and a spark plug wrench with a universal joint and a rubber bushing, which is located inside the hexagon and allows you to pull spark plugs out of deep wells. Instructions for performing the work:

1. Open the hood and remove the plastic decorative panel from the engine; on the Priora it is attached with rubber bushings and removed by hand.
2. Remove the terminals from the ignition coil, then use a 10 mm wrench to unscrew the fastening bolt and remove the coil.
3. Insert the spark plug key into the well and push it onto the spark plug until it stops, carefully loosen it and unscrew it, and pull it out of the well along with the key. It happens that the candle cannot be weakened. In this case, you cannot force the key; you need to try to do it on a hot engine. If this does not help, you can treat the wells with WD-40 aerosol lubricant, then put a short piece of metal tube, up to 40 cm in size, onto the spark plug wrench knob. Very carefully apply force to the lever and move the spark plug along the thread. If the tube or key begins to bend from force, and the spark plug does not give in, you need to complete the process and seek help from a car service center.
4. After checking the gap between the electrodes, insert a new spark plug into the hexagon of the key, immerse it in the well and screw the spark plug into place. Tighten by applying manual force to the key knob, without any additional levers, otherwise it will become problematic to loosen the spark plug next time.
5. Reinstall the ignition coils in reverse order, insert the terminals and put the decorative panel on the engine. Start it, make sure it is working properly and close the hood.

The correct choice of a set of spark plugs for the Priora and their timely replacement in the event of a malfunction will extend the life of the engine and help prevent serious consequences from incomplete combustion of the fuel mixture.

Which candles are better for Priora 16th grade: review, types and tips

A huge number of systems are used in the design of the motor. Which wipers are better for winter and the nuances of choice. One of these is the ignition system. It consists of coils, armored wires and spark plugs. The latter play a significant role in the operation of the internal combustion engine. The engine life depends on their quality and serviceability. Experts recommend replacing them every 30-40 thousand kilometers. What spark plugs are suitable for Priora and how to install them? Let's try to understand this issue.

Classification

You need to approach your choice as responsibly as possible. It is worth deciding which type of spark plug is best suited for the car. So, these elements have their own classification according to:

• Number of electrodes: two- and multi-electrode. The first type consists of several elements. These are the side and central electrodes. These are installed standard on Priora. As for the second type, they have one central and three side electrodes. 14fr7du. What spark plugs are currently best for VAZ 16 cl.? As reviews note, these candles have a longer service life and are more reliable.
• Type of material. Often spark plugs are equipped with copper electrodes. What are the best spark plugs for Priora? Judging by the reviews, they have a short resource - up to 30 thousand kilometers. But recently more “tenacious” iridium analogues have appeared on the market. Their resource is about 60 thousand. By the way, such candles have a slightly smaller diameter of the central electrode. If on copper it is 2.5 millimeters, then on iridium it is 0.7 millimeters.
• Thread diameter. When purchasing, check with the seller for which engine you need spark plugs. Thus, 16-valve valves are equipped with elements with a smaller head size and thread diameter. Spark plugs from an 8-valve engine simply won’t work in a 16v Priora.
• Heat number. This parameter means the pressure at which it is easier to heat the candle. Candles for Priora 16 cl: which ones are better to install. There is a cold and a hot type. The glow number of these candles is 20 and higher for the first and 11-14 for the second. Which spark plugs are better for Priora 16 cl.? There is no clear answer to this question. According to Auto-VAZ recommendations, spark plugs for 16 valve Priora are which spark plugs are best for 16. But there are also universal options. In this case, the glow number is from 11 to 20. These are the spark plugs that many motorists use. They behave well both in summer and in cold weather.

Spark plugs for VAZ 2113/2114/2115

VAZ 2113, 2114 and 2115 (Samara-2 series) are very similar in design, have a common platform and are equipped with the same engines - 1.5 (VAZ-2111, 77 hp) and 1.6 (VAZ-21114, 82 hp . or VAZ-11183, 81 hp).

Spark plugs for VAZ 2113/2114/2115 do not differ in any way depending on the configuration, year of manufacture of the car, or the installed engine. The same spark plugs are installed on all 3 cars. The original manufacturer is the Russian company “E3”, Engels. What is noteworthy is that the production facilities of this company belong to Bosch. Spark plugs for VAZ 2113, 2114, 2115 – which ones to install?

On VAZ 2113/2114/2115 with 1.5 and 1.6 liter engines, spark plugs should always be placed under article number 21110-3707010-86. It is also found under other numbers - 21110-3707010-00 or 2111-3707010. In fact, these are all the same spark plug. In the manufacturer's catalogs it has the article number A17DVRM. This spark plug has a central nickel electrode, single-contact, short thread, tightening torque - 22 Nm.

The dimensions of the original spark plug are shown below.

* according to Champion nomenclature (Russian standard)

Original candles, as a rule, are usually sold in branded packaging from LADA. Less often you can find them directly from the manufacturer - the Engels plant. They come from the manufacturer a little cheaper. The reviews from most drivers about this spare part are positive, and there are not too many fakes on the market, due to the fact that they do not have a very high price.

What analogues are there?

The most famous substitutes for the originals from other manufacturers are presented below.

In addition to conventional (nickel) analogues, more modern platinum or iridium spark plugs are also somewhat popular. They are installed to achieve a slight improvement in the dynamic characteristics of the engine. This is achieved thanks to a thinner electrode than nickel models. In addition, they last several times longer. For VAZ 2113, 2114 and 2115, the most popular are platinum Bosch 0242235540 at 200 rubles/piece, or iridium DENSO IW20TT, 610 rubles/piece.

When to change spark plugs on a VAZ 2113/2114/2115?

According to the maintenance regulations for VAZ 2115, 2114 and 2113, spark plugs must be changed every 30 thousand km. But, as the experience of drivers shows, this period needs to be reduced by half on average, and in fact, replacement needs to be done every 15 thousand km. This is influenced by many factors, the main ones being fuel quality and operating conditions.

What does the manufacturer recommend?

The Volzhsky Automobile Plant regularly uses spark plugs marked AU17DVRM. . Judging by the reviews, the service life of these spark plugs is 25 thousand kilometers. This is quite good, considering the low cost - 400 rubles per set. But products with this marking perform poorly in cold weather. What spark plugs should I put on the Priora 16 valves for winter use? Here it is better to use “Priority A 15 DVRM”. These candles have a lower heat rating. They ignite more easily at subzero temperatures.

BOSCH W7DC

BOSCH W7DC

Such candles have a working range that provides versatility of use. Sometimes they work on motors that require different temperature characteristics, which emphasizes the stability of German products.

The model is well assembled - it consists of a copper core and a shell with increased anti-corrosion properties. The gap here is 0.7-0.8 mm. The key size is 20.8.

One can note some optimism in setting the heat number in relation to old VAZ car engines.

The average cost for one candle is 150 rubles.

Advantages and disadvantages

• High-quality assembly of the part.
• Uninterrupted operation under heavy loads and low temperatures.
• Price corresponding to quality.
• The mixture may get on the spark plugs.

Analogs

Which spark plugs are better for Priora 16 cl.? For those who do not want to buy factory spark plugs, there is a huge selection of analogues:

• Products from the British. Which spark plugs are best to choose for a Lada Priora car? How to properly replace spark plugs with your own hands? Which spark plugs are better for Priora 16 cl.? For such an engine it is worth purchasing the “Champion” RC9YC.
• Candles from German. They are little popular, but have a high resource. The marking for Priora is 14FR7DU.
• Japanese candles NGK. Zheka147 › Blog › Which spark plugs are best to choose for which spark plugs to put on Priora a for 8. Perhaps the most popular analogue of factory products. For the 16-valve Priora , NGK marked BCPR6ES is ideal.
• "Denso". This is also a Japanese manufacturer. The cost is on par with NGK, and the quality is not inferior either. For Priora you should buy Denso Q20PR-U11.
• "Brisk" (Czech Republic). Another popular spark plug manufacturer. The manufacturer offers products with different heat ratings and number of electrodes. Spark plugs DR15YC-1 are suitable for Priora The same ones are used on Kalina engines of the first and second generation, with a 16-valve timing mechanism. But judging by the reviews, the products are of low quality - the electrodes are greatly offset from the center, which is unacceptable for such products.

Replacing spark plugs on a Priora

Welcome! A spark plug is a very important, although small in size, thing that is needed to ignite the fuel-air mixture in a car engine cylinder; in simpler words, thanks to them, the car drives and if you unscrew them, you will no longer start it, because the mixture they ignite will not ignite and therefore the engine will not start.

Note! In order to replace spark plugs on a Priora (And they are located in completely different places, unlike 8 valve engines), you will need to stock up on: A set of wrenches, as well as the spark plug wrench itself, which comes specifically for the car and you will need all this the probe with which you will check the spark plugs for the gap that they have set, if the gap at the electrodes of the spark plug is too small (a defective spark plug, but it can be made normal using this very probe) then you will need to adjust it and thereby return it to the correct one clearance at which the engine will operate normally, confidently and not stall!

• Replacing spark plugs
• Additional video clip

Where are the spark plugs located? The spark plug in 16 valve engines, in contrast to 8 valve engines, is in a radically different place; they still continue to be screwed into the cylinder head, but only in 16 valve vehicles they are screwed in from above, while on 8 valve engines they are clearly visible from the side, for clarity, a little Below you can look at the photo, in which the arrows indicate the four ignition modules under which the spark plugs are located.

Note! But you won’t see a picture like the one above on your car, since the engine of a 16-valve car is always closed from above with a so-called screen (Indicated by a red arrow), you will have to remove this screen and only after that you will be able to get to the ignition modules, and only after that modules, right down to the candles themselves! (You will learn how to remove this screen a little later as you read this article)

When should you change spark plugs? The spark plugs must be replaced if the car’s engine starts to stall, that is, when tripping, the engine will twitch, it will also have difficulty picking up speed and in general it will be noticeably worse to drive, in addition, if the spark plug is faulty, the engine will start even worse.

These are all signs, but what about the recommendations given by the manufacturer, you ask? Let's look at this in more detail! According to the factory's recommendations, if the spark plugs are the most common and their electrodes consist of copper or yttrium, then they need to be changed at intervals of 30,000 thousand km, because they burn out quickly, but if you use spark plugs whose electrodes are coated with platinum or iridium, then You will have to change such spark plugs much less every 60,000 thousand km, and all because platinum is more resistant to high temperatures and, in addition, it is resistant to corrosion of the spark plug electrodes, where it is used!