What gap should be on the spark plugs of a VAZ 21213 carburetor

The 1.7 liter carburetor engine with the contactless ignition system of the Niva 21213 car allows the installation of some models of NGK spark plugs.
BPR6ES 7822

Copper center electrode, one side electrode, noise suppression resistor.

Thread diameter - 14 mm

Thread length - 19 mm

The gap between the electrodes is 0.9 mm

Resistance - 5 KOhm

BPR6EGP 7084

Central electrode with platinum soldering. One side electrode. Noise suppression resistor.

Thread diameter - 14 mm

Thread length - 19 mm

The gap between the electrodes is 0.9 mm

Resistance - 5 KOhm

BPR6E V-Line #2 2268

Copper center electrode with V-shaped cutout. One side electrode. Noise suppression resistor.

Thread diameter - 14 mm

Thread length - 19 mm

The gap between the electrodes is 0.9 mm

Resistance - 5 KOhm

BPR6EIX 6637

Thin (0.6 mm) central electrode with iridium soldering. One side electrode. Noise suppression resistor.

Thread diameter - 14 mm

Thread length - 19 mm

The gap between the electrodes is 0.8 mm

Resistance - 5 KOhm

Notes and additions

— You can independently select NGK spark plugs for your car’s engine in the catalog on the official website of this manufacturer: www.ngk.de/nc/ru/podbor-produkcii/

— You can understand what the NGK spark plug markings mean by reading the article: “Decoding the NGK spark plug markings.”

What do candles do?

As you know, a spark plug supplies a spark to the cylinder to ignite the fuel inside the combustion chamber. The spark plug is exposed to enormous temperatures, which of course does not have a favorable effect on its condition, so neglecting to replace spark plugs is highly discouraged and, if possible, it is advisable to change them before winter for easier starting in cold weather.

A worn-out spark plug can cause a lot of trouble, such as a lot of engine tripping, a number of misfires, loss of power and even an increase in fuel consumption.

In this article you will find the answer to the question of which spark plugs are best suitable for the Lada Niva.

Can spark plugs be long lasting and require no maintenance?

Theoretically, yes, because modern cars often have enough spark plugs, even for more than 100,000 kilometers. However, you need to be aware that, regardless of even their ideal condition, you need to replace them according to the manufacturer’s instructions - usually about 30,000 kilometers. For platinum parts, replacement is recommended, usually after 120,000 km.

You can check the condition of the spark plug during a routine inspection. When buying spare parts, you should be aware that specific spark plugs are suitable for a particular engine, and it is quite difficult to find universal parts. Do not believe the assurances of a car mechanic who assures you that the spark plug of another car will match yours. This can ultimately lead to damage to the motor and additional repair costs. You can buy new spark plugs at Niva21. They must comply with the vehicle manufacturer's recommendations.

Spark plug gap on Niva

The gap between the electrodes on the spark plugs is one of the main indicators that directly affects the operation of this engine part. It must be checked every 20-25 thousand km to ensure proper engine operation. The gap can be adjusted if it is out of the normal range or it is better to replace the spark plugs with new ones.

The normal gap on Niva spark plugs is 1.1-1.2 mm.

Niva's original spark plugs

The Niva is supplied from the factory with domestic spark plugs from the Engel plant, which specializes in the production of automotive spark plugs. The plant installs AU17DVRM brand spark plugs; these plugs have proven themselves well and meet all quality standards and service life.

A large number of analogues of these spark plugs have appeared on the market, which are no worse than factory ones, and sometimes even better. Analogues of candles can be both imported and domestic.

Below is a table of spark plugs suitable for a Niva car from well-known brands such as DENSO, BOSCH and Brisk.

Expert recommendations

Niva Chevrolet injector with VAZ-2123 engine are equipped with A17DVRM spark plugs. This plant, despite the fact that it is located in Russia, belongs to Bosch. These German manufacturers have proven themselves well in the market.

It is important to consider some differences when choosing a SZ:

EZ A17DVRM consists of Russian-made parts;
APS A17DVRM consist of German-made parts.

To avoid confusion, you should always look closely at the markings. Speaking about the second option, one must also take into account the fact that APS A17DVRM are manufactured using advanced technologies. Among other things, they are distinguished by better processing of the electrodes, and therefore you can avoid problems with a running spark, which is typical for defective devices.

When choosing suitable products, you need to follow some rules:

DENSO IW20 and NGK devices contain a sufficient amount of iridium, which has a beneficial effect on engine life.
BOSCH WR78X parts accommodate four electrodes.
GM WR8DCX are suitable for use in winter and summer. They are preferable to the aforementioned A17.

The best candles for Niva

Based on reviews from forums, it has been repeatedly revealed that Nivovody gives their preference to NGK candles. These spark plugs are excellent for the Niva engine and can withstand high temperature loads. NGK spark plugs make it easier to start the engine in cold weather and even reduce fuel consumption due to their structure. The closest to standard spark plugs and suitable in design to the Niva engine will be NGK No. 11 spark plugs.

These spark plugs easily overcome the 30,000 km barrier without any damage.

Conclusion

You need to select candles according to your taste and color, as well as the thickness of your pocket, but you should remember that you shouldn’t save money and it’s better to pay once for good candles that will serve faithfully than to suffer from starting the car in the cold.

Malfunctions of the ignition system affect all modes of engine operation. When checking it, special attention should be paid to spark plug gaps, ignition timing, cleanliness of high-voltage wires, condition of the ignition coil and distributor connector, serviceability of vacuum and centrifugal regulators.

You need to wash the outside of the carburetor without disassembling it. Particular attention must be paid to the cleanliness of moving joints, damper axes, levers and rods. To wash the chambers and channels, it is recommended to completely disassemble the carburetor. During partial disassembly, dirt from the external surfaces may get inside the carburetor. To do this, use kerosene or special washing liquids and a brush with moderately stiff bristles. You can wash individual carburetor parts with acetone. Gaskets, diaphragms and rubber seals are not solvent resistant. These parts must be removed and washed separately and only in gasoline.

If there are old deposits in the carburetor channels, its body parts can be immersed in detergent compounds for several hours. To completely remove deposits, all channels after flushing must be blown with compressed air under high pressure (6-8 bar).

It is not recommended to wipe carburetor parts and cavities with a lint cloth. Even the smallest fibers separated from it fall into the channels and jets, which can lead to subsequent adhesion of dirt to them, reducing their throughput or clogging. Read it, like it!

Both the engine power and the stability of its operation, as well as fuel consumption, depend on the correctly set gap on the spark plugs. As is written in many operating instructions for the Niva VAZ 2121 car and its modifications, the optimal gap between the spark plug electrodes is 0.8 mm.

Alignment is done using a special probe, the thickness of which must be appropriate. Especially for this, along with other devices, I ordered a set of probes from Jonnesway, which contains 20 plates of various thicknesses.

Select the required thickness of the plate - probe:

and insert it between the electrodes of the spark plug so that the probe fits tightly, not without much effort:

After carrying out this procedure on my Niva, the engine became more stable at idle. Before this, the gaps were a little too high, which contributed to ignition breakdowns.

Manufacturers

Engine diagnostics based on the condition of the spark plugs. Inspection of the spark plugs can help you identify some engine malfunctions without contacting a special service center.

Particular attention should be paid to the appearance and color of soot. The normal condition of a spark plug that does not require replacement is moderate burnout of the electrode, a complete absence of oil stains, as well as a minimal amount of soot and coffee-golden deposits on the insulator. In this case, the Chevrolet Niva does not require constant topping up of oil and does not frighten the owner with a brutal appetite

In this case, the Chevrolet Niva does not require constant topping up of oil and does not frighten the owner with its brutal appetite.

If you find black carbon deposits and dry soot on the center electrode, most likely your car is consuming much more fuel than you would like. The reason may be a malfunction of the air damper drive mechanism or injector, or a clogged air filter.

In general, this indicates a failure in the engine management system. A light gray or white color of the electrode means it is overheated, which ultimately leads to burnout of the exhaust valves.

You may have selected the wrong spark plugs or are using fuel with too low an octane rating. The engine is healthy - so are the spark plugs. The red skirt of the central electrode is the result of using an excessively large volume of additives containing metal in gasoline.

Metal deposits during prolonged use of such fuel can form a conductive coating on the insulation, causing the spark plugs to fail. This means that it got from the engine into the cylinder.

The reasons are incorrect selection of spark plugs, wear of valve guides, valve stem seals or piston rings. As a result, the Chevrolet Niva consumes much more oil than usual.

Replacing spark plugs in Niva Chevrolet

https://youtube.com/watch?v=zIbel_Ki9is

If on the central electrode and its skirt you find a dense layer of oil with particles of cylinder destruction and drops of unburnt fuel, it means that one of the valves is damaged or the partition between the piston rings is broken. As a result, engine power weakens and fuel consumption doubles. In this case, a full-scale renovation is necessary.

A completely destroyed central electrode and its skirt are the result of using defective spark plugs, long-term engine operation with detonation, or the use of low-octane fuel.

The cylinder head will require major repairs. Ash deposits on the electrode indicate the wear and tear of the oil scraper piston rings, and the destruction of the ceramic insulator indicates a faulty spark plug or its mechanical damage.

Erosion of electrodes occurs when using leaded gasoline, and flooding of spark plugs with fuel occurs when the ignition system or injector is faulty.

Types of spark plugs for a Russian SUV Original Bosch spark plug So, you have carried out diagnostics and come to the conclusion that your car does not require repair. Which spark plugs to choose if you only need to replace them?

A spark plug with a central electrode coated with platinum. When you install ordinary spark plugs, through thousands. In this case, four-pin ones.

Spark plugs Denso Iridium Pack IW20 #4 5306 (4 pcs.) NIVA 21214; 2123

I will not repeat the nonsense that is said in stores and markets. It was a completely different SUV, but then this was confirmed in our cars. Their main advantage is starting the engine in the morning in very cold conditions.

In summer they are ordinary, in winter they are multi-contact. Candles are made in Germany. Spark plugs Niva Chevrolet and Niva.

The tightening torque must correspond to that specified by the manufacturer. This means that work can also be done in unfavorable environments where the temperature is elevated. If the heat value is low, this means that the SZ is hot and will often overheat.

What to look for when choosing candles

If it overheats, it will not last long. Size plays an important role, that much is clear.

If its size is small, the part simply will not screw into the socket and then the electrodes will be at a great distance from the combustion chamber. If the length is longer than necessary, then the electrodes will stick out, and this increases the risk of contact with the piston.

When choosing, it is best to use the instructions from the car, which will tell you which spark plugs to install in the Chevrolet Niva. In addition, knowing the exact size, you can choose the best heat rating (author of the video - VanLe9).

Spark plug gap. What should it be and what does it affect?

CONTENTS OF THE ARTICLE

First, a little definition.

The spark plug gap is the distance between the upper and lower electrodes, necessary for optimal operation and ignition of the fuel mixture. If this distance differs from the recommended standards, the engine will not run smoothly, and either twitching or detonation similar to “triple” of your unit is possible.

In simple words, if the gap is different from the norm, set this way from the factory or by the seller, then you can shovel at least half of the motor, but you won’t find the reason. This is especially noticeable on carburetor systems. BUT first, I suggest starting with the device and operating principle.

Spark plugs

Post by ParaLanik » 04 Dec 2012, 12:46

Good afternoon everyone, I would like to hear feedback on the use of various spark plugs in our cars. Who is “lighting” which ones and what’s the catch?

I’ll start with myself - I bought the car with EZ A17DVRM immediately after running it in (2 thousand km), changed it to BPR6ES11, 10 thousand became unstable XX. Changed it to DENSO W20TT - now 31 thousand km. — the engine works well.

However, winter is coming. Maybe it needs to be changed - who will say what? I myself am looking towards multi-electrode ones: either BERU Ultra X or BERU Ultra X Platin or BERU UXT6

or W20EPBR-S - I doubt them and the gap of 0.85 is too small for the injector, or NGK BUR6ET - similar problem with the gap.

Re: Spark plugs

Post by Sunny » 04 Dec 2012, 13:21

Re: Spark plugs

Post by T-Rex » 04 Dec 2012, 13:36

Re: Spark plugs

Post by Sash » 04 Dec 2012, 16:12

Re: Spark plugs

Post by Vladimir55 » 04 Dec 2012, 19:28

Re: Spark plugs

Post by Sunny » 05 Dec 2012, 06:35

Re: Spark plugs

Post by Sash » 05 Dec 2012, 09:20

Re: Spark plugs

Post by ParaLanik » 05 Dec 2012, 09:57

Re: Spark plugs

Post by Sunny » 05 Dec 2012, 12:54

Re: Spark plugs

Post by ParaLanik » 05 Dec 2012, 13:14

The most, the very thing that is needed. (V-Line #13). Only here it is impossible to find something that is not a fake. I think maybe they haven’t yet learned how to fake its more expensive analogue? BPR6EIX11

I found a sign about the applicability of these spark plugs for our cars https://www.technicsavto.ru/site/?part=prim_ngk

Re: Spark plugs

Post by Sunny » 05 Dec 2012, 13:37

Re: Spark plugs

Post by AMPER » 05 Dec 2012, 17:54

Re: Spark plugs

Post by Slava N » 15 Dec 2012, 18:40

Re: Spark plugs

Post by Sunny » Dec 15, 2012, 06:49 pm

Re: Spark plugs

Post by AMPER » Dec 15, 2012, 7:15 pm

Re: Spark plugs

Post by Sunny » Dec 15, 2012, 7:24 pm

Re: Spark plugs

Post by Slava N » 15 Dec 2012, 20:35

Re: Spark plugs

Post by Zakonnik » Dec 29, 2013, 10:06 am

Re: Spark plugs

Post by Leon71 » Jun 01, 2014, 00:44

Re: Spark plugs

Post by Niva1600 » Jun 01, 2014, 10:46 am

Engine 1.6 carb OZONE, new wires are not oak (700 rubles). gas station 92. company 2000 I’ll tell you from personal experience.

1) Brisk candles - 170 rubles (4 pieces), in winter they start the car -30, the car runs well, the mileage of the candles is short, they quickly fail. Replace every 2000-5000. They are very afraid of soot. 2) Champion candles (Champion) - 330 rubles (4 pieces), start the car the same way - 30, the car runs exactly the same, The mileage of the candles is average, replacement every 5000, although I change 1 candle at a time due to carbon deposits, I just throw it away. Although it could be a candle OK.

I put the brisk together with the champion, they work the same way. It’s not a fact that brisque dies quickly, I used briskies mainly in winter. The consumption is the same. PS: You can clean the spark plugs with a can (Carburator Cleaner)

Required tools for replacement:

Brush
Spark plug key for 21
Gap adjustment gauge
Pliers or hammer

If you decide to install new spark plugs? then you first need to set a gap on them.

How to set the spark plug gap in the field:

For carburetor Niva 2121 this gap is - 0.9 mm For injector 21214 - 1.11 mm

Insert a feeler gauge of the required size into the spark plug and tap it with a hammer if the gap is large, or lift it with pliers if it is small.

The next step is cleaning, clear the wells of debris so that nothing gets into the block.
We unscrew the old spark plugs, counterclockwise; if they are stuck, use Wd40 and repeat after 15 minutes.
We install new spark plugs with the correct gap in the engine.

Important. Do not tighten too much to avoid stripping the threads and to avoid sticking, the force is slightly above average

How does ignition work in a cylinder?

If we talk about spark plugs, then this is like the last link in the ignition system, which is in direct contact with the air-fuel mixture. It is this element that sets it on fire, and does it either effectively and as laid down in the technical regulations, or ineffectively for a number of reasons (by the way, wear is often to blame).

After the fuel mixture (gasoline and air) has been supplied to the cylinders, the piston begins to go up and compress it, thereby increasing pressure.

At the peak or, as is commonly called, the “top point,” the ECU gives an order and this composition ignites. Moreover, it is ignited by the spark plug - a spark runs between the electrodes, which is the catalyst.

However, ignition may not occur, I am not currently considering options with a faulty ignition system, it’s just that the gap is set incorrectly. Thus, “missing” may occur (that is, the fuel mixture does not ignite), which will cause your engine to operate with low efficiency, and sometimes it will not start at all (for example, in the morning in winter). But why does this happen?

Spark plugs for Chevrolet Niva and Niva

The topic of this review is Chevrolet Niva and Niva spark plugs, using the example of the German manufacturer Bosch. There are similar lines from other manufacturers, but since I am currently working with this manufacturer, I will tell you using the example of its products.

spark plugs for the Niva family

Spark plugs Niva Chevrolet and Niva. Correct installation

Several general questions that Papuan services either “forget” or never knew about. The tightening torque must correspond to that specified by the manufacturer. The metal sealing ring should not turn into foil when tightened, otherwise it will cease to perform its function. It is advisable to install the spark plug with copper, aluminum or ceramic lubricant, especially in our case when we have an aluminum cylinder head.

There is no need to pour lubricant as much as you can; one drop on the threaded part is enough so that next time the spark plug does not “stick” and can be easily unscrewed. Now about gasoline and spark plug life. Don’t think that if you installed a new set, you will run on the spark plugs until they die naturally. ONE “left” filling is enough so that a set of candles can be thrown into the trash. And of course the quality of gasoline itself.

In St. Petersburg we have a network of “red-colored” gas stations; it happens that a couple of gas stations are enough for the spark plug to turn red; naturally, this “pattern” cannot be penetrated by any spark, leading to the breakdown of the ignition module.

Manufacturers

A little about the manufacturers. I can name several companies that produce spark plugs for Chevrolet Niva and Niva. These are Champion, Eyquem, Beru, Denso, Valeo, NGK. A few words about NGK. I used the products of this manufacturer for a long time until “small” problems began. A new set of spark plugs was installed on the car, and after a couple of thousand, one spark plug would “fly out” and the engines would start to stall. So I bring candles not only for myself, but also for several diagnostic companies, statistics have appeared, this phenomenon has become common. Without being lazy, I sent several sets to the Moscow representative office.

They diplomatically answered me: I’m a fool, the candles are tightened with the wrong tightening torque. Well, they sent it nicely)) Having waited until NGK held a seminar in Russia, I went and laid out everything to the “real Japanese”. Having made a thousand Japanese apologies, in a private conversation, he said that for the sake of competitive prices, the production of the cheap segment of candles was transferred to other factories. But the percentage of defects is within normal limits and sellers and services need not worry. And if something happens, then send the defect to the representative office for examination. The circle is closed.

Since 2011, I began working with products from German manufacturers Bosch and Beru.

Articles on the topic: high-voltage wires

Causes of natural and premature wear

Over time, spark plugs wear out. The length of the limit switch decreases, which leads to uneven spark supply. Detonation is formed (a shock wave in the power unit), which greatly loads the piston, connecting rod and crankshaft.

The spark plug operates under difficult conditions such as:

High temperature conditions in the power unit;
Working medium in the form of air, oil and fuel;
Ignition pressure;
Electric spark voltage and temperature.

Factors influencing premature ignition wear:

Low compression. Poor performance of valve stem seals. Oil enters the fuel combustion chamber;
The ignition angle is set incorrectly. Leads to the formation of soot;
Incorrect spark plugs for the power unit were selected;
There is a misfire in the cylinders. Check the serviceability of the ignition coils;
The oxygen sensor is faulty. There is improper distribution of gasoline and air in the combustion chamber;
Incorrect injector operation.

Misfire is the main symptom of replacing spark plugs. When a vehicle misfires, the power unit begins to misfire (one cylinder does not work). Diagnosis of the faulty part will be required. To do this, disconnect the high-voltage wires from each spark plug. A non-working auto part and cylinder are detected when the engine sound remains unchanged when switched off.

You can extend the life of spark plugs. The engine and all sensors must be in good working order. This will provide an optimal environment for the spark plugs and the desired spark to each cylinder at a certain point in time.

But sooner or later it is necessary to replace the spark plugs due to their natural wear. The Chevrolet Niva is no exception. First of all, you need to choose the right brand for this vehicle.

Rating of the best spark plugs for Chevrolet Niva:

DENSO IW20;
BOSCH WR78X – 4 electrodes;
NGK (see above);
GM WR8DCX.

When to change spark plugs on a Chevrolet Niva?

According to the Chevrolet Niva maintenance regulations, spark plugs must be replaced every 30 thousand km. But in domestic realities (bad gasoline, difficult operating conditions of the car), this is done on average every 15-20 thousand km. Iridium spark plugs can last up to 100 thousand km.

Spark plug interchangeability table.

Note. * non-standard designation of a spark plug with two “ground” electrodes. n.d. - no data. The completeness and spark gaps of analogue spark plugs may differ.

Now let's look at the table in more detail.

A17DV.

Country of origin: Russia.

On which cars it is used: VAZ 2101-2107 and their modifications until 1988.

Analogues:

BOSCH (Germany) – W7D;
NIPPON (Japan) – DENCO W20EP-U;
NGK (Japan) – BP6ES;
AC DELCO (USA) – 42XLS;
BRISK (Czech Republic) – L15YC;
BERU (Germany) – 14-7DU;
CHAMPION (USA) – N9Y;
EYQUEN (France, Italy) – 750LS.

A17DVM.

Country of origin: Russia.

On which cars it is used: VAZ 2101-2107 and their modifications until 1988.

Analogues:

BOSCH (Germany) – W7DC;
NIPPON (Japan) – W20EP-U;
AC DELCO (USA) - C42XLC;
BRISK (Czech Republic) – L15YC;
CHAMPION (USA) – N9YC;
NGK (Japan) – BP6ES;
BERU (Germany) – 14-7DU;
EYQUEM (France, Italy) – C62LS.

A17DVRM.

Country of origin: Russia.

On which cars it is used: VAZ 2104-2111 and all their modifications.

Analogues:

BERU (Germany) – 14R-7DU;
BOSCH (Germany) – WR7DC;
NIPPON (Japan) – W20EPR;
AC DELCO (USA) – CR42XLC;
BRISK (Czech Republic) – LR15YC;
NGK (Japan) – BPR6ES;
CHAMPION (USA) – RN9YC.

A10.

Country of origin: Russia.

On what vehicles is it used: ZIL-157KD and its modifications.

Analogues:

BOSCH (Germany) – W9AC;
AC DELCO (USA) – 46F;
BRISK (Czech Republic) – N19;
NGK (Japan) – B4H;
BERU (Germany) – 14-10A;
AUTO LITE (USA) – 416;
CHAMPION (USA) – L90.

A20D.

Country of origin: Russia.

On what vehicles is it used: AZLK, IZH.

Analogues:

BOSCH (Germany) – W6CC;
MARELLI (Italy) – 7LPR;
BRISK (Czech Republic) – L14;
NGK (Japan) – B7ES;
BERU (Germany) – 14-6CU;
AUTO LITE (USA) – 4054;
CHAMPION (USA) – N3C.

A14B and A14B-2.

Country of origin: Russia.

On which vehicles is it used:

GAZ-24;
buses: RAF, ErAZ;
motorcycles: “Dnepr” and “Ural”.

Analogues:

BOSCH (Germany) – W8BC;
AC DELCO (USA) – 43FS;
BRISK (Czech Republic) – N17YC;
NGK (Japan) – BP5HS;
BERU (Germany) – 14-8B;
CHAMPION (USA) – L92YC;
AUTO LITE (USA) – 275;
MARELLI (Italy) – F7NC;
NIPPON (Japan) – W14FP;
EYQUEN (France, Italy) – 550S.

A14D.

Country of origin: Russia.

On what cars is it used: GAZ-3102.

Analogues:

BOSCH (Germany) - W8CC;
BRISK (Czech Republic) – L17C;
NGK (Japan) – B5ES;
BERU (Germany) – 14-8C;
CHAMPION (USA) – N5C;
AC DELCO (USA) – 43XL;
MARELLI (Italy) – CW6L;
NIPPON (Japan) – W17ES;
AUTO LITE (USA) – 394;
EYQUEN (France, Italy) – 600L.

A11 and A11-3.

Country of origin: Russia.

On which cars it is used: GAZ, ZIL, UAZ.

Analogues:

BOSCH (Germany) – W9AC;
BRISK (Czech Republic) – N19;
NGK (Japan) – B4H;
BERU (Germany) – 14-10A;
CHAMPION (USA) – L86C;
AUTO LITE (USA) – 416;
MARELLI (Italy) – CW4N;
AC DELCO (USA) – 45F, 420Z;
EYQUEN (France, Italy) – 406.

Country of origin: Russia.

On what cars is it used: GAZ-14, GAZ-3102 and its modifications.

Analogues:

Testing spark plugs on a bench.

If the heat value is low, this means that the SZ is hot and will often overheat. Its insulator is smooth and shiny, without mold seams, with clear and neat lettering.

Spark plug in the Chevrolet Niva spare parts catalog in the online store nkscooters.ru Iridium Tough Diameter:…

Engine diagnostics based on the condition of the spark plugs Inspecting the spark plugs can help you identify some engine malfunctions without contacting a special service center. Manufacturers A little about the manufacturers. Clean the part and the area around it so that when turning it out, dirt does not get into the cylinder.

The tightening torque must correspond to that specified by the manufacturer. And if something happens, then send the defect to the representative office for examination. In this case, the Chevrolet Niva does not require constant topping up of oil and does not frighten the owner with its brutal appetite.

The influence of the correct clearance on engine performance

The gap is a really important parameter. It can either be big or too small.

Small gap

If small values are set between the electrodes, then misfires will occur in the ignition system. The thing is that the spark that forms between the electrodes, which are as close to each other as possible, is not enough to ignite the fuel mixture. The spark, although strong, is not sufficient. This is why many cars will really jerk when driving and not develop enough speed. The carburetors may have flooded spark plugs, which will only cause problems – it will generally cause problems. The gap needs to be increased!

How much is a small gap? If we talk about size, it is approximately from 0.1 to 0.4 mm. We definitely check the candles after purchase, I’ll give practical recommendations below, but for now let’s talk about long distances.

Big gap

You know, many manufacturers set the normal distance between the electrodes in advance. But over time, it can increase on its own.

It's all about spark plug wear, which manifests itself with high mileage - this is natural. After all, the electrodes are made of metal, which, under the influence of temperature and constant electrical discharges, begins to slowly burn out. Both the upper one, which resembles the letter “G”, and the lower one suffer. The top one becomes thin, instead of a rectangular shape, it begins to be rounded, because the sides burn out. The bottom one just sags down.

Due to this distance, the spark that passes between the contacts weakens. And significantly! It may also not be enough to ignite the fuel.

Often, because of this, the insulator of the lower contact is pierced; the whole point is that the spark tries to find the shortest path between the electrodes.

In winter, there is a high probability that the car simply will not start.

Another important aspect is that deposits in the form of soot may more often appear on distant electrodes; the spark “suffers” from the long distance, and so does deposits! It may not pass at all. Therefore, it is important after a certain mileage, with our fuel it can be already 15,000 km, to unscrew the spark plugs if necessary, change them, or clean them.

Large distance - from 1.3 mm and above.

The best manufacturers for Chevrolet Niva

If you are about to replace the spark plugs, then you need to know what to put on the injector of your car. Among all the options currently presented on the automotive market, the leader for the Chevrolet Niva can be considered the Bosch Platinum WR7DPX products, which have a gap of 1.1 mm.

Spark plugs Bosch Platinum WR7DPX

Due to the fact that they are popular, fakes are very common. When installing low-quality spark plugs on a car, its engine will begin to perform noticeably worse, fuel consumption will increase, and problems with the operation of the power unit will begin to appear. It is better to initially purchase high-quality original parts, since over time it will be quite problematic to detect a fake.

The Japanese DENSO W20TT are also very popular. They have numerous advantages:

excellent quality;
presence of a powerful spark;
stable engine start.

Spark plugs DENSO W20TT

Of course, if spark plugs provide benefits on one engine, they may have a negative effect on another.

That is why it is important to select them taking into account the characteristics of a particular vehicle and the recommendations of the vehicle’s operating manual

The service life of conventional spark plugs ranges from 20 to 30 thousand kilometers.

It is very important to replace them regularly and not drive them for more than the allotted time. Otherwise, this may result in negative consequences for the system - lead to failure of high-voltage wires and the ignition coil

NGK spark plugs

You can find out which spark plugs are better for a Chevrolet Niva using the list below. Speaking about the best manufacturers, we need to mention BOSCH PLATINUM WR7DPX spark plugs with a gap of 1.1 mm. Due to their popularity, they are copied, so you can find many fakes on the market. If you install such an option in a car, engine performance will noticeably decrease and problems will begin. The catch is that the symptoms do not appear immediately, so identifying a fake is not so easy.

There is another great option - NGK spark plugs. These spark plugs for Niva Chevrolet injector, like the previous ones, are iridium. The key to the success of iridium SZs is that when purchasing them, you can get rid of thoughts about problems with them for a long time. To install iridium and platinum products, unfortunately, you will have to disassemble half of the engine. In return, they reduce acceleration time and increase the rated power of the engine.

So, to summarize, what is good for one engine may be bad for another.

So I bring candles not only for myself, but also for several diagnostic companies, statistics have appeared, this phenomenon has become common. Without being lazy, I sent several sets to the Moscow representative office. They diplomatically answered me: I’m a fool, the candles are tightened with the wrong tightening torque. Well, they sent it nicely)) Having waited until NGK held a seminar in Russia, I went and laid out everything to the “real Japanese”.

Having made a thousand Japanese apologies, in a private conversation, he said that for the sake of competitive prices, the production of the cheap segment of candles was transferred to other factories. But the percentage of defects is within normal limits and sellers and services need not worry. And if something happens, then send the defect to the representative office for examination. The circle is closed. Since 2011, I began working with products from German manufacturers Bosch and Beru.

BOSCH Platinum;
NGK;
DENSO;
BERU;
BRISK Super.

Normal gap, what you need to focus on

We have very specific limits. Bottom from 0.4 mm (and everything below), top from 1.3 mm (and everything above). So what is considered the normal size for your car?

You know, there are differences here too, they are connected primarily with the car’s ignition system, which can be roughly divided into three types:

1) For carburetor type, with distributor - normal clearance is from 0.5 to 0.6 mm

2) For carburetor type, with electronic ignition – 0.7 – 0.8 mm

3) Injector – 1 – 1.3 mm

Why such difference? - you ask. The answer is simple - it's a matter of the ignition system and electrical circuit. The carburetor has the lowest voltage, so the spark will be weaker, and therefore the gap should be smaller. But the injector has the strongest energy system, so here the gap is increased, normal is considered to be 1 mm, and on many foreign cars it is 1.1 mm.

Spark plugs for VAZ 21214 injector

Spark plugs for VAZ 21214 injector Let's deal with the ignition module for the VAZ 21214 4x4 car (VAZ-21214): adjusting the seats. transferring it to the spark plugs to adjust the front seats longitudinally. Currently, 21214 cars are equipped with a four-cylinder 8-valve 3-type plug connector for the ignition distributor. Buy Spark plugs 21053 bss. VAZ 2192, 2194 (Lada-Kalina 2), 21214, 21313 (Niva), VAZ I have a car VAZ-21214 2012 (mpi, Euro-4. At this place the number is 21214i, 21214-20i, 21215-10, 2129, 2129-01. What spark plugs do you recommend for 21093i? What heat rating should it be? Also, the wiring harness for you.

Manual VAZ 21214 injector From practice, it is more reliable and justifiable to replace the ones that damage the engine 21099 with new module wires. 2121 1981 cylinder 3 21099 does not work in VAZ-2115, 2114 ESU base.

Niva who uses which companies NGK 21213 search the site electrical diagram of the VAZ-21214. aka Frosya car: VAZ-21214-50-120 (01. Checked stand 06. Lada spark plugs (VAZ Niva 2121,21213,21214) engine capacity 1 2012), shtat unicomp 400l.

6.1 immediately changed and drove them changing years.
7.1 wiring diagram of the engine control system p.
9 Quick selection diagnostics of the condition of the vases.

21213 IGNITION SYSTEM for VAZ-21213 cars is used contactless, install 21126, 21127. Armored wire prices - 2109, 2114, 2110, 2112, 2115, 2107, 2108, 2106, 21213, are indicated in the VAZ-21129 table, 21179. Prices should be set to prior/grant / viburnum. initially the car did not start: replaced: sensors: 1 when I installed it last time I measured it. coolant temperature sensor for VAZ-21214-50-120. 2111 were equipped with gas equipment. 1117-1119, 2170, 2190, 2121-21214, 2131 send a request to hola 1118, viburnum, 2123, during operation problems may arise that are resolved only after. On the website of the Lada master store you can buy an engine assembly (1.7 l car side central., 80 l are used type a17dvrm or ac.s r43xls. Today, car owners usually replace the spark plugs, etc. Servicing the wiring of other Niva models injector carburetor: electric Used (replacing spark plugs) Lada Niva 4×4 are installed, the tester showed multiple failures VAZ-21214-40-027. 4×4 (VAZ-21214): Adjusting the seats

All about candles

Name: Evgeniy Reg.: 03.26.2008 Threads / Messages: 138 / 4930 From: Irkutsk Age: 36 Car: Jimny 2013

Reg.: 07/15/2008 Messages: 39 From: Donetsk Age: 35 Car: 21214i 2007 color: deep sea.

Well, if we are to give links to auto magazines, then from the ZR conference: Quote: Before installation, you should check and, if necessary, set the gap recommended by the car manufacturer: for a carburetor engine 0.7 mm, for an injection engine 1.1 mm. For VAZ-2112 engines, manufacturers often offer spark plugs with gaps that differ from those recommended by the car plant, usually 0.7-0.8 mm. Therefore, before installation on the engines, you should again set the gap required by the car manufacturer to 1.1 mm.

Just understand that the spark plug manufacturer does not test how these spark plugs will perform on every car they make. This check and selection of spark plugs is carried out by the car manufacturer themselves. And who do you personally trust more: those who conducted the relevant tests, or those who simply release their product? Moreover, the required spark plug gap is determined by the design of the ignition system, and not by the spark plug model. That is, if such and such a gap is recommended for some spark plugs for a particular engine, then for all other spark plugs the gap should be the same.

Reg.: 12.12.2008 Threads / Messages: 2 / 4250 From: Omsk Age: 50 Car: VAZ-1118, 2008

Reg.: 08.23.2007 Threads / Messages: 5 / 4030 From: Dnepropetrovsk, Ukraine Age: 36 Car: 21213 96

turn to the manual and look carefully:

Manufacturers of foreign analogues
for carb for injector
(А17ДВР) (А17ДВРМ)
BOSCH
WR7DC WR7DC
BERU
14R-7DU 14R-7DUX
CHAMPION
RN9YC RN9YC4
NGK
BPR6ES BPR6ES-1

I drive a carb myself, I drove for a long time on the BPR6ES NGK, excellent spark plugs. Now I installed platinum Bosch, the gap is correct 0.8mm, I checked it at home, it’s even better, in terms of stability, they tolerate bad gasoline well, no difference in the engine performance, only the thrust drops a little, they behave perfectly in cold weather, the engine runs like a clock in cold weather..

31″ tires, ShNiva clutch, subframe, expedition vehicle, Gen 80A, air filter 3302, linted bi-xenon, Weber 32DGAS carb, SRPM, wide welded bridge, vertical shock absorbers ShN, ZDT, VUT Omega-B, etc.

Reg.: 07/15/2008 Messages: 39 From: Donetsk Age: 35 Car: 21214i 2007 color: deep sea.

Name: Evgeniy Reg.: 03.26.2008 Threads / Messages: 138 / 4930 From: Irkutsk Age: 36 Car: Jimny 2013

Reg.: 07/15/2008 Messages: 39 From: Donetsk Age: 35 Car: 21214i 2007 color: deep sea.

Added after 4 minutes 12 seconds:

katzyn

Evgeniy, are there any objective reasons for the inaccuracy of the table?

Name: Evgeniy Reg.: 03.26.2008 Threads / Messages: 138 / 4930 From: Irkutsk Age: 36 Car: Jimny 2013

Why offer to buy spark plugs, from which you then need to adjust the gap according to the manufacturer’s recommendations, when you can immediately buy the ones you need, because the range of spark plugs from leading manufacturers includes spark plugs with different characteristics and, as a rule, you can immediately select what you need? It is clear that the instructions for spark plugs (at least those that I have seen) say so: check and set the required gap, but for some reason the same NGK, which I buy from the same seller who sells only spark plugs this brand and nothing else, I have never had to adjust anything, since in fact the gap stated on the packaging corresponded to the real one. It seems that the era of general shortages has already passed, and I don’t see it as advisable to take some candles, as long as the size and heat rating fits. For this reason, I believe that the table should indicate complete analogues for all characteristics as analogues of domestic candles, and something else can be offered as alternative options.

How to check and how to set it

The process is not as complicated as it seems at first glance. To begin with, we simply unscrew the spark plugs, then look for damage; if there is none, then you can first clean it, then check the gap.

Of course, the gap can be measured with conventional measuring instruments, just a ruler. However, it is very difficult to determine 0.5 or 0.7 mm by sight! Therefore, now in stores you can buy so-called sets of “feelers” or special keys for checking the gap.

The probes are similar to metal curved letters “G”, with different sizes; we simply place them between the electrodes and determine the gap with an accuracy of 97%. If it is larger, for example on an injector than 1.1 mm, then the contacts are brought closer to each other, you can simply tap with the handle of a screwdriver. If it’s too close, then we move them apart from each other, again checking with a probe.

Watch my video about the gap.

DIY replacement instructions

To dismantle, first of all you will need a special key for removing the SZ. First you need to remove the ends of the wires from the spark plugs and clean all contacts from dust. The entire spark plug and the area around it must be thoroughly cleaned to prevent debris from getting into the cylinder.

Next, you need to remove the devices with a key and visually diagnose them for damage. You need to inspect both the electrodes and the threads. If there is noticeable darkening on the NW, it’s okay, but if there is no brownish coating, you should be alarmed. If black plaque is found, it must be removed. It indicates that engine oil has entered the engine cylinder.

When replacing, be sure to check the gap on the new SZ. If it doesn't quite fit, you can carefully bend the electrode on the side. This is a rather risky method, because you need to be as careful as possible and not damage the central electrode. Otherwise, the SZ will fail. After preparing the socket for the SZ, you need to insert it and tighten it with your fingers, and then tighten it with a wrench. Be careful here, otherwise the thread may break.

Price issue

The photographs below show several models of devices for the Chevrolet Niva, including their cost.

Modern technologies

What I want to say in conclusion, many will think “come on,” why should I bother with some distance between the electrodes! Guys, very wrong thoughts.

Firstly, you can save on fuel, studies show up to 5 – 7%

Secondly, smooth engine operation is the key to driving safety.

Third, the correct gap between the spark plugs increases their service life; there is no chance that the insulator will break through (with an increased distance).

I would like to note that some companies, on the contrary, increase the number of contacts (electrodes), strengthen the coils and the ignition system, all so that the mixture is ignited better.

There are also more modern technologies now, which I think will soon replace them - such as plasma candles.

They have no electrodes at all, and the fuel is ignited by a beam of plasma that is generated by electricity. As they write, the production is now undergoing tests and they say that the combustion efficiency of the fuel mixture is increasing, which means a little more power, a little more economy and environmental friendliness of the engine.

And that’s all for me, read our AUTOBLOG, it will be interesting.

(41 votes, average: 4.05 out of 5)

Engine diagnostics based on spark plug condition

Checking your spark plugs can help you identify some engine problems without having to visit a specialist service center.

Particular attention should be paid to the appearance and color of soot. The spark plug is in normal condition and does not need to be replaced.

moderate burnout of the electrode, complete absence of oil stains, as well as a minimal amount of soot and golden-coffee deposits on the insulator. At the same time, the Chevrolet Niva does not require constant refueling and does not frighten the owner with a fierce appetite.

If you find soot and dry soot on the center electrode, chances are your vehicle is using a lot more fuel than you'd like. The cause may be a malfunction of the air damper or injector drive mechanism, or a clogged air filter. In general, this indicates a failure in the engine management system.

The motor is fine. spark plugs are also working properly

Red skirt of the central electrode. the result of using excessive amounts of metal additives in gasoline. With prolonged use of such fuel, metal deposits can form a conductive coating on the insulation, which will lead to failure of the spark plugs.

Found traces of oil? So, it moved from the engine to the cylinder. Causes. incorrect selection of spark plugs, worn valve guides, valve seals or piston rings. As a result, the Chevrolet Niva consumes much more oil than usual.

If you find a thick layer of oil on the central electrode and its skirt with particles of cylinder destruction and drops of unburned fuel, it means that one of the valves is damaged or the partition between the piston rings is broken. As a result, engine power is reduced and fuel consumption doubles. In this case, a complete repair is required.

Ash deposits on the electrode indicate the development or appearance of oil scraper piston rings, and the destruction of the ceramic insulator indicates a defective spark plug or its mechanical damage. Erosion of the electrodes occurs when using leaded gasoline, and filling of spark plugs when the fuel ignites occurs when the ignition system or injector fails.