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.
Replacing spark plugs
We remove the spare wheel.
Remove the wire tip from the spark plug.
Using a high 21mm socket (or a spark plug wrench), remove the spark plug. |
Screw the spark plug into the threaded hole of the cylinder head...
...first baiting it by hand...
...and then tighten it with a spark plug wrench to the prescribed torque. (Tightening torque of spark plugs: 30.67-39.0 N.m (3.13-3.99 kgf.m)
Requirements for modern spark plugs
What should a candle do?
A spark plug has many important tasks: it must ensure combustion, make a reliable cold start possible, and work uninterruptedly throughout its service life. In addition, it must satisfy many precisely defined requirements.
Breakdown resistance. Modern ignition systems produce high voltages - up to 40,000 volts. They should not lead to breakdowns on the insulator.
Breakdown resistance. During the combustion process, fuel and oils produce soot, oil deposits and ash, which are deposited on the electrodes. These particles conduct electricity under certain thermal conditions. However, a short circuit should not occur across the insulator.
Pressure resistance. Periodically, high pressure arises in the combustion chamber, which must be compensated in front of the spark plugs, without losing seal.
Reliable installation. Ceramics must withstand the tightening forces applied to them during installation.
Flame resistant. The insulator leg protruding into the combustion chamber must withstand heating to red heat, as well as chemical changes occurring in the combustion chamber.
Soot resistance. Particles arising in the fuel, which settle on the insulator leg as carbon deposits, should not change the ignition characteristics.
Temperature resistance. The spark plug, heated during operation, is cooled by the sucked-in air-fuel mixture, which is a thermal shock that the insulator must withstand.
Thermal conductivity. The spark plug must conduct the received heat well and quickly to the cylinder head.
Tact - suction. Gas temperature approx. 100 °C, gas pressure 0.3 - 0.6 Bar
Tact - compression. Gas temperature approx. 300-600 °C, gas pressure 8-15 Bar. The mixture shrinks to a small fraction of its former size.
Tact is work. Gas temperature approx. 2000-3000 OS, gas pressure 30 - 50 Bar. Ignition voltage approx. 40000 Volts. The mixture ignites. The combustible gas performs mechanical work on the piston
Tact - release. Gas temperature approx. 800-1000 °C, gas pressure 1 - 5 Bar. Pushing out unburned hydrocarbon
Spark plug electrodes and materials for their execution
They consist mainly of a nickel alloy with a copper core and show good heat dissipation performance and high corrosion resistance.
Silver has high electrical and thermal conductivity with very high chemical resistance.
High-tech material has very good thermal conductivity and high corrosion resistance
The material used as reinforcement shows good resistance to corrosion and burning. Application areas: single platinum (only the central electrode is reinforced) or double platinum (side and central electrodes). Of the 1.3 billion spark plugs supplied annually to the automotive industry, 1/3 are equipped with electrodes made of precious metals.
Video
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.
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.
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.
Top 5. NGK 2268 BPR6E
Rating (2021): 4.32
High build quality NGK 2268 spark plugs are of optimal quality, which determines the almost complete absence of defects in retail sales and allows us to guarantee flawless operation throughout the declared service life.
- Characteristics
Average price: 151 rub.
- Country: Japan
- Electrode material: nickel
- Heat number: 6
- Gap: 1.1mm
- Resource: 30000 km
Installing these spark plugs on a Niva Chevrolet 1.7 injector will solve not only problems with starting (BPR6E easily ignite even a lean mixture), but will also reduce the load on the high-voltage module, which will have a positive effect on its service life. The average heat rating optimally matches the operating parameters of the Niva Chevrolet engine, ensuring the performance of the spark plug, and there are practically no defects among original products. Also, judging by the reviews of the owners, a reliable insulator and high-quality assembly negates the premature failure of the NGK 2268. Buyers complain about the lack of protection of originality - under the guise of a brand, you can often purchase a counterfeit product on the market.
Advantages and disadvantages
- Durability
- Attractive price
- Production quality
- Lack of protection against counterfeiting
See also:
- 5 best brake pads for Niva Chevrolet
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.
Candles. What candles are best to use?
Candles. What candles are best to use?
Post by Micah » 08 Oct 2010, 23:16
Re: Candles
Post by Therion » 08 Oct 2010, 23:18
Re: Candles
Post by Micah » 08 Oct 2010, 23:21
Re: Candles
Post by hohol007 » 08 Oct 2010, 23:25
Re: Candles
Post by Bladerunner » 08 Oct 2010, 23:27
Connecting front-wheel drive in a Niva is not so much a technical question as it is a philosophical one. (c) Vovchik
Re: Candles
Post by ALK » 08 Oct 2010, 23:37
Who knows what's going on behind the fence of the zoo? ©
Re: Candles
Post by Dimych » 09 Oct 2010, 00:02
Re: Candles
Post by Portada » 09 Oct 2010, 00:05
Re: Candles
Post by Dimych » 09 Oct 2010, 00:14
Re: Candles
Post by ALK » 09 Oct 2010, 00:39
Is it okay that zebin means “gasoline” in English? but from candles with the inscription “GAZ” I would run headlong
I will never believe that a “sliding” spark with a serviceable spark plug (without soot or defects) occurs.. Landsberg’s physics textbook
Who knows what's going on behind the fence of the zoo? ©
Re: Candles
Post by SHVV » 10 Oct 2010, 00:10
Re: Candles
Post by simbir » 10 Oct 2010, 18:00
Re: Candles
Posted by kayotte » Oct 13, 2010 10:03 am
Expedition vehicle, subframe, ShN clutch, Weber synchronous carb, 31 tires, SRPM, reinforcement. in general, any small tuning.
Re: Candles
Post by Timurych » November 15, 2010, 20:01
Top 4. DENSO 4604 K20TT
Rating (2021): 4.35
The best combination of price and quality DENSO 4604 are distinguished by impeccable build quality and reliability in operation under heavy loads. The high heat rating (20), coupled with a fair price, demonstrates the best balance of all product characteristics among the presented participants.
- Characteristics
Average price: 204 rub.
- Country: Japan
- Electrode material: nickel
- Heat number: 20
- Gap: 1.0mm
- Resource: 30000 km
One of the best examples of spark plugs for the 1.7 injector installed in the Chevrolet Niva is offered by the Japanese company DENSO. Despite the central electrode made of a nickel alloy (this decision of the developers had a positive effect on the cost), the designers managed to achieve a high heat rating. Thanks to this, the spark plug does not overheat, works reliably at high speeds and long distances, and the optimal gap gives an excellent spark when starting. Installed in Niva Chevrolet, they fully maintain their service life, remaining operational much longer than the replacement interval. The only drawback is that you can buy a fake that imitates the brand.
Advantages and disadvantages
- Reliable sparking
- Load resistance
- Good safety margin
- There are fakes on the market
See also:
- 15 Best Spark Plugs
Top 1. BOSCH Super Plus 0 242 235 707
Rating (2021): 4.64
11 reviews from resources taken into account: Reviewer
Popular choice of buyers Due to their characteristics and extended service life, as well as the quality of assembly, components and balanced price, BOSCH Super Plus spark plugs are the most popular choice of Niva Chevrolet owners.
- Characteristics
Average price: 144 rub.
- Country: Germany
- Electrode material: nickel/yttrium
- Heat number: 7
- Gap: 1.1mm
- Resource: 50000 km
Being an analogue of the original spark plugs for the Chevrolet Niva (1.7 injector), along with efficiency, Super Plus provides an excellent spark in any engine operating mode. Performance benefits are provided by a nickel electrode doped with yttrium. Rare earth material, coupled with impeccable build quality, guarantees reliable ignition and increases service life, showing resistance to corrosion processes. Considering the features of the product and not the highest price, BOSCH Super Plus enjoys well-deserved popularity in the market, including among Niva Chevrolet owners. By giving preference to trusted sellers, you can avoid purchasing counterfeits.
