Engine modern car - This is a complex unit in which there are different components and nodes. Its good work depends on many factors, while the spark plugs play here not the last role. That is why it is important to know what parameters should be guided and what to take into account to correctly pick up this item for the car and eliminate errors.
The main characteristics of the spark plugs
The modern spare parts market does not have a lack of ignition candles. Lots of sentences, they differ in price, manufacturer and basic characteristics. 
It is easiest to buy the same models that put the manufacturer, but they can not always be available from the seller. Then the problem appears - how to choose an analogue.
Did you know? The patent for the spark plug was obtained on January 7, 1902 by Bosch. Since then, the principle of its action and the main design did not change, only performance improved.
Spark plugs supply many manufacturers. The most famous are:
- Germany: Bosch, Beru;
- USA: Champion, AUTOLITE, ACDELCO;
- Japan: NGK, DENSO, HKT;
- Korea: Besfits;
- Italy: Magneti Marelli;
- United Kingdom: Goodwill;
- Czech Republic: Brisk;
- Switzerland: FINWHALE;
- France: Valeo, Eyquem.
To properly choose the candles, you need to be guided by such basic criteria:
- overall and connecting dimensions or type of housing;
- the parameter of the gallinal number;
- spark gap;
- thermal characteristics;
- number of electrodes;
- material execution.
dimensions Candles implies:
- length;
- diameter;
- mounting step for mounting with the engine;
- a wrench size, with which the installation is made.
Common key sizes - 16 mm and 21 mm. Standard thread diameter - 14 mm, but there are models with a value of this parameter 10-12 mm. By the length of the thread, the candles are divided into short (12 mm), medium (19-20 mm) and long (25 mm).
Important! Carefully select the ignition candle in size. Too short will not enter the jack of the engine and will be far from the combustion chamber, and too long will speak out of it, it will fall under the piston blow and disabling the motor.
This is one of the key characteristics that indicates the thermal properties of the spark plug (on its temperature mode). The parameter is expressed in a numerical value, and the higher this number, the better the performance indicators for high-temperature working conditions. +400 ... + 850 ° C is the optimal range of operating temperatures.
If the indicator is below, then self-cleaning and the soot will not be actively enjoyed, and if the limit exceeds, it will take a valet ignition - ignition from a split surface that is fraught with the detonation of the engine, extinguishing the pistons and valves. 
The value of the gallinal number of candles is classified as:
- hot - 11-14, used for low compression engines designed for low-octane fuels and a quiet ride;
- middle - 17-19, suitable for the overwhelming number of modern cars;
- cold- 20 and higher, designed for high-compression engines that use high-octane fuel, i.e. for tunned, premium class and racing cars.
- for carburetor - 0.7-0.85 mm;
- for injectors - 1.0-1.13 mm.
Important! If the spark gap is more necessary, the ignition pass and an increase in fuel consumption are detected in the car. In case of insufficient spark gap, the fuel is worse and the likelihood of the candle is increasing.
Candle electrodes also affect their classification and motorist selection. They are calibrated by such groups:
- single-electrode with a single central electrode;
- multielectrode, where, besides the central, present in the design several side (3-4 pieces), such products have a greater resource.
Best spark discharge power and long term Services provide platinum and iridium copies. The cost of them is higher than standard models, but the advantages of working with a cold start of the engine, high conductivity, fuel economy by 10% and several times more than a larger service causes their growing popularity and the need for engines of complex structures, such as GTI, D4 and others. Did you know? The most expensive electrodes are put in candles for racing cars, the composition of their alloys includes palladium and gold.
Other features when selecting spark plugs
The complexity of the selection of spark plugs for concrete brand The car is due to the lack of a single labeling on this spare part. Each manufacturer labels the item as it seems necessary. Moreover, even within the same country there is no identical alphanumeric designation. 
However, the basic conditions of marking are observed all:
- mounting dimensions (diameter and length of the threaded part);
- value of a gallinal number;
- the presence of a built-in resistor;
- the position of the thermal cone.
| Options | NGK. | Bosch. | Brisk. | Russian ignition candles |
| Thread Length | A - 18 mm b - 14 mm C - 10 mm d - 12 mm E - 8 mm G - 12 mm j - 12 mm AB - 18 mm BC - 14 mm BK - 14 mm DC - 12 mm | A - 12.7 mm, normal position of the spark in - 12.7 mm, extended position C - 19 mm, normal position D - 19 mm, extended position DT - 19 mm, extended spark position and three weight electrodes L - 19 mm, far-extended spark | A - 19 mm b - 19 mm d - 19 mm E - 26.5 mm F - 11.2 mm G - 17.5 mm H - 11.2 mm J - 9.5 mm K - 9.5 mm L - 19 mm n - 12.7 mm p - 9.5 mm R - 25 mm U - 7.8 mm Na - 12.7 mm T - 12.7 mm M - 26.5 mm S - 9.5 mm C - 26.5 mm | No letters - 12 mm |
| Metal body size | F - 14x19 g - 14x19 j - 12x19 k - 12x19 m - 12x19 T - 10x19 | W - M14X1.25 F - M14X1.5 with a flat sealing seat and SW16 M - M18 carving with a flat seal seat and SW25 H - M14X1.25 with a conical seal seat and SW16 D - M18X1.5 with a conical seal seat and SW21 | A - M10 X1 B - M12X1.25 D - M14X1.25 E - M18X1.25 F - M18X1,5 G - M14X1.25 H - M14x1.25 J - M14x1.25 K - M14x1.25 L - M14x1.25 N - M14x1.25 P - M14x1.25 R - M14x1.25 U - M14x1.25 Na - M10x1 T - M10x1 M - M12x1.25 S - M10x1 C - M10x1 | A - M14X1,25 |
| Material of electrodes | I - Central Electrode from Iridia P - Central Platinum Electrode Z - enlarged gap PZ - Platinum central electrode and increased gap IZ - central electrode from iridium and increased gap V - Central Gold Palladium Electrode W - central tungsten electrode VX - Central Platinum Electrode and Special Side Electrode | C - Nickel and Copper Alloy S - Silver Medium Electrode P - Platinum Middle Electrode O - Standard Candle with Enhanced Middle Electrode | C copper core E - Central and side electrodes doped with yttrium with copper core S - central silver electrode P - central electrode with platinum contact PP - Central and Side Electrodes from Platinum PY - a central electrode with platinum contact, the side alloyed by yttrium IR - Iridiyevo contact on the central electrode | Without letters - Standard Core M - Copper Core |
| Extra options | R - with a resistor C - lateral electrode (earth) with low angle F - cone saddle G - Central Electrode of Thin Nickel Alloy GV - Central Electrode Special Design of Gold Palladium J - 2 extended side (earth) electrode K - 2 side electrodes M - 2 side electrodes for rotary engine Mazda or insulator length 18.5 mm T - 3 side electrodes Q - 4 side electrodes U - semi-surface discharge X - Clearance to increase productivity Y is a central electrode with a V-shaped | R - Candle has resistance to suppressing radio | R - protective resistance X - protective resistance from an electrode fug Y - made of insulator L - Especially made insulator D - an outstanding insulator and 2 side electrodes T - made of insulator and 3 side electrodes G - not an extended electrode and a solid electrode around the perimeter LG is a particularly rendered insulator and a solid electrode around the perimeter. Z - 2 auxiliary electrodes on an insulator and solid after perimeter TX - 1 auxiliary electrode on an insulator and 3 side LT - a special insulator and 3 side electrodes | K - reference surface conical In - The thermal cone of the insulator protrudes from the body inside the combustion chamber |
By brand car
The choice of spark plugs, like the other parts of the car, should begin with the technical characteristics on the car. They can be found in the technical documentation of the car, where the manufacturer always indicates the components and provides options for their replacement. On the other hand, brands that produce candles also design them not for a single series, but try to perform a model unified for different marks machines. 
In addition, new proposals appear on the market, but they will not be in the list of recommended in your technical manual. If for some reason you do not suit those candles that are set now, or they have already worked out their resource and you need to replace them, you can familiarize yourself with the available range, if you realize the search on the car brand. For this, you will need additional information:
- the model of car;
- type and volume of the engine;
- year of issue;
- modification (if any).
Search can be carried out:
- according to the catalogs of automakers;
- on catalogs of candle manufacturers;
- online in specialized resources;
- online on the sites of large online stores.
At the factory number of the car
The search for spare parts at the factory number is necessary only when the complete identification of the characteristics of the car is needed. Such a need may occur if the modification of the machine is very rare and the manufacturer has released its limited parties. For relatively new models, this option is also possible, especially if the car is not bought in the auto show. So, new owner It can reliably make sure that under the hood it has candles that correspond to the declared characteristics of a particular car model. 
Selection software applied to all autobrades. VIN search methodology is quite similar to requests for search engine in the Internet. In the individual car code, technical data are encrypted, which are closely intertwined with spare parts specifications. If the auto owner does not know or not confident in the technical parameters of the machine, the required candle can be found with exceptional accuracy.
Search by wine code can be carried out in several ways:
- in specialized services for the search for spare parts (the factory number of the machine is set);
- on search online resources in online stores;
- according to the catalog or search in specialized service centers.
An unprotected approach to the acquisition of spark plugs can lead to a serious vehicle breakdown. 
Here are some selection rules that will protect you from errors:
- The technical characteristics of your car is chief Criteria choice. According to the car, the VIN-code, the type and volume of the engine determine those products that will be relevant.
- Do not seek to buy expensive platinum or iridium candles if you are a driver budget car With a carburetor engine or make only trips around the city for short distances. These models are promising on other types of cars, so you will not reveal our advantages. Choose something secondary price / quality.
- Follow the manufacturer's recommendations on the spark plug interval. If you need to replace every 40 thousand km, then buy a model with a run resource of 100 thousand km does not make sense.
- Always replace all the set at the same time, otherwise you will ensure the engine starting after a short period of time.
- Products famous brands It must be preferable to the goods of unfamiliar manufacturers.
- Make sure your car model is mentioned on the product packaging.
- Beware of fakes. Before purchasing new candles, inspect the packaging for integrity, do not hesitate to open it with the seller and check the clear print mark of the manufacturer, the quality of the thread, the alignment of the electrodes, the integrity and the homogeneity of the ceramic insulator coating (2 halves - fake). The case must be matte.
- Use the instrument to check if it is in trading point. Test is not work in real conditionsBut a frank marriage will reveal.
Top 10 best spark plugs
Try to pick up the spark plugs based on the recommendations of car manufacturers or their specialized service centers. In this case, you can be sure that optimal technical parameters and the best offer from manufacturers will be selected for your machine, which will meet your expectations from purchase. As for the candles, the mass production of products with various sizes and other characteristics is adjusted, so that it is possible to choose the appropriate option to almost any car and other TC types. For the selection, you can use the original printed or digital catalogue NGK, the candles online at the same time choose is not much difficult. The main thing is necessary to have a stock of certain knowledge.
You can also use Internet services that implement a more simplified automatic selection of spark plugs on the car brand (NGK candles and products of other manufacturers in this case are usually selected by the manufacturer of the vehicle, model and VIN-code of the car).
Note that in some cases, the selection of candles only on the model of the car may not be quite accurate. For this reason, it is extremely desirable to know before buying a NGK articula candle, and what means the marking of the NGK candles. In this article, we will look at what types of candles NGK are and what decoding the labeling of the NGK candles. We also talk about what the average lifetime of the candle ignition NGK. And we will touch on the question of how the feeding of the NGK candles is determined.
Read in this article
NGK Ignition Candle Characteristics: Differences by type
Let's start with the fact that each manufacturer of candles offers the consumer unique features that manage to achieve in the production process. NGK is no exception. Although the device of products of this kind has long been well thought out and actually completed solution (does not imply fundamental differences), manufacturers regularly improve various characteristics.
Such improvements are becoming possible by making minor improvements to the overall design, as well as the result of using new materials. Combined with a high-tech manufacturing process and subsequent test checks, the percentage of marriage in each individual batch is significantly reduced, the NGK spark plug resource is increasing from each series.
As for the types of candles themselves, the company offers 7 types of products. Each type has various unique characteristics and features. For example, NGK spark plugs from the V-Line line are a popular and affordable solution. Such products are capable of ensuring flat work in the economy Even in the conditions of a strongly depleted working mixture.
Stable formation of sparks allows you to achieve timely and full ignition of fuel charge in the combustion chamber. At the same time, maximum reliability is achieved at different modes of motor operation (ease of launch, riding on low revolutions, maximum loads, transitional mode, etc.).
- Simple single-electrode candles NGK are distinguished by stability during operation due to a special V-shaped notch on the central electrode. This solution allows you to distribute the potentials closer to the peripheral area.
In this area, as a rule, the highest concentration of fuel vapor is noted. As a result, a powerful spark makes it possible to achieve efficient and fully inflammation of the charge throughout the entire life of the candle (about 30 thousand km.)
- Also among different types NGK candles are widely represented by options with multiple electrodes. Multielectrode candles Ignition are more modern decisionDifferent with increased reliability. Several side electrodes provide stable sparking even in the case when one of them fails.
In parallel, the quality of ignition is improved, the candle works steadily in different modes. By the number of side electrodes on the candle, they can be from 2 to 4. The elements are placed around the central electrode at an equal distance from each other.
The advantages of this type of product include less tendency to pollution, as well as a noticeable increase in service life (about 50 thousand km). Moreover, high quality has become a reason for individual developments. For example, threeelectrodes candles NLC We were designed specifically for the motors of the German car giant VAG.
- Special attention in the general catalog also deserve candles with a central electrode in the form of a cone and special attacks, which are made on the inner surface of the side electrode. These attacks are alloys based on rare-earth metals (platinum, iridium).
Such metals make it possible to significantly increase the resource of the candles (on average, up to 3 times compared to conventional one-electrode, as well as 30-40% compared with multi-electrode). Thanks to a long service life (about 80-100 thousand km) and the reliability of NGK enjoy the popular popularity among motorists.
Candlemark NGK: Marking
As already mentioned above, avoid errors and inaccuracies in the process of selection helps decryption of NGK candles. It is well known that the manufacturer implements products in the corporate packaging. As for marking, special codes can be detected on the case of each candle.
Such designations on the candlelight NGK significantly simplify the entire selection process. Knowledge of labeling allows you to accurately determine which option from the nomenclature of NGK products will be most suitable for the main parameters. Marking codes are displayed in the NGK directory, after which the selection is performed using printed tables, online services, etc. So, the issue of marking the ignition candles is optimally considered on ready-made examples.
As can be seen from the examples, the most important parameters can be considered the type of spark plug and physical dimensions, the features of the thread / candle, the indicator of the gauge number (the so-called "hot" and "cold" candles) and the size of the gap between the electrodes. Also one should not forget about The fact that additional characters can be added to the basic labeling, which indicates the individual features of a particular type of candles.
We add that for the selection of NGK spark plugs online by car optimally use the official NGK website. The site contains links to original catalogs covering the entire range of company products.
From this diversity you need to choose gas engine or . Then you need to enter the brand and model of the car, after which the table will be displayed in which all modifications and specifications DVS. Based on the table, a further accurate selection of candles is carried out.
Candles NGK: how to distinguish fake
As you know, widely fame and the reputation of a high-quality brand often makes such a manufacturer with an object of unfair competition, and also becomes a reason for the manufacture of a large number of low-grade fakes. As for the spark plugs, the percentage of non-original counterfeit products in this segment is very high, especially in the CIS markets.
A few years ago, such fakes were much easier to identify. The non-original product clearly indicated:
- low packaging quality;
- lack of protective holographic stickers;
- blurred / curves fonts on the packaging and marking of the candle;
- suspiciously low price and a number of other signs;
The candles themselves were also performed handicrafts, on the edges of the electrodes were visible, sections and edges could be curves, the applied marking on the candlelight was different in quality and type of font, sealing washers were dangled, and the like.
Note, if today we consider candles NGK, fake and original can be very similar appearance. The current situation is such that, as a rule, consumers (even subject to some experience) with a detailed study and careful examination with great difficulty distinguish the original product from the copy or not at all see differences.
The reason lies in the fact that the quality of printing and the manufacturer of fake products has noticeably improved. Moreover, on such candles, the engine can be worn to work without obvious failures and problems not one thousand or even a dozen thousand kilometers.
However, this does not mean that the fake is significantly approached by quality and work efficiency to the original. Research and tests conducted in laboratory conditions with special equipment clearly demonstrate all the troubles of using such candles for the engine and the driver's wallet.
Taking into account the foregoing, it is highly recommended to purchase NGK ignition candles and other well-known brands (DENSO, BOSH, etc.) only at authorized points of sale. It is also desirable to monitor updates and changes that, for obvious reasons, are specifically and with certain periodicity are implemented to protect their products themselves.
As a rule, such innovations are separately indicated in official sources. Manufacturers I. official dealers emphasize the attention of buyers at the appearance additional protection (for example, changing packaging design, distinctive features on the product itself, etc.). Even to control the control can be available by the party number on the packaging through the official website.
Let's summarize
As practical operation shows, original and correctly selected for concrete Engine NGK candles are distinguished by high reliability, stability of work and are capable of leaving all the stated service life under certain conditions.
It is also important to adhere to certain rules in the process of installing the candle on the engine. First, the candles are screwed from hand, not allowing distortion. After that, the candle wrench is used, and during twisting, it is necessary to observe the moment of tightening the NGK spark plug tightness, taking into account the characteristics of this or that engine.
You still need to understand that the quality of the fuel is strongly affected by the overall resource, the overall state power aggregate, Features of the OER OPERATION. If the motor is faulty, into the combustion chamber or, the candles are grilled.
Under conditions, when the engine is overheated, low compression is in cylinders, there are problems with the system, ignition, etc., even the most expensive and reliable spark plugs can work with interruptions and failure much faster than the stated term.
Read also
Analysis of the engine in the color of the spark plug color. Gray, black, white, red and other colors of sediments and nagar. How to properly diagnose.
The Japanese company NGK, in Russian abbreviation NLC, refers to the leaders for the production of spark plugs. Their products are different high qualityand also has a long service life of the candles. Celebrations reviewers indicate that the NGK spark plugs, despite their design and modification, are excellent for any type of gasoline power unit. Therefore, the products of this company will be discussed below.
General characteristics
This manufacturer operates on the market for a long time, and well known for developing spark plugs for power units known automobile companies. The ignition candle from NGK passes hard testing, so the presence of defective products in one batch is practically absent.
Due to the fact that technical progress and development do not stand still, today the NGK candles have the following technical characteristics:
- resistance to harmful environments, work part of products that work directly in the combustion chamber are performed from various metals, and other materials with resistance to high temperatures, loads, as well as the effects of harmful chemical compounds arising from the combustion of the fuel mixture;
- big resource of work, depending on which materials are made of electrodes, the maximum service life of the candle can reach more than 160 thousand mileage kilometers, and the minimum 15,000;
- low cost, even copies made of precious metals do not have a big cost, so products of this company affordably car enthusiasts with minor income;
- optimal calic numbernot for anyone that the ignition elements that are installed on modern power units contain such technical characteristics as a calil number, and depending on it, the candles are cold or hot, if the caliper number of candles and the power unit will not match each other, then the motor can simply come into disrepair.
It is important to remember that there are analogs of such products that are issued by other companies under license NGK. They do not differ from the original ignition elements, but the quality and service life may be lower.
NGK Product Marking
Due to the fact that the company is engaged in the production of spark plugs for various types of power units, it developed an individual classification of its products that can be found on the official websites of the company, or printed catalogs.
The NGK Ignition Candles Marking consists of Latin letters, as well as digital designations, the decoding of which is provided in the attached table:
In order to sort out such marking, consider products that have such digital and letter notation - BPR6ES.
The first letter B means that the product has a diameter of the thread and hexagon with a diameter of 14 millimeters / 20.8 millimeters.
The second letter P says that the candle has a protruding insulator, and the designation R says that the product has a noise-eyed resistor.
Figure 6 refers to potassium indicators, according to the above marking, such a candle relates to moderately hot ignition elements. Latin marking E says that the length of the thread is 19 millimeters, and s indicates that the candle has a standard design.
Here is a description of specific products with a certain marking.
Therefore, having on the hands of the technical data of the power unit, the driver is to make sure that the Ignition Candle of NGK BRR6ES has a standard design with moderate gyl ratibility and is suitable for its power unit or you need to choose other products.
What you need to pay attention to is at the time of the tightening. It is determined by an effort with which the candle must be screwed into the cylinder block so that it does not collapse or unwind from strong vibration. Depends on maximum revolutions Motor, which are specified in the technical documentation of the machine.
It is important to remember that when choosing these elements, you must turn to that part of the table, where the caliper is indicated. If the engine's technical documents indicate a certain calil number, the driver is obliged to remember that it is possible to choose a candle with a higher calibration rate, and it is definitely prohibited with a smaller.
Spark plug types manufactured by NGK
Products of this company are diverse. Consider that it offers motorists.
The classification of its ignition elements is two types:
- metal from which the electrodes are made;
- number of lateral (lower electrodes).
Consider each option in more detail.
To date, the electrodes of this company are made from nickelchrome alloy, as well as precious metals. The first option refers to budget options, so available to any motorist.
The second option is characterized by the fact that the candles have electrodes from precious metals, working longer, have the function of self-cleaning, save fuel, and also increase engine power.
Of particular interest is the products having electrodes from platinum. Platinum candles have a claimed mileage of more than 50 thousand kilometers, as well as racks to high temperatures, and create a white (most powerful spark), suitable for any types of motors even those that work on gas.
A separate place is occupied by iridium spark plugs. They can serve to 160 thousand mileage kilometers, save about 8% of fuel, and are suitable even for the most powerful (sports) motors. Their price is somewhat higher, but taking into account the fuel economy, the overpayment will be subtracted after several months of operation.
But the motor will always work as a clock.
We now turn to the question about the number of electrodes.
Immediately need to say that the standard ignition elements have one side (lower) and upper (central) electrodes. NGK has invented how to increase its product life, and for this, the following technical innovations have been developed:
- the presence of dug in the form of the letter V on the side electrode (which divides its surface into two parts), this is done to ensure that the spark obtained, first sought at one half, and after it is encircled (formed a nagar), went to the second half, By increasing the service life twice;
- the equipment of the working part is two, three or four side electrodes, it is also a technical cunning, which is based on the fact that when you fail one side electrode, the spark will look for another, so it will remain as powerful.
Here is such a modification in the NGK ignition candles.
Speaking about which spark plugs are better for a particular motor, you can say with confidence that this parameter Fully depends on the technical data of the power unit itself.
NGK is a recognized leader in the production of ignition elements for gasoline force aggregates. When choosing its products, you need to pay attention to its labeling, as well as technical requirements To the candles installed by the engine manufacturer.
Marking, applied to NGK spark plugs, contains important information About the features of candles, their properties and functions.
On each candle from the NGK range, as well as the packaging, a combination of letters and numbers is applied on the packaging, which gives the necessary information about the candle: a gantile number, dimensions, a thread type, the magnitude of the interelectrode clearance, information about the materials, as well as structural features.
NGK uses 2 standard encodings to marking their candles. There are also some special designations.
The first standard inscription contains 7 parameters indicated by the example:
B P R 5 E S -11
1. Thread diameter / hexagon
A - 18 mm / 25.4 mm
B - 14 mm / 20.8 mm
C - 10 mm / 16.0 mm
D - 12 mm / 18.0 mm
E - 8 mm / 13.0 mm
AB - 18 mm / 20.8 mm
BC - 14 mm / 16.0 mm
BK - 14 mm / 16.0 mm
DC - 12 mm / 16.0 mm
2. Structure
P - with a protruding insulator
M - Compact Candle
U - type with superficial discharge or additional spark gap
3. Obcoming resistor
R - with a resistor
Z - with inductive resistor
4. Kalil number
5. Thread Length
E - 19 mm
EH - 19 mm (total length), with partially sliced \u200b\u200bthreads 12,7 mm
H - 12,7 mm
L - 11.2 mm
F - conical dense landing (A-F - 10.9 mm; B-F - 11.2 mm; B-EF - 17.5 mm; BM-F - 7.8 mm)
Empty - Compact Candle (BM, BPM, CM - 9.5 mm)
6. Constructive features
B - SAE fixed contact nut (CR8EB)
CM, CS - obliquely performed side electrode, compact type (insulator length: 18.5 mm)
G - Race Ignition Candle
GV - Race Ignition Candle (Central Special V-Type Electrode from Gold and Palladium Alloy)
I, IX - Iridiyevoe electrode
J - 2 side electrodes of special shape (elongated, obliquely executed)
K - 2 side electrodes
-L - Intermediate Gallery
-LM - compact type (insulator length: 14.5 mm), used for lawn mowers
N - Special side electrode
P - Platinum Electrode
Q - 4 side electrodes
S - Standard Type (Central Electrode: 2.5 mm)
T - 3 side electrodes
U - type with a semi-surface discharge
VX - Platinum Ignition Candle
Y - central electrode with V-shaped notch
Z - Special design (central electrode: 2.9 mm)
7. Elephant clearance
-8 - 0.8 mm
-9 - 0.9 mm
-10 - 1.0 mm
-11 - 1.1 mm
-13 - 1.3 mm
-14 - 1.4 mm
-15 - 1.5 mm
The second standard inscription contains 6 parameters indicated by the example:
P F R 5 A -11
1. Type of spark plug
D - candle with increased reliability of ignition, with a particularly thin electrode
I - Iridium Candle
L - elongated threaded part
P - Platinum Candle
S - candle with increased reliability of ignition, square platinum insert
Z - Candle with speaker spark gap
The above designations can be combined, for example: ilfr ..., plzfr ...
The presence of the letter "L" is prioritizing with respect to all other letters denoting the length.
For example:
Candle with sealing ring: FR5AP-11 (thread length 19.0 mm); LFR5AP-11 (Thread Length 26.5 mm)
Candle with conical dense landing: RTR5S-13 (thread length 17.5 mm); PLTR6A-10G (Thread Length 25.0 mm)
2. Diameter, Thread Length, Seal Type / Hex
KA - 12 mm, 19.0 mm, O-ring / 14.0
KB - 12 mm, 19,0 mm, Sealing Ring / 14.0 Bi-Hex
MA - 10 mm, 19.0 mm, O-ring / 14.0
Na - 12 mm, 17.5 mm, conical dense landing / 14.0
F - 14 mm, 19.0 mm, sealing ring / 16.0
G - 14 mm, 19.0 mm, sealing ring / 20.8
J - 12 mm, 19,0 mm, sealing ring / 18.0
K - 12 mm, 19,0 mm, Sealing ring / 16.0
L - 10 mm, 12.7 mm, sealing ring / 16.0
M - 10 mm, 19.0 mm, sealing ring / 16.0
T - 14 mm, 17.5 mm, conical dense landing / 16.0
U - 14 mm, 11.2 mm, conical dense landing / 16.0
W - 18 mm, 10.9 mm, conical dense landing / 20.8
X - 14 mm, 9.5 mm, sealing ring / 20.8
Y - 14 mm, 11.2 mm, conical dense landing / 16.0
3. Obcoming resistor
R - with a resistor
4. Kalil number
from 2 (analog "9" at DENSO) - hot candles, slowly dispel heat, isolator and electrodes are heated stronger
Up to 10 (Analog "31" at DENSO) - Cold candles, quickly disperse warmth, isolator and electrodes are heated weaker
5. Constructive features
A, B, C ... - Special features
I - Iridiyevo Electrode
P - Platinum Electrode
Z - Special design (central electrode: 2.9 mm)
7. Elephant clearance
Empty - standard clearance (motorcycle: 0.7-0.8 mm, car: 0.8-0.9 mm)
-7 - 0.7 mm
-9 - 0.9 mm
-10 - 1.0 mm
-11 - 1.1 mm
-13 - 1.3 mm
-14 - 1.4 mm
-15 - 1.5 mm
-A - without a sealing ring
-D - special coating of the metal case
-E - special resistance
-G - side electrode with copper core
-H - special thread
-J - 2 side electrodes
-K - protected from vibration side electrode
-N - special side electrode
-Q - 4 side electrodes
-S - special sealing ring
-T - 3 side electrodes
Carburetor owners or injector engines They know how important it is to regularly monitor the state of the spark plugs, and if necessary, replace them. After all, the ignition candles ensure the correct start of the motor and its stable operation. In previous articles, we looked at how to make the selection of spark plugs, as well as described in detail the key characteristics of products. The topic of today's article will marking spark plugs and this information will help car owners correct, respectively, with specific characteristics of the power unit, choose spark plugs. Let's focus on products most famous manufacturerswhich can be used for cars of Russian and foreign brands.
Today, the SZ domestic and foreign manufacturers are presented on sale, so motorists have almost no problems with their choice.
Spark plugThe only thing that can become a small obstacle is the existing differences in products. BUT distinctive characteristics Ignition candles are as follows:
- Company-producer - Bosch, Denso, Champion, NGK and others.
- Construction features - One or more electrodes.
- Gallery.
- Clearance of electrodes - A point where the working mixture is actually ignited.
- Material of electrodes - alloy steel with nickel / manganese, copper, iridium, platinum.
- Connecting dimensions Spark plugs - length / step of the threaded element, hex parameters (define the key parameters used during installation / dismantling).
In other words, without certain knowledge, choose candles not so easy. Of course, there is an option, take the candle to the store, already installed in the car, but it is not always convenient. Below, we will decipher the marking of the most popular spark plugs in the car owners, as well as the tables of their interchangeability, which will help choose the correct sample in the absence of the SZ manufacturer. For example, Russian Candles A-17-DV are put on the VAZ "five", and they can be replaced by products from other manufacturers: L 15 Y (Brisk), BP 6 ES (NGK), W 7 DC (BOSCH) or 64 ( Autolite). In principle, this is the same product, differing only in marking. And what knows the markings applied to the candles and how to navigate them - let's talk later.
Table of gantal values Domestic devices
Russian sparking for all types of transport satisfy the international regulation ISO-MS-1919that allow them to be replaced by imported analogues by key characteristics. In addition, the labeling of products made by Russian enterprises, provided by the Rules OST-37.003.081. Decipher the labeling of domestic devices follows alphanumeric characters.
Read the designation of Russian SZ
So, case thread parameters are indicated The first letter symbol "A", which hides the parameters M14x1.25 - a value that distinguishes the Ignition Candles of the "Standard" type. Marking devices symbol M involves the M18X1.5 thread parameters (key for mounting / disassembly 27).
The letter symbol should be digital indicating a glowing indicator - The more this value, the lower the temperature regime is necessary for the formation of a spark. The glow of domestic candles is located in the range of 8-26. The most common candles with indicators 11/14/17. The labeling of the SZ in a calilic value shares the products to the "cold", installed on high power motors or hot.
Marking of Russian candles Consider an example of what values \u200b\u200bare made to the labeling of the SZ russian production . Take a product marked with 17 DV code - this is a candle having a classic thread, a vanish indicator 17, the thread length (D) 9mm (if it is less than the value, the symbol in the marking is not affixed), the symbol B is usually denoted by an insulator with a protruding thermal tip.
If the product marking contains an alphabet symbol P (A17 DVR), this means that the head electrode is equipped with a resistor that overwhelms interference. The letter M symbol indicates the use of copper materials with high heatproof, which contributes to the creation of a shell on the head element.
In the designation of AU 17 DVRM the letter symbol does indicate an increased hex size (16mm instead of 14). With an even larger than hexagon (19mm) - the letter symbol M - Am 17 B is affixed into the marking.
Examples of possible designations of domestic products with decoding
A 11. - Basic product having a thread M14x1.25, hexagon 20.8mm, a vanish indicator 11, a thread length 12.7mm, a thermal cone is not protruding, without a resistor, a head electrode made of heat-resistant material.
A 11 R. - Analogue of the previous sample having a built-in resistor.
Ignition Candle Parameters And 17 dv - a basic type with M14X1.25 carvings, a hexagon 20.8mm, a calil value 17, the thread thread 19mm, there is a thermal protruding cone, without a resistor, a head electrode made of heat-resistant alloy.
A 17 DV-10 - a product similar to the previous sample (A 17 DV), which has increased spark gap (0.7mm - in the base structure, this value is 0.5mm).
AU 17 DBRM - Basic type element, M14x1.25 thread, 16mm hexagon, a calil value 17, a 19mm thread size, a heat cone performs from the housing, with a resistor and a head electrode in a heat-resistant shell made of copper alloy.
Imported devices
On imported SZ designations are applied by analogy with RussianBut using other alphanumeric characters that can enter car owners to some delusion. Although, in order to simplify the selection on the package, information is applied on which TCs they can be used. In addition, the marking of imported devices can be decrypted by special replacement tables. But we will dwell on the samples most sought after by car owners in more detail. Consider the labeling of the leading brands.
Assortment of imported candles Candles ngk.
Company NGK (Japan) is called the leader in the production of SZ. Its products are recognized as high quality and reliable as possible. NGK candles are labeled in this way:
- domestic devices and 11 are an analogue of products B 4 H;
- And 17 DVR is replaced with BPR 6 ES.
The labeling of products NGK is quite simple. In particular, B4H:
- the letter symbol in prescribes the diameter and stepper thread rate, in this case it is M14x1.25, other possible designations A / C / D / J;
- digital symbol 4 indicates a calil value - this indicator varies in the interval 2-11;
- the letter symbol H denotes the thread value (12.7mm).
Marking of candles NGK. The designation BPR 6 ES indicates that this is a product equipped with a standard carvings, a projection insulator (P), in stock Resistor (R), a van coefficient 6, a thread size is 17.5mm (E), the S symbol indicates the individual properties of the product.
The presence of a digital symbol at the end (usually through a hyphen) indicates that the electrodes have a gap of such a magnitude.
Bosch sparking
Bosch products do not need a view. Suppose the article WR 7DC has such a decoding:
- symbol w - carving with standard parameters (14);
- r symbol - the presence of a resistor impeding interference;
- digital symbol 7 - rolling value;
- the letter D is the magnitude of the thread (19mm);
- letter C is an electrode made of copper alloy, other possible notation - o (normal alloy), S (silver element), P (platinum).
WR 7DC marking products are an analogue of domestic candles and 17 DVRs that work with vase cars engines.
Bosch candle marking Czech devices Brisk.
The company from the 35th year of the last century produces SZ that enjoy the constant demand from our motorists.
Article on the candlelight of this manufacturer, for example, DOR 15 YC it has the following decoding:
- the letter D is indicated by the size of the size "standard" (1.25mm), focused on key 14, with the size of the housing 19mm;
- the letter symbol about indicates a special design of the product performed according to the ISO Regulations;
- the letter R is indicated by the presence of a resistor, and the symbol X is denoted by the ability of the resistance of the electrodes to the formation of Nagar;
- figure 15 is a gawal indicator that can vary in the interval 8-19 (with the index 13, the manufacturer is not affixed);
- the letter y is indicated by the protruding arrester;
- the symbol C indicates a head electrode made of copper;
- 1 (mm) - the clearance of electrodes.
Candles Brisk. Beru devices
Candles are produced by BERU (Germany) And other completing premium quality. Products are marked, for example, as 14 R-7 DU, which is decoded as follows:
- 14 - thread size (14 × 1.25mm);
- R - there is a resistor;
- 7 - Calinal coefficient (interval 7-13);
- D is the magnitude of the thread (19mm) with a gasket-compactor under the cone;
- U - Head electrode from alloy copper + nickel.
On an example of another notation - 14 F-7 DTUO - we will explain that the labeling varies somewhat: the values \u200b\u200bof the values \u200b\u200bof the SZ is standard, and the nut less than the installation space (F) can only be used in "low-power" motors with a seal (T), the head element of the product Strengthened (o).
Candles Beru. Devso devices
This company marks its products so - SK 16 PR-A 11, which is decoded as follows:
- S is a head electrode with a diameter of 0.7mm from iridium, the electrode with a side is equipped with a platinum overlay;
- K - the diameter of the hexagon;
- 16 - Calinal coefficient;
- P - protruding on a 1.5mm head electrode;
- R - there is a resistor;
- A - the parameter specifically for this modification of the SZ;
- 11 - size of the gap.
Note that alphabetics on DENSO devices can vary depending on the product series.
Candles DENSO. CHAMPion devices
Products of this brand signed by analogy with other candles. For example, the designation RN 9 BYC 4 is:
- R - the presence of a resistor (when specifying a symbol E - the product is equipped with a screen, a wire resistor);
- N is the standard thread value (10mm);
- 9 - Calial value (interval 1-25);
- BYC - a head electrode made of copper with two side elements (Products "Standard" is marked with a symbol A);
- 4 - Clearance of electrodes.
Candles Champion Types of candles
Standard products are two-electrode candles equipped with side and head electrodes. Today similar specimens are more common and put on domestic cars. Also in demand are products with several electrodes, characterized by the number of lateral elements. The period of operation of such products is much more than that of standard SZ, while it does not affect the caliper. It is less likely to find products of flare and forcar design, since they are not installed on all engines.
Work period
Brand and modification SZ affect the period of operation of the candles. For example, non-nickel devices will work approximately 30,000 km. Products from platinum are operated much longer - approximately 80 thousand km.
Products from IridiaDepending on the design features of the electrodes, "live" and 70,000, and 120000 km. Metal metal does not affect the resistance of the SZ.
Platinum / Iridi electrodes are resistant to the formation of Nagarov, so the inflammation of the working mixture is better.
