Which spark plugs are best for Niva 21214

Replacing spark plugs and setting the gap

For stable operation of the Niva 2121, 21213, 21214 injection and carburetor engines, it is necessary to change the spark plugs on time, since they are an integral important part of the engine that ignite the combustible mixture.

The engine starts with difficulty, the starter turns for a long time.
The engine jerks and stalls
Power decreases
Engine speed fluctuates
Fuel consumption increases

Denso Iridium Power.
Bosch platinum
BERU Ultra X
BERU Ultra X Platin
BERU UXT6
DENSO W20TT
Finwhale 510
A17DVR analogue from NGK BPR6ES
A 17 DVRM analogue from NGK BPR6ES-1

There are more positive reviews, of course, in the more expensive price category, as well as with platinum or iridium rods , which exceed the service life of simple ones by 70-80%, and need to be changed not after 20 but after 100 thousand km. which increases service life by 5 times.

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

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.

If there is black soot deposits on the core, this means that the fuel you are using is of poor quality, or oil is getting into the combustion chamber, this may be due to worn piston rings, valve guides, oil seals.
If soot covers the core together with the body, this indicates a disruption in the supply of the fuel-air mixture, we recommend checking the carburetor settings and changing the air filter.
If the core is white, the ignition adjustment is incorrect.
A melted core is the reason for the overheating of the car, so if your Niva is boiling over a couple of times, we recommend checking the spark plugs and paying attention to whether the engine is behaving differently, this happens, of course, extremely rarely, but forewarned is forearmed.

Video

Service

To keep the spark plugs in good working order for as long as possible, service them every 10,000 thousand km, clean them with a brush and adjust the gap if necessary.

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.

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

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Post by T-Rex » 04 Dec 2012, 13:36

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Post by Sash » 04 Dec 2012, 16:12

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Post by Vladimir55 » 04 Dec 2012, 19:28

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Post by Sunny » 05 Dec 2012, 06:35

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Post by Sash » 05 Dec 2012, 09:20

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Post by ParaLanik » 05 Dec 2012, 09:57

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Post by Sunny » 05 Dec 2012, 12:54

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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

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Post by AMPER » 05 Dec 2012, 17:54

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Post by Slava N » 15 Dec 2012, 18:40

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

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Post by AMPER » Dec 15, 2012, 7:15 pm

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Post by Sunny » Dec 15, 2012, 7:24 pm

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Post by Slava N » 15 Dec 2012, 20:35

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

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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)

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.

Niva Chevrolet

Replacing spark plugs in a Niva Chevrolet is fully covered in a video from the Garazhnik channel.

To carry out diagnostics, you will need a special wrench for turning it out. Please note that it is better to inspect the spark plugs after the engine has been running for a long time, for example, after a long trip on a country highway.

If you have never replaced this small but important part in a Chevy Niva before, follow these simple tips

A spark plug that produces the right spark

Remove the high-voltage wire tips from the spark plugs.
Clean the part and the area around it so that when turning it out, dirt does not get into the cylinder.
Using a wrench, remove the spark plugs from the cylinder head.
Examine the candles. Based on the degree of carbon deposits, its color and character, you can diagnose the engine and determine whether it is worth changing the part, buying gasoline at another gas station, or whether it is time to repair the cylinder head.
Use a round feeler gauge to check the gap between the electrodes. It should be 1-1.15 mm.
If necessary, bend the side electrode and adjust the gap between the electrodes. Be careful: under no circumstances should the central electrode be bent! This can lead to damage to the insulator and inevitable failure of the spark plug.
Reinstall the candles. To do this, first screw them all the way by hand, and then tighten them with a wrench. Do not overdo it!

Signs that you need to replace spark plugs on a Chevrolet Niva:

The power unit starts with difficulty. Long cranking of the starter is required;
The feeling that the engine is not working at full strength;
The characteristic sound of an engine running on three cylinders;
Increased fuel consumption;
Low power.

Spark plugs NGK for Niva 21214

The 1.7 liter injection engine with an electronic control system (ECM) of the Niva 21214 allows the installation of some models of NGK spark plugs.
B PR6ES-11 4824

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

Thread diameter - 14 mm

Thread length - 19 mm

The gap between the electrodes is 1.1 mm

Resistance - 5 KOhm

BPR6EGP-11 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 1.1 mm

Resistance - 5 KOhm

BPR6E V-Line #13 5339

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 1.1 mm

Resistance - 5 KOhm

BPR6EIX-11 3903

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 1.1 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.”

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.

Details about choosing spark plugs for Chevrolet Niva

It is recommended to replace it every 30 thousand, and the recommended imported analogue is the BRISK Super LR15YC spark plug, or LR17YC - this is for winter. However, in terms of price/quality ratio, there are now more interesting options. At one time, one authoritative publication compared 9 replacement options. But the reader will not immediately know which spark plugs work best on a Chevrolet Niva: if you buy the “best” BOSCH Platinum spark plugs, cold starts will become problematic.

We watch a video with conflicting reviews about NGK brand products.

What has already been tried

Let's consider 4 options.

"Brisky" after the first 15,000 km

We will only name the “cons”:

BOSCH Platinum WR7DPX - starts more difficult than even with the A17DVRM, but then the engine works better than with others;
BRISK Super LR15YC – durability will be 15-20 thousand, not 30;
BOSCH Yttrium WR7DCX - something between the first two;
A17DVRM - depending on your luck. It may fail at 5 thousand, but only one spark plug (not all).

There is a hypothesis that Platinum is Yttrium, which passed all the tests. This means that with “good” spark plugs our engine starts worse than with “regular” ones. Why not.

A good option from GM is WR8DCX+ spark plugs, that is, an analogue of A17DVRM. Rejection almost never occurs, and the start is better than with A17.

The point of the first paragraph is for the reader to understand: general recommendations are one thing, but the “2123” motor is something completely different.

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.

What is good for the 1.6 engine?

For the 2111 engine, the balance of forces looks like this:

BOSCH Platinum WR7DPX
"EZ" T17DVRM 1.0 (3 electrodes)
NGK BPR6ES-11
DENSO W20EPR-U11
Ween 121-1370/KMR6C11
BERU 14R-7DUX
BRISK Super LR15YC
Hola BH7CR11
"Citron" A17DVRM

Based on this list, it is impossible to say which spark plugs are best for the Chevrolet Niva. What works best for one 8 valve (1.6) may not work for another (1.7).

The products of the Japanese brand DENSO were popular, but counterfeits began to appear, and now budget DENSO candles are no longer sold at all.

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).

We choose spark plugs consciously

All products from the DENSO IRIDIUM POWER series have proven themselves well. For the “2123” motor, one option is suitable, IW20, but IK20 is already a turnkey “16”. The cost of the kit can exceed 90 euros. Do we need it?

On the left is a BOSCH SUPER 4 spark plug.

Those who bought spark plugs with four electrodes are happy. We are talking about the BOSCH SUPER 4 series and the WR78X version. But here, again, you will have to overpay. And that’s why they often choose NGK products. We are talking about the V-line line and option number 13. We need V-line 13 BPR6ES-11 spark plugs. Their service life in the “2123” engine can reach up to 60 thousand.

V-line 13 kit

Brand "NGK" for Niva Chevrolet

Up to 90% of all NGK products are produced in Japan. And approximately 9% are products of the French branch. There are NGK factories in 14 other countries. Well, spark plugs for VAZ cars should be produced in France - the factory is located in the suburbs of Orleans.

The box usually has a barcode on it, so V-line candles, as it turns out, are made in Holland. The country code is 087.

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)

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.