Spark plugs are an important element of the entire ignition system of a gasoline engine. In fact, the efficiency of combustion of the fuel charge in the cylinders directly depends on their operation. Spark plugs also influence the moment of ignition, the temperature in the combustion chamber and a number of other parameters.
As for ordinary car enthusiasts, it is enough to know that spark plugs need to be changed regularly, and also to select the right spark plugs for a specific engine. Next, we will look at how to select spark plugs for a Granta, what nuances to pay attention to when selecting spark plugs for a Lada Granta with an 8-valve engine, etc.
System operating mode
A car's spark plug creates a spark to burn the fuel mixture in the cylinder. Parts work in difficult conditions. They are subject to high thermal and electrical loads. The temperature regime of the working surfaces of the spark plugs inside the combustion chamber reaches 900°C. On the Lada Granta, an arc electric discharge between 2 electrodes is created with a voltage of 30-40 kV.
Heavy duty work affects the service life. Carbon deposits form on the surface of the insulator and the metal electrodes burn. The temperature regime is determined by the loads in the combustion chamber. Like all parts, spark plugs must withstand mechanical and thermal disturbances. The driver must remember that excessive overheating leads to damage to parts of the ignition system and engine. If the coolant overheat warning lamp on the instrument panel lights up red, then measures must be taken to cool the unit. It is necessary to disable the ignition switch of the Lada Granta. The engine housing must cool for at least 30 minutes.
Stable operation of the spark plugs is one of the conditions for the normal functioning of the engine. Trouble-free operation of the ignition system depends on compliance with the following rules:
- Install spark plugs with the characteristics specified in the AvtoVAZ instructions.
- Follow the instructions for replacing parts. On average, spark plugs can be used for 30 thousand kilometers for electronic ignition.
- Carry out regular maintenance.
- Use high-quality motor oil and gasoline.
- Observe the engine temperature.
Set of preparatory actions
When carrying out operations with electricity, first disconnect the battery - you need to remove the negative terminal. The nut on the terminal is unscrewed with a flat wrench “10”. Next, if we talk about motor 11183, you need to remove the plastic cover.
Surprise in the form of plastic protection
The part itself needs to be pulled up, snapping off all the rubber supports one by one. It would be better to unscrew the filler cap first.
The 8-valve engines of the Lada Granta family are very similar, the difference in power is due to the use of different connecting rod and piston groups. Due to different SHPGs, the engine that Grant inherited from Kalina (11183) does not bend the valves. But valves 11186 and 21116 are bent. To prevent this from happening, we recommend following the technical regulations for servicing and replacing the timing belt.
We need part "2"
If you lose the supports, it doesn’t matter, they can be replaced. Support number in the VAZ catalog: 21120-1008658-00 (or 01).
The next step is to disconnect the high-voltage wires. Each plastic tip can be removed by hand (see photo). It is simply pulled out by rocking the body from side to side.
Location of spark plugs and protective caps
Pull the tip up
If you lack skill, it will be easy to damage the wire itself. Be careful!
Tip: to avoid extra effort, you can lubricate your palm with machine oil.
The third step is to clean the space next to the well. Use available materials.
There should be no dust near wells
Let the motor look at least as shown in the photo.
Replacement and Maintenance
The manufacturer recommends installing AU17DVRM brand spark plugs on a VAZ-2190 with an 8-valve version. These are domestic products of JSC ZAZS Russia. Its catalog number is 21110-3707010-00. Foreign analogues are spark plugs WD7DFC BOSH (Germany), BCPR6 ES-11 NGK (Japan), DR15YC BRISK (Czech Republic). It is advisable to change the complete set - all 4 pieces. When selecting spare parts, always pay attention to the technical specifications. For a spark plug, these are the diameter and length of the thread, and the heat rating. The purchased brand of device must correspond to these three engine parameters. Even a small error in thread length can lead to failure.
Spark plug device
Choosing spark plugs wisely
From the factory, “A17DVRM” spark plugs will be screwed into the 11183 engine. The same parts can be found in other engines: 11186, 21116.
Products of JSC "Robert Bosch Saratov"
The manufacturer is EZAZS (Saratov). For candles “A17DVRM” there are complete analogues: WR7DCX (BOSCH), as well as LR15YC-1 (BRISK) . They are recommended for use by the VAZ plant.
The gap between the electrodes should be 1.0-1.15 mm. For winter, the value can be reduced to 1.0-1.05 mm.
Various suitable options (analogues of original candles)
For winter operation, you can install spark plugs “A14DVRM” or “A14DVR”. But changing the heat number from “17” to “14” is not recommended. Listed below are analogues for “A17DVRM” candles:
- WR7DPX (BOSCH);
- T17DVRM 1.0 (EZAZS) – three electrodes;
- BRP6ES-11 (NGK);
- W20EPR-U11 (DENSO);
- 121-1370/KMR6C11 (WEEN);
- LR15YCY-1 (BRISK);
- BH7CR11 (HOLA);
- 14R-7DUX (BERU).
Write in the reviews about your experience regarding the choice of spark plugs!
Gap adjustment
Spark plug maintenance involves cleaning and adjusting the spark gap between the electrodes. It must be taken into account that it increases to the maximum permissible distance. During operation, metal parts wear out. The central straight electrode is rounded, and a depression is formed on the side curved plate. To prevent interruptions in spark formation, it is necessary to adjust the size of the spark gap. It is set with a probe within 1-1.5 mm. The feeler plate fits flush into the correctly set gap.
Clearing away cinder deposits
You should resort to this procedure if the need arises and cinder deposits have accumulated on the electrodes. Here we do not recommend using pointed objects made of hard steel. Use a wire brush with soft bristles or sandpaper. Alternatively, you can resort to cleaning using a chemical or thermal method.
Inspect the condition of the electrodes after 10 thousand km or earlier, if the engine prompted this by its capricious operation. If the intensity of use of a LADA Granta car is low, then inspect the spark plugs once a season (twice a year).
Replacing spark plugs is very common, and the owner of a Lada Granta is not provided with a full guarantee of the high-quality functioning of the system and, accordingly, the engine. Also, no one will undertake to claim that the new spark plug will withstand the regulatory service life of 30 thousand km.
We change spark plugs if the following circumstances occur:
- there were signs of a poor (not the first time) engine starting;
- the unit is troit;
- traction performance has deteriorated significantly;
- mileage exceeded its regulatory limit of 30 thousand.
Be aware of the risk of injury from high voltage traveling through the wires leading from the coil to the spark plug tips. An important element of the spark plug is replacing them, so it must be done carefully.
Useful tips
First of all, it should be noted that many problems with the engine and ignition system are directly related to the spark plugs. Moreover, spark plugs can cause premature failure of the catalyst.
It is important to understand that disturbances in the combustion process of the mixture or engine detonation often cause a serious reduction in the life of the internal combustion engine and failure of the power plant.
For these reasons, it is necessary to change the spark plugs on the 8-valve Lada Granta or any other car according to the regulations or even ahead of schedule. The fact is that even those designed for 80-100 thousand km. mileage, iridium or platinum spark plugs can become unusable already at 50-60 thousand kilometers, and ordinary spark plugs at 10-15 thousand.
We also note that there are a large number of fakes on the market, and in the top segment. In other words, products from popular brands (for example, NGK or Denso) are often simply counterfeited.
The result is that instead of expensive iridium or platinum spark plugs, the owner purchases a product of dubious quality, which is no different from conventional spark plugs and has a short service life.
Symptoms of worn spark plugs
When spark plugs wear out, the following symptoms may appear:
Spark plugs are an important element of the entire ignition system of a gasoline engine. In fact, the efficiency of combustion of the fuel charge in the cylinders directly depends on their operation. Spark plugs also influence the moment of ignition, the temperature in the combustion chamber and a number of other parameters.
As for ordinary car enthusiasts, it is enough to know that spark plugs need to be changed regularly, and also to select the right spark plugs for a specific engine. Next, we will look at how to select spark plugs for a Granta, what nuances to pay attention to when selecting spark plugs for a Lada Granta with an 8-valve engine, etc.
Spark plug rating for LADA Granta
In this section you will find out which spark plugs are best for the 8-valve Lada Viburnum; perhaps you will purchase a product from our rating.
Denso (4504) PK20TT
Denso offers a powerful spark plug that is sure to impress users and bring great benefits to vehicles. The Denso Platinum TT spark plug has excellent performance and durable construction!
The spark plug is beautifully equipped with dual tip technology with an 11mm platinum center electrode and an 11mm titanium ground electrode. Moreover, this spark plug contains many benefits for your car! The spark plug will improve fuel economy and provide better acceleration and faster starting than other platinum plugs.
That's not all! This spark plug comes with a refined aluminum oxide powder insulator that provides superior dielectric strength and thermal conductivity, allowing the material to withstand extreme loads. Customers have praised the spark plug's ability to improve engine performance. Although you only get one spark plug, it comes at an affordable price of R500 and is resistant to erosion and corrosion, making it a worthwhile option!
Bosch 4417 Platinum
We move on to the next spark plug on our list from the Bosch brand, which is known for producing quality power tools and kitchen appliances.
The Bosch Platinum spark plug is a pretty impressive product that comes with a lot of handy features. The spark plug boasts its revolutionary air-gap ignition technology, which features four yttrium-coated grounded electrodes that provide a long-lasting, powerful spark for maximum engine performance. Additionally, the spark plug's four yttrium-enhanced ground electrodes provide optimal access to the air-fuel mixture for the most efficient combustion.
Did we mention that yttrium spark plug ground electrodes also reduce gap wear and oxidation for extended life? Yes, this spark plug can do quite a lot! Additionally, the spark plug contains an electrode gap that is factory installed for ease of installation.
Autolite APP104
Do you need more than one spark plug, or would you rather just replace all the spark plugs? Consider this product from Autolite.
Autolite clearly understands that some customers need more than one quality spark plug and do not want to purchase multiple spark plugs at once. Autolight offers us a convenient set of premium spark plugs. Autolite spark plugs are more than just a convenience, they will improve the performance of your vehicle. Customers have praised the spark plugs for keeping their vehicles running smoothly.
Moreover, these spark plugs have a durable metal body for which they are also praised. These spark plugs feature durable, premium design and excellent performance. They have one obvious drawback: the price. Iridium spark plugs will cost you quite a lot, about 600 rubles.
ACDelco R44LTS6
ACDelco presents a wonderful product that is sure to amaze all its users with its durable design and attractive price. The spark plug is designed with a Black Onyx coating to help prevent corrosion. In addition, the spark plug contains a copper core that has thermal properties that provide excellent heat transfer and increase the life of the spark plug.
The spark plug comes with a nickel-chromium alloy jacket to help prevent corrosion on the center electrode. It also has a ribbed muffler seal that increases its resistance and prevents flashing and misfires. One of the main features of this product is its affordable price. Although you can only purchase one spark plug, it costs about 300 rubles. Of course, make sure the spark plug fits your vehicle first! However, this product is a worthy option!
What is worth knowing about spark plugs?
Candles can have the same appearance and differ in parameters. Therefore, you should read the information about the recommended type of spark plugs contained in the vehicle owner's manual and the spark plug manufacturer's catalogue. They often have different symbols, but replacement tables are available online.
There are three types of spark plugs:
They are equipped with a copper electrode and are the cheapest option available.
They have an iridium alloy electrode. The use of this metal is due to its characteristics, since iridium is one of the hardest metals.
The most durable option. The electrode in this plug is thinner than a standard one, which means that a lower ignition voltage is required.
Thermal value is the most important parameter of a car spark plug, on the one hand, the ignition temperature must be reached, on the other, the maximum temperature cannot be exceeded. Their operating temperature depends on the power received by the engine due to difficult operating conditions. Low numeric code values of 2 through 4 are “cold” spark plugs, which have high thermal conductivity in busy engines. If we are dealing with high values, these are "hot" spark plugs, which have low thermal conductivity for weak engines.
Electrodes are another feature of car spark plugs. The middle electrode determines the reliability of ignition when operating conditions change. The shape and number of spark plugs depends on their durability and engine performance.
Let's sum it up
Taking into account the above information, it becomes clear that choosing Lada Granta spark plugs for an 8-valve engine is quite simple. You can use both original solutions supplied by the manufacturer and analogues from other manufacturers.
Finally, we note that the above basic rules and recommendations are also relevant for many other cars with a similar type of engine (for example, selecting Grant 16 valve spark plugs and replacing them.) Only the parameters of the spark plugs themselves will differ, and there may also be some individual nuances in terms of replacement on a motor of one type or another.
The VAZ-2190 car has problems, does it start badly or does it stall? Probably the spark plugs for the Lada Grant are failing - the 8 valve version often suffers from this. Nobody wants to freeze on the road in a cold car that cannot be started. To avoid this situation, the driver should carry out regular maintenance of the ignition system.
