Not all spark plugs are suitable as consumables for engines FL Grants because some products for the ignition system are original, they are installed directly at the factory. And others are analog spark plugs, which are used for replacement after 30 thousand (according to the standard AvtoVAZ manual) mileage, or even much earlier.
As for replacing spark plugs, here too many of the representatives of our garage community are accustomed to taking these consumables not according to their intended purpose for certain engines, but depending on a particular brand of the manufacturer.
FL grants, or rather, their engines can have both 8 valve (
VAZ11186 and VAZ21116 ) and 16 valve ( VAZ21126 and VAZ21127 ) gas distribution mechanisms. That’s why in this review of spark plugs we will separate them according to whether they belong to 8- or 16-valve Granta FL engines, respectively.
Top 5. Hammer F6TC
In terms of cost, Hammer F6TC spark plugs are the most affordable in the rating. The closest competitor, the budget BRISK DR15YC-1, will cost 50% more.
- Country: China
- Average price: 59 rub.
- Electrode material: nickel
- Heat number: 7
- Gap: 0.4mm
- Resource: 25000 km
Owners of a Lada Granta with a fuel-injected 8-valve engine often choose budget Hammer F6TC spark plugs, which have quite decent performance characteristics. Users note their reliability and high spark generation rates. Due to the presence of a universal mounting size, the presented spark plugs are suitable for use in both cars and gasoline-powered motorcycles. In their reviews, Lada Granta owners note the high-quality assembly of the Hammer F6TC, thanks to which they are guaranteed to serve the service life declared by the manufacturer, although it is not particularly durable.
Varieties and features
When purchasing spark plugs, you will need to pay attention to the material used to make the electrodes, as well as their quantity. Because not all motors will require the use of single-electrode models.
Based on the number of electrodes, products are divided into several varieties, among which the following models are popular:
- Two-electrode. The product is equipped with a central and side electrode. The product belongs to the classic models, as it is installed in most vehicles. During startup, a spark is formed between the two electrodes, which ignites the fuel mixture.
- Multi-electrode versions are also available. The peculiarity of this option is the presence of more than two side electrodes. The principle of operation is practically no different from the previous copy. However, most people like this design because of its reliability and stable operation.
- The latest model is plasma-prechamber. A similar element appeared not so long ago, about 20 years ago. At the same time, most specialists cannot understand the meaning of the invention of this product; of course, there are differences from the traditional element, but they cannot be called too significant. The main feature of the design is that the spark plug body acts as a side electrode; for this purpose it is equipped with a heat-resistant nozzle, thanks to its action a spark is formed.
Despite all the improvements that companies are making, most buyers still prefer to purchase only classic candles that have a standard electrode.
Top 4. NGK V-line 13
These are the best-selling spark plugs in the NGK V-line model line, as they are suitable for installation on most popular cars of different brands, including the Lada Granta.
- Country: Japan
- Average price: 149 rub.
- Electrode material: nickel
- Heat number: 6
- Gap: 1.1mm
- Resource: 30000 km
These spark plugs ensure ignition of even a lean mixture, which for the Lada Granta internal combustion engine with 8 valves allows for easy starting in the most severe temperature conditions. The reliability of the design and high quality manufacturing not only solves the problem of misfires, but also guarantees ideal conditions for the operation of the ignition system with minimal load on the coil. The experience of owners who have used these spark plugs on Lada Granta in different climatic conditions confirms their impeccable performance. At the same time, many would like to see an increased service life, but it is not recommended to use these candles longer than the period stated by the manufacturer.
Electrode material
Also, when purchasing spark plugs, you need to pay attention to the material from which the electrodes are made. Several solutions can be used for these purposes.
Copper/Nickel
The main advantage of this option is low price and good efficiency. Here you can argue about the performance parameters, which are rarely distinguished by high performance, however, given the price segment in which the candles are sold, this is one of the best options. They will definitely last for 20,000 km, after which it is better to immediately change them to new spark plugs.
Platinum copies
The peculiarity of this electrode is that it is coated with precious metal. Thanks to this solution, the service life is increased and the quality characteristics are improved. When installing such a spark plug, a person may forget about replacing it for the next 50,000 kilometers. However, after the expiration date, the element will need to be replaced immediately.
Also, instead of platinum, any other coatings can be used. Not to say that technically the performance will become worse.
Iridium
The main feature of this product is its service life, which is 100 thousand kilometers. In addition, the product has the best technical performance and guarantees reliability to every driver. The only drawback is the high cost, which almost immediately discourages the desire to purchase such candles.
Cost and article number of original spark plugs for Lada Granta and their analogues
The article number of the consumables used differs depending on the power unit with which the machine is equipped. So the 8 valve Lada Granta has original spark plugs with article number A17DVRM.
Their cost ranges from 140 to 245 rubles. On vehicles with a 16-valve engine, branded AU17DVRM consumables are used. Their cost varies from 180 to 220 rubles. In retail sales, candles are found under catalog numbers:
- 21110370701000;
- 21110370701003;
- 21120370701000;
- 21120370701001.
On a Lada Granta car it is possible to install not only original spark plugs, but also their analogues. Many of them have better quality than branded products. The tables below show the optimal spark plugs that perform well during operation on the Lada Granta.
Table - The best alternatives to original spark plugs for the Lada Granta with an 8-valve engine.
| Manufacturer brand | Article number | Estimated cost, ruble |
| Denso | W20EXRU | 160-220 |
| Bosch | 242235663 | 140-200 |
| Champion | OE006T10 | 120-185 |
| NGK | BPR6EY | 120-150 |
| Brisk | LR15YC | 260-325 |
Table - Recommended alternatives to original spark plugs for the Lada Granta with a sixteen-valve power unit.
| Firm | Article number | Approximate cost, ruble |
| Brisk | DR15YC | 180-220 |
| Mazda | BP1318110A | 120-165 |
| Bosch | FR7DCU | 150-225 |
| Hyundai/Kia | 1882311101 | 120-215 |
| Nissan | 2240150Y05 | 100-195 |
There are no official recommendations from the automaker for installing iridium spark plugs on the Lada Granta. At the same time, drivers note that such consumables perform well during operation of the car. Iridium spark plugs have a longer service life and ignite the fuel-air mixture more optimally. As a result, the car becomes more economical or dynamic, and vibration during operation of the power unit is reduced.
Selection of components
Symptoms of incorrectly selected spark plugs:
- the engine does not work stably, troits or stalls;
- it is difficult to start a cold and hot engine;
- Misfire occurs, which causes the “Check Engine” warning light to light up on the instrument panel;
- loss of power;
- fuel consumption increases.
From the factory, “AU17DVRM” spark plugs will be installed on any VAZ 16-valve engine. They are produced in Saratov under license from BOSCH. There are also two complete analogues recommended by VAZ: DR15YC-1 (BRISK), as well as FR7DCU (BOSCH).
Products
In winter, you can switch to a lower heat rating - “AU14DVRM” candles are suitable. All analogues are presented in the table.
| Manufacturer | Standard candle | Option “for winter” |
| EZAZS (Saratov) | AU17DVRM | AU14DVRM |
| BERU | 14FR-7DUX | 14FR-8DUX |
| BOSCH | FR7DP, FR7DC(U) | FR8DP, FR8DC(U) |
| NGK | BCPR6ES-11 | BKR5ES-11 |
| DENSO | Q20PR-U11 | – |
| AC Delco | FR2LS | FR3LS |
The gap between the electrodes should be 1-1.15 mm.
For winter use, you can reduce the gap - let the value be from 1.0 to 1.05 mm. We have already written about this in more detail in the article: “choosing spark plugs for the Lada Granta.”
Catalog part numbers
If any part is lost during installation, it can be found from sellers by number:
- Bolt TORX E-8 – 21120-1005157-00;
- Ignition coil (module) – 21120-3705010-X (instead of X – numbers 11, 12 or 13);
- Rubber support – 21120-1008658-00 or 01.
Coil selection:
- 11 – DYNATEC (high quality and many fakes);
- 12 – SOATE;
- 13 – NPO “Sever”.
We hope no questions arise here.
By the way, all 16-valve Lada Granta engines bend the valves when the timing belt breaks!
If malfunctions in the VAZ-2190 begin to manifest themselves, associated with poor engine starting or unstable operation, then the probable cause of these unpleasant moments may be the fact of wear of the spark plugs. This factor is especially clearly manifested on 8-valve Lada Granta units. To save yourself from the risk of stopping on the road, you need to regularly check the functioning of the ignition system. Many car owners are interested in the question, which spark plugs are better?
Recommendations for replacement intervals
There are no strict deadlines for changing spark plugs on a Lada Granta. The reason for this is the significant dependence of the spark plug life on external factors, for example, fuel quality and driving style. Officially, installation of new spark plugs is required every 30 thousand km.
In domestic conditions, it is advisable to reduce the replacement interval to 15 thousand km.
During operation, unscheduled replacement of spark plugs may be required. It is usually caused by the following factors:
- there is a long trip ahead;
- the gap cannot be adjusted;
- there is heavy carbon deposits on the electrodes, which cannot be removed by all available means;
- the fuel system and engine were flushed;
- the car was filled with low-grade gasoline;
- The spark plug has damage, which is shown in the image below.
When to clean
But replacement will not be required in all cases; some problems can be solved by simply cleaning the element. This should be done especially for those who detect a large amount of soot. In addition, the color of the coating indicates certain engine problems. Often, it is by the shade of soot that experienced specialists determine the cause of the breakdown. For example:
- A brown coating indicates that there has been slight wear on the electrodes. There is nothing wrong with this, because the spark plug and motor are in completely good condition.
- Black tint, velvety structure, a small amount of soot is present. The appearance of this color can be caused by two reasons: late ignition or problems with the air-fuel mixture. To make sure there are no serious problems, you should check the air filter and DTOZH. This will help to accurately determine what caused the formation of such a shade.
- An oily coating often appears due to lubricant entering the combustion chamber. The reason for the penetration of this substance is the wear of caps, valve bushings, etc. If you find a problem, you should fix it immediately to avoid any trouble.
- Soot of a reddish hue. This color indicates that the exhaust gas converter is broken. But everything will not necessarily be exactly like this, because the formation of reddish soot is often associated with the presence of anti-knock additives contained in gasoline.
- Soot is white. There may be two reasons for the formation of such a deposit - the person used low-quality fuel, or the ignition parameters were set incorrectly.
- The last shade is ashen. Most experts are inclined to believe that such deposits appear due to problems in the valve stem seals.
Black, brown and white carbon deposits will not cause any problems for the user; all you need to do is clean the elements and install them in their original place. But if the driver discovers an oily or reddish coating, this element should definitely be changed. The same applies to the last point, but if you don’t have the necessary magazine at hand, you can temporarily ride on old ones, but before that you need to clean them.
Tools required to replace spark plugs
To replace spark plugs, you need the tools shown in the table below.
Table - Tools for replacing spark plugs on a Lada Granta.
| List of tools | Notes |
| Candle key | With extension for sixteen valve engine |
| Head | E-8 to remove the individual ignition coil on a 16 valve engine |
| Torque wrench | To control the tightening of the spark plug to prevent damage to the threads of the mounting hole in the cylinder head |
| Vorotok | With ratchet |
| Extension | For ratchet |
| Dielectric gel | To reduce the risk of electrical breakdown of spark plugs and ignition coils |
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.
Description of replacing spark plugs with an 8-valve power unit
Replacing spark plugs for a Lada Granta with an 8-valve engine is presented below.
- Remove the tip of the high-voltage wire.
- Unscrew the spark plug.
- Screw on the new consumable.
Let's sum it up
Timely routine maintenance of the Lada Granta ignition system is the main guarantee of uninterrupted engine functionality. As you can see, replacing spark plugs is not that difficult. This measure will also reduce fuel costs.
Sources used:
- https://xn--80aal0a.xn--80asehdb/do-my-self/repair/repair-lada-vesta/712-kakie-svechi-zazhiganiya-na-lada-priora-granta-kalina-luchshe-kupit. html
- https://markakachestva.ru/rating-of/5338-luchshie-svechi-zazhiganija-dlja-lady-granta-rejting.html
- https://obzor-expert.com/kakie-svechi-zazhiganiya-luchshe-dlya-lada-granta-8-klapannaya-top-9-luchshih-svechej-zazhiganiya-vidy-i-pravila-zameny-zapchastej/
- https://carfrance.ru/menyaem-svechi-na-lada-granta-s-16-klapannym-dvigatelem/
- https://vaz-lada-granta.com/dvigatel-korobka/svechi.html
Replacing spark plugs on a sixteen-valve Lada Granta
Instructions for replacing spark plugs on a Granta with a 16-valve engine.
- Pull the top to release the decorative panel.
- Unscrew the bolt that secures the coil.
- Unscrew the spark plug and replace it.
Source
About aspects of the ignition system
In the engine compartment of the Lada Grant there is a 1.6-liter 4-cylinder engine, the design feature of which is the presence of both an 8-valve cylinder head and its 16-valve version. Depending on the type of valve mechanism used, the power indicator is equal to 82 hp. With. or to 106 “forces” respectively.
The control module is designed to monitor the correct functionality of the ignition circuit. This device receives certain impulses sent by sensors and processes them. The ECU then generates a voltage that is subsequently addressed to the coils.
For different valve mechanisms, the coils have their own design and location configuration. So in 16-valve variations of LADA Granta engines, these components are located in separate wells, the number of which is “4” (according to the number of cylinders).
For 8-valve units, the manufacturer used a single-casing design, which is essentially a step-up transformer. This device is equipped with a single primary winding with a middle location of its output and two secondary ones, whose output contacts are connected to spark plug tips. The ignition circuit of the Lada Granta, which has an 8-valve timing unit, has a so-called “idle” spark method. The essence of the declared technology lies in the synchronous generation of a spark in two cylinders at once. In the first of them (conditionally) it ignites the mixture and is considered “working”, and in the other it “skips in idle mode”.
