For the stable operation of the power unit, it is customary to install Japanese NGK VAZ 2106 candles on classic Zhiguli models, as well as high-quality products from other foreign manufacturers. "Native" parts of the A17 series, as a rule, are unreliable in operation and have a short service life. But to install imported spark plugs, you need to know which ones are suitable for the "six" in terms of parameters.
Reasons for replacing elements
The spark plug in any car must function in difficult conditions, solving the following tasks:
- timely ignite the air-fuel mixture compressed in the cylinder;
- provide an even and powerful spark discharge on their contacts;
- sparking should not deteriorate in any mode of engine operation.
For ignorant motorists, checking spark plugs comes down to a “spark” test. From this, an erroneous statement arises: if a spark jumps between the contacts when connected to a source, then the element is fully functional.
But the conditions inside the combustion chamber are different from normal atmospheric conditions, because there is high pressure (over 10 bar), and instead of air, fuel plus high temperature. Often a candle that gives a confident spark discharge in air works with gaps in the cylinder or does not spark at all.
It is possible to determine the operability of the elements only on a stand with a high voltage supply and pressure in the chamber. Such a check is not available to most ordinary motorists, the only way out is to replace the VAZ 2106 spark plugs on time by purchasing high-quality products from well-known manufacturers. These include eminent brands NGK, Bosch, Beru and Brisk.
Russian candles of the A17 series cannot boast of a long service life and fail after 15-20 thousand kilometers, as evidenced by the following signs:
- Engine "troit". Moreover, sometimes it is impossible to understand which of the cylinders is failing, since all 4 candles make misfires.
- The car does not start “cold” well and is unstable until it warms up.
- With high fuel consumption, a drop in power is observed.
- A particularly neglected case is when the oil pressure lamp lights up. This is the result of a long drive on unusable candles, when the fuel that does not burn in the cylinders flows into the crankcase and dilutes the oil, which causes its pressure to drop.
Every motorist should remember that in the event of a malfunction of the power unit, the first step is to unscrew the candles and visually check their condition.
The color and thickness of soot on the contacts can tell a lot to an understanding motorist:
- black soot on the contacts indicates that the fuel in the chamber does not burn out completely, perhaps the candle is out of order;
- white coating on the electrodes indicates a poor air-fuel mixture, the candle is in good order;
- red soot indicates that there are harmful additives in the fuel, the candle is most likely in good order;
- thick “fluffy” soot is the result of the combustion of oil entering the chamber through seals or a piston group.
The normal color of the electrodes is all shades of brown with a minimum thickness of plaque.
What parts to choose?
When choosing spark plugs for a VAZ 2106 car, you must be guided by the numerical value indicated on the marking. It denotes the incandescent number of the element, which characterizes the ability of the candle to remove heat and self-clean from carbon deposits during operation. According to the Russian classification, elements are divided into the following groups:
- A heat number from 11 to 16 is a "hot" candle. They are designed for engines with a low compression ratio and low power.
- The same, from 17 to 19. The most widely used candles, including those on VAZ 2101-07 cars.
- The same, from 20 to 26 - "cold" candles, installed on powerful engines with a high compression ratio and temperature in the combustion chamber.
If you put too “hot” or “cold” candles on a VAZ 2106 car, then the engine will not be able to function in normal mode with maximum efficiency. The letter indices on the label indicate less important parameters, but they must also be taken into account. For example, a product with the designation A17DV is suitable for engines where a carburetor and an ignition system with mechanical contacts are installed, and A17DVRM is suitable for power units with an injector.
The trouble is that the classification of imported candles differs from Russian ones, and there is no single measurement system, each manufacturer has its own. Therefore, before buying reliable products from the Japanese company NGK or another brand for the VAZ 2106, it is recommended to study the table.
According to the table, you can select elements from some foreign brands for classic Zhiguli models with different fuel supply methods and types of sparking systems.
Before proceeding with the replacement of VAZ 2106 candles, you need to make sure that the gap between the electrodes in new parts is 0.7-0.8 mm for cam ignition systems and 0.8-0.9 mm for electronic ones. The gap is measured with a flat probe, in candles with several side electrodes - round.
The replacement algorithm is as follows:
- Switch off the ignition and remove the high-voltage wires from the candles, holding them by the tips.
- Unscrew the old parts and clean the seats with a brush.
- Screw in new spark plugs, tighten them with medium force.
- Connect the wires and start the engine.
When connecting high-voltage wires, it is important not to confuse them, so you need to be guided by the markings on the distributor cap.
An article about spark plugs for a car engine - varieties, selection criteria. At the end of the article - an interesting video on how to clean candles from soot.
The content of the article:
Engine operation largely depends on spark plugs, and the performance of the latter depends on the manufacturer and manufacturing technology. The spark plug rating is most often headed by recognized market leaders like Bosch, Denso, Beru and some others. These companies supply their products to automakers, so they strictly monitor the quality and adherence to technology.
Spark plugs - varieties and features
When choosing, the material from which the electrodes are made, as well as their number, is of primary importance.
According to the number of spark generators, spark plugs are divided into two-electrode and multi-electrode (plus plasma-prechamber, which is a novelty on the market).
Two-electrode
They have a main (central) and side electrodes. Candles of this type are a classic variety. When starting, a spark is formed between the electrodes, which ignites the fuel mixture.
Multielectrode
In addition to the central one, they have two or more side spark generators. The principle of operation is the same, but the design allows you to stabilize the formation of a spark and the operation of the propulsion system.
Plasma prechamber
Such candles appeared on the auto parts market around 2000 and still provoke discussions. Neither experts nor ordinary motorists have come to a consensus on what this new product is - either the next step towards increasing efficiency, or a futile attempt at improvement.
Pre-chamber candles differ from traditional ones in that the role of the side electrode is performed by the body of the product, equipped with a special heat-resistant nozzle. It is with its help that a spark is formed.
But despite such an improvement, the best spark plugs, according to consumer ratings and reviews, are still traditional electrode ones.
Classification by electrode material
copper/nickel
The main characteristics of spark plugs are quality and budget. Of course, in terms of operating parameters, the products are far from those that will be discussed below, but for their price segment they have decent readings. On average, a copper-electrode spark plug is enough for 20 - 30 thousand kilometers, after which replacement is required.
Platinum (sometimes made from other precious metals)
The electrodes of the products have a platinum coating, due to which their service life is increased and the quality is improved. Such a candle is designed for a run of 50 thousand km.
iridium
The resource is up to 100 thousand km, and the quality indicators are many times better than the previous options. But the cost of the product is corresponding.
Rating of the best spark plugs
The market leaders have been determined for a long time. The results of tests, consumer votes, expert opinions sometimes differ, but the top positions in the ratings are almost always occupied by the same brands.
1. Bosch
The company's products can be described in two words - German quality. It is not for nothing that the brand is confidently leading in all top selections of spark plugs. Bosch products are equipped with cars such as Fiat, Audi, Toyota, Mitsubishi and others. The company provides a considerable choice, but some models are especially popular.
Which spark plugs are better and what are their features?
Model Bosch WR7DP
Number of electrodes: 2.
Coating material: platinum.
Pros:
- stable operation even when the battery is low;
- high level of environmental friendliness,
- long service life (about 60 thousand kilometers);
- good performance when working with HBO;
- versatility (the model is compatible with most cars, including domestic production).
- high price.
Model Bosch FR7DC+
Coating material: yttrium.
Pros:
- the resource is higher than other budget options;
- low cost;
- increased resistance to spark damage.
- sensitivity to low quality fuel.
2 Denso
Another undoubted market leader, focusing on the latest technology.
Model Denso PK20PR-P8
Number of electrodes: 2.
Coating material: platinum.
Pros:
- low cost in comparison with other platinum products;
- long service life;
- universality (candles are suitable for most cars, including models that have been discontinued);
- at high speeds, an effective self-cleaning process occurs;
- construction elements are of high quality.
- intensive coating of soot during idling;
- not the best option for installation on a car with LPG.
Model Denso K20TXR
Number of electrodes: more than 2.
Coating material: nickel.
Pros:
- stable operation;
- resistance to spark damage;
- perfect value for money;
- increased resistance to oxidation.
- not the best option for installation on a car running on gas.
3.NGK
The global sales volume exceeds 450 million and continues to grow. The company supplies its products to car factories such as Ferrari, Volvo, BMW, Volkswagen, etc.
Model NGK BKR6EIX
Number of electrodes: 2.
Coating material: iridium.
Pros:
- long service life (up to 50 thousand kilometers or more);
- stable operation even when the battery is low;
- increased resistance of the central electrode insulator to damage.
- high price;
- increased sensitivity to fuel quality.
Model NGK BUR6ET
Number of electrodes: more than 2.
Coating material: nickel.
Pros:
- resistance to corrosion damage;
- adequate cost;
- stable operation at both high and low speeds;
- profitability;
- a good percentage of power increase compared to analogues;
- low quality fuel resistance.
- low environmental performance.
4 Brisk
The brand has several highly specialized lines. For example, the Classic range is designed to be compatible with carbureted engines, while the Silver is ideal for gas-powered vehicles.
Model Brisk Premium LOR15LGS
Number of electrodes: 5.
Pros:
- long service life (from 50 thousand kilometers);
- profitability;
- stable functioning in any conditions thanks to four side electrodes;
- high power rating;
- resistance to low quality fuels.
- high cost (this is one of the most expensive spark plugs).
5. Champion
Completes such car brands as Suzuki, Jaguar, Alfa Romeo.
Model Champion RN9YCC4
Number of electrodes: 2.
The electrodes have a copper core.
Pros:
- more stable operation in comparison with analogues;
- a good indicator of efficiency when working at high speeds,
- high level of environmental friendliness.
- overpriced;
- unstable operation at low speeds;
- compatible with a limited number of vehicles.
6. Beru
The company's products are distinguished by quality and good performance, although in some points they lose to the "masters".
Model Beru Ultra-X79
Number of electrodes: 4.
Pros:
- The optimum ratio of price and quality;
- high level of environmental friendliness;
- stable operation in cars both on gasoline fuel and on gas;
- high rate of environmental friendliness;
- stable spark even with strong soot.
- low percentage of power increase with the throttle open.
Which spark plugs are best for a gas engine
The peculiarity of gas is that its combustion temperature is slightly higher. This provokes intensive formation of carbon deposits and the appearance of oxides on the electrodes. Therefore, for gas-powered vehicles, it is recommended to install products with platinum or iridium spark generators.
When used on machines with LPG, good results were shown by:
- Denso Iridium IW20;
- NGK LPG Laser LineN2;
- Bosch Platinum WR7DP.
Conclusion
The most important thing when choosing spark plugs for the engine is not to get a fake. Handicraft enterprises throw on the market a huge amount of counterfeit products of the lowest quality. Therefore, when buying candles, you should pay attention to the reputation of the outlet, as well as check the part and packaging for belonging to the original.
Video on how to clean spark plugs from soot:
Sometimes motorists do not pay much attention when choosing spark plugs, but in vain. After all, they are the most important component of the entire ignition system, and the performance of the engine depends on the quality of timely sparking. The main characteristics that you need to pay attention to when buying candles are glow number, spark gap, self-cleaning ability, service life, thermal characteristics, number of ground electrodes and operating temperature. Don't be intimidated by a large number of characteristics, with a detailed study of them, choosing spark plugs will not be difficult.
When choosing candles, the first thing you should pay attention to is the glow number. This parameter is conditional and is selected specifically for a particular engine. This number indicates the value of the pressure in the cylinder at which glow ignition occurs. The use of candles with a slightly higher glow value is allowed, but the use of a lower value is strictly prohibited. Another conditional characteristic cannot be quantified - the ability to self-purify. All manufacturers promise high self-cleaning, but this can only be verified in practice. A good candle should not be covered with soot when heated to operating temperature.
Keep in mind that the service life of candles largely depends not only on their design, but also on the health of the engine and power systems. Modern candles with the right choice, installation and operation should work up to 30 thousand kilometers.
Spark plugs are an essential attribute of any car with a gasoline engine. The Russian winter is a real test for these details. It is during this period of the year that candles fail more and more and drivers begin to think more carefully about which candles are better for a VAZ. It is on this topic that we will talk in more detail today.
Today, candles on the VAZ 2107, which car owners usually put on, are made in Europe and Japan. Unfortunately, drivers have little confidence in domestic candle manufacturers. In this review, we will describe several widely available candles on our market.
Overview of candles for VAZ
- Three-electrode Japanese candles NGK BUR6ET are a very common option. Bench tests show good stability of the engine and a good increase in power - 4.4% (all given parameters are indicated in comparison with the "native" VAZ spark plugs EZ A17DVRM). They are also economical in terms of gasoline consumption (3.9%). Here are the best candles for the VAZ2114.
- French candles Beru Ultra-X 79 (4 electrodes) are the least toxic of all the candles that have passed bench tests and are described in this article. In addition, these plugs showed the highest fuel economy (4.2%). However, they are somewhat inferior to Japanese counterparts in terms of stability and power increase (only 3.7%).
- Czech three-electrode spark plugs Brisk Extra turned out to be the most stable. In addition to stability, they provided a serious increase in engine power - by as much as 4.8%. However, their serious disadvantage was a slight economy of gasoline. When deciding which candles are best for Kalina, many stop at this option due to its reliability.
- The best indicator of increase in power (> 6%) among the tested samples of spark plugs is single-electrode Finwhale. At the same time, they differ slightly in stability from Brisk Extra and are compared in this parameter with Japanese NGK candles. At the same time, their efficiency and toxicity indicators are even worse than those of Brisk Extra.
- German Champion spark plugs combined efficiency (4.2%, like Beru Ultra-X 79) and a good increase in power (5.6%). They have the same average resistance as Beru Ultra-X 79, yielding to all other samples.
When deciding which spark plugs to choose, you need to consider what you want from them. If reliability is the main thing for you, then your option is Brisk Premium, Finwhale or NGK BUR6ET. If you care about fuel economy, then take Champion, Beru Ultra-X 79 or NGK. Maximum performance will be provided by Finwhale candles (at the same time economy will decrease) and Champion (power will be slightly lower, but economy will be much higher). In general, the best candles are original, that is, genuine. Unfortunately, today it is possible, without knowing about it, to buy a lot of fakes, which sometimes make drivers disappointed in the products of good companies.
In addition, when servicing the VAZ 2110, which candles are better, the technician will tell you, because this is not such a serious problem as the frequency with which you need to change them. This should be done every 15-20 thousand km.
In the ignition circuit of the VAZ 2114, candles play a central role. In fact, it is the spark plugs that carry out the control signal that comes from the ignition key when it is turned to the start position. Having received a signal of 24 kV, the candles generate a spark and ignite the fuel injected into the combustion chamber. Therefore, vehicle drivers pay a lot of attention to them. In order to choose the right SZ, you need to know the features of their design.
Spark plugs on the VAZ 2114 are structurally no different from the SZ used in the ignition systems of other cars. The main elements of this device are:
- the body is made of metal, on the outside it has a hexagonal head for a candle key and a threaded part for screwing into the cylinder head housing, this part perceives 67 percent of the heat generated when the candle fires and gives off 91 percent of this heat to the block head housing;
- an insulator made of corundum ceramic with the addition of aluminum oxide, as well as oxides of other rare metals. It is inserted into a metal case;
- thermal cone, often referred to as the thermal cone skirt. In fact, this is the lower part of the insulator, it perceives 21 percent of the heat released at the time of sparking;
- a plug head is attached in the upper part of the insulator, inside it is a contact rod associated with the head, and in the lower part there is a central electrode;
- on the lower part of the candle body there is a side electrode, which is located above the protruding part of the central electrode, forming a gap for the formation of a spark;
- the thrust part of the housing is flat; for better tightness, a sealing washer is placed on it when installed;
- to form the strength and tightness of the joints inside the structure, there are ring seals and a heat-conducting glass sealant;
- to combat radio interference arising from sparking, an interference suppression resistor can be installed between the contact head and the central electrode.
All the constituent elements of the candle on the VAZ 2114 play an important role, but special attention is paid to the central electrode. It must have properties such as heat resistance, high thermal conductivity, ductility and high corrosion erosion resistance. To do this, it is usually made from various nickel alloys. However, in recent years, in order to improve the efficiency of the candle and obtain any unique properties during its operation, this electrode began to be produced from metals such as copper, iridium, palladium, as well as with platinum fusion and silver or gold plating.
How to choose spark plugs for VAZ 2114
The issue of choosing SZ if it is necessary to replace them must be taken seriously. Fuel consumption and engine power depend on how efficiently they work. When deciding which spark plugs are better for the VAZ 2114, the driver must be aware of which of the tasks they should perform. Tests carried out by specialists show that properly selected spark plugs for a particular engine can not only improve its performance, but also extend its life. It is not for nothing that special spark plugs with gold-plated copper electrodes are made for the forced engines of sports cars.
- The instruction manual for the VAZ 2114 indicates how much to change the spark plugs on the VAZ 2114. This is 30 thousand kilometers of the car. Of course, good, real factory candles can last 50 and 70 thousand kilometers. But this does not mean that if there are no problems with the launch and during the movement, then the candles can not be changed. In fact, as the electrodes wear out, the characteristics of the internal combustion engine change, and with careful monitoring, this is easy to detect by the changed indicators in fuel consumption.
- Specialists and experienced drivers strongly recommend changing spark plugs at least every 20,000 km, and in winter, after 10,000 km. Wherein it is necessary to constantly monitor the operation of the SZ and the gap between the electrodes. On the unscrewed candle, its condition will immediately be visible by the color of soot on the electrodes. It is also required to check the dryness of the threaded connection. The presence of fuel or oil on it indicates a lack of tightness in the system.
- The choice of SZ in auto parts stores today is quite large, and in order to decide which candles to put on the VAZ 2114, you need to study the technical characteristics of all the models offered. On forums and in automotive magazines, spark plugs with the brands NGK, Finwhale, Champion, Brisk Premium, Bosch Platin are recommended for the VAZ 2114. For example, when passing test tests, these kits, when compared with the Russian A17DMRV from Engels, showed 5-6% better power and 3.5-4.5% better fuel consumption. Despite the fact that foreign candle sets are much more expensive than domestic ones, they pay for themselves in half a year by reducing fuel consumption.
- The advantages of imported candles are best seen when they are checked on a special engine stand with photographing the sparking process. A simple single-electrode candle with a nickel electrode gives an intermittent multi-colored, randomly flying in different directions, spark. Candles from imported sets, when sparking, create a continuous cone of white fire.
- By the color of the spark, auto electricians determine the efficiency of a candle kit. If the color is red, then the spark is weak intermittent. Blue or cyan means a more intense spark. White fire means a spark that is intense and steady. It is this kind of fire that gives intense ignition of the fuel-air mixture during injection. This means better combustion, higher engine power and lower fuel consumption.
- The best spark is given by candles with the thinnest electrodes, 0.4-0.6 mm thick. Such electrodes are made of iridium, palladium or alloys with platinum and gold. Significantly improves the "spark" by sputtering silver, gold or platinum on the central and side electrodes. The thickness of the A17 spark plug electrode from Engels is 2.5 mm. Therefore, it cannot compete with expensive imported candle sets.
It is easiest to identify a fake at the selling price. As a rule, such "products" are sold for half the real cost of the "original". This should immediately alert the buyer. You should also check the candle itself before installation. On fakes, you can often find a rocking plug head.
When choosing candles for the VAZ 2114, it is necessary that quite often counterfeit products are found in our distribution network, that is, “home-made products” under well-known and expensive brands. If you accidentally install such candles on a car, then it’s good if you calmly drive one thousand kilometers on it.
