Removing and replacing spark plugs Mitsubishi Lancer IX

Which candles are better?

The “life” of nickel or conventional spark-forming elements in domestic conditions is shortened for reasons beyond our control. It is enough to refuel with low-grade gasoline once, and replacing the spark plugs on the Mitsubishi Lancer 9 is guaranteed. Question: are more expensive iridium varieties, which are even recommended by the manufacturer (although for some reason only for 2-liter modifications of the Lancer 9), capable of withstanding low-quality fuel? After all, their declared resource is twice as large.

Often, one additive is added to Russian fuel, which kills any spark plugs. It increases the octane number. It contains a substance that leaves a harmful residue on the electrodes and causes a short circuit. Brick-colored deposits are visible to the naked eye.

The additive kills SZ (brick-colored deposits)

So what should we do? If the additive kills all spark plugs, what's the point of buying expensive iridium ones? For this reason, many people use conventional products at a low price. If problems arise with sparking, they replace them with new ones. Drivers of another category (there are fewer of them) buy expensive spark plugs, hoping for their high quality. In most cases, they do not fail; they wear out only after a decent mileage. It turns out that both options have their pros and cons.

Varieties

Without a good spark, normal operation of a car with a gasoline engine is unthinkable. The task of the SZ is simple - to convert the current supplied by the Mitsubishi Lancer battery into a spark. The latter must be of such strength that the mixture is easily ignited.

Spark plugs for Mitsubishi Lancer 10 and 9 are consumable material. They are subject to mandatory updating after a certain time. According to the manufacturer's recommendations - after 30-60 thousand kilometers. The specific resource depends on the spark generator model - iridium ones last longer (4 years).

Classification by electrode type

Models are classified according to different parameters. One of them involves a difference in the electrode.

1. Classic spark plugs consist of a main and an additional electrode. A spark jumps between them and ignites the gasoline. Such elements may have grooves of different shapes, increasing the size of the torch. There are also models with a protruding electrode; they can improve ignition, but are only suitable for certain power units.

2. Multi-electrode spark plugs are made using an improved design. Such elements may have several side electrodes, but only one central electrode. Multi-electrode varieties produce a more stable spark, improve engine performance and increase service life.

   
   Multielectrode SZ

3. Torch candles are not equipped with additional electrodes. Sparking occurs using a spherical resonator, measured and non-stop. They are considered the best options today, but given their cost, they are not very popular.

   
   Flare SZ

Difference in heat number

The manual for Lancer 9 cars states that you need to use elements with a heat index of 20 and higher. It is advisable to follow these tips.

Thus, the elements are classified as follows.

1. Hot ones, the indicator of which is 11-14.
2. Average – 17-19.
3. Cold - 20 and above.

Cold NW Denso

Video: description of spark plugs

Difference by material

Candles, or rather their electrodes, are made from different materials.

1. Iridium is the best in terms of resource. They can withstand 100,000 mileage if refueled with normal fuel. Iridium provides improved performance. Iridium models can be soldered with precious metals. Iridium SZ
2. Platinum or gold electrodes (there are also silver ones) are made using improved technology. It would be more correct to say that solderings made of precious metals are used, which significantly increase the service life. The reserve of these spark plugs is no less than 50-60 thousand kilometers.
3. Chrome-nickel varieties are the standard version. The price for them is low (approx. 100 rubles per piece). They develop their resource after 20-30 thousand kilometers.

Choosing spark plugs for Lancer 9 correctly: what do you need to know?

It is recommended to change stock spark plugs every 30,000 km, and devices with platinum or iridium tips - every 60,000 km, which will increase engine service life. Using a car with worn spark plugs worsens the ignition quality of the air-fuel liquid, which leads to the formation of soot and soot on the surface of the cylinder-piston group and negatively affects the integrity of the sealing gaskets.

It is advisable to select spark plugs for the Mitsubishi Lancer 9 solely by the vehicle’s VIN code or by checking the compatibility of component part numbers, which will ensure optimal ignition quality. It is important to know that on cars of different engine sizes and gearbox types, spark plugs are not interchangeable and may differ not only in power, but also in design features.

ManufacturerElectrode typeArticle Compatibility by motor typeResistance, kOhmThread sizeTightening torque, OhmApproximate cost, rub. per piece

Note! When choosing spark plugs, the tightening force is of no small importance: with weak tightening, the effect of engine decompression is possible, and with overtightening, there is a risk of stripping the threads from the goujon.

Mitsubishi Lancer. DPRV

Tired of checking. The eyes blurred. I did other inspections and came back again and started checking again.

Extra impulses occur precisely during engine interruptions. I called an electronics engineer I know and told him about the problem. He suggested: “Maybe there’s some kind of crap on the computer?” No, guess what, they came out for oscillation. Sent. He looked and called back: “It’s strange... some very clear impulses.” What happened to the car? — We went through the mechanics, wiring, burned a little… — Maybe somewhere the wires that go to the coil are pinched, or something is being shunted there… we need to look for parasitic signal sources. I rip apart all the wiring from the “brains” to the ignition coil. The work is still the same... I cut all the wiring: when the previous masters were repairing, they shorted the “plus” to power the coils - this wire burned out and fused other wires around it. I look carefully. I replace all the wires with new ones. I check everything with a megometer - everything is normal. So the motor should be working correctly? I start it, accelerate it - the same thing again. I broke my whole head. Where does this parasitic impulse come from? This is nonsense, it shouldn’t exist, but it’s been verified. Well, for such a “difficulty” there is Dmitry Yuryevich’s golden phone (nickname mek, https://forum.mek1.ru/). He told me the problem. And immediately questions: - What did you do with the car? Told. — What changed on the car? Told. — What sensors were changed? “Yes, they changed, the previous masters changed a lot there: the camshaft and knee sensors, and the mass air flow sensor, and the rest, I can’t remember everything... “Come to me,” said Dmitry Yuryevich. We arrived with a client, I just had a day off. Dmitry Yuryevich asks without further ado: “Have you changed the camshaft sensor?” - They changed it. Dmitry Yuryevich turns to the assistant: - Look what’s there... Seconds later, from under the hood you can hear: - Chinese! Without unnecessary movements, Dmitry Yuryevich approaches the box, takes out something in cellophane, unpacks it and gives it to the assistant: “Put this one in.” We installed a sensor. Next, Dmitry Yuryevich commands: - Start it up! We started the engine. We started accelerating. A miracle happened: at all speeds the engine worked stably and without jerking. And at that moment I was terribly offended! To the core! I, such a one, spent so much time, effort and nerves, and Dmitry Yuryevich solved the problem within three minutes! Emotions are through the roof. I was simply shocked. We took an oscillogram:

Iridium spark plugs

The problem of poor quality gasoline was partly solved by replacing conventional spark plugs with spark plugs with iridium electrodes on two-liter 4G63 engines. Since 2006, iridium spark plugs began to be installed on engines with a volume of 1.6 liters:

• NGK article MN119487 ;
• DENSO article number MR984943 .

Spark plug DENSO MR984943.

Spark plug NGK MN119487.

Advantages

Plugs with iridium electrodes are more resistant to metal erosion, provide a stable spark and have a longer service life.

The replacement frequency is 100,000-120,000 km . Judging by numerous reviews from owners, installing iridium spark plugs on a 1.6 9 Series engine gives extremely positive results.

What is needed for replacement

You will need a long 16mm spark plug wrench with a magnet.

Replacing spark plugs is carried out with two keys:

1. Socket wrench 10 . Used to unscrew the ignition coil.
2. Candlestick at 16 . Needed for removing and installing spark plugs.

Experts advise buying a spark plug wrench with a plastic or magnetic retainer . The ideal solution would be a spark plug from a 16-valve VAZ .

Many motorists are faced with a problem when the spark plug key simply does not fit into the well. To prevent this from happening, you need to choose a candlestick with a smaller outer diameter (about 22 mm less than required). If the key does not fit into the spark plug well, you can lubricate it with a small layer of oil.

The photo shows that the walls of the spark plug keys vary in thickness.

Algorithm

1. We find two low-voltage inputs of the ignition coils. They have connectors installed that need to be removed. This is done without any tools or excessive effort - lightly press from above and pull to the side.

Remove the 2 ignition coil terminals.

Using a 10 mm socket, unscrew the 4 bolts securing the coils.

Remove the ignition coils one by one.

After dismantling the wire coils, free access to the spark plugs opens.

When removing the candles, we look at their condition. Oil leaks on the spark plug body indicate a worn spark plug well sealing ring.

Periodicity

The timing of replacement depends on what kind of spark plugs you use in your car.

The manufacturer recommends replacement at the following intervals:

1. Conventional spark plugs are changed every two years or after the car has covered 30,000 km .
2. Spark plugs with iridium or platinum coated electrodes last twice as long, that is, 4 years or 60,000 km .

Step-by-step guide to replacing spark plugs on Lancer 9

1. First you need to turn off the ignition and open the hood.
2. We disconnect 2 blocks from the low-voltage inputs of the ignition coils.
3. Using a 10 mm socket or wrench, unscrew the 4 bolts that secure the ignition coils.
4. We pull out the tips of the high-voltage wires from 1 well into the cylinder head covers, then from 4, then similarly from the 2nd and 3rd wells.
5. We take out the ignition coils with high-voltage wires and put them aside.
6. We take a ratchet, an extension cord and put on a spark plug head for 16 (it is advisable to have the head with a magnet, this will make it easier to pull out the spark plug, you can also use a head with a rubber tip) and begin to unscrew the spark plugs from all 4 wells one by one, pushing the extension cord with the head inside the wells .
7. We take a new spark plug and insert it into the spark plug head, push it into the well and begin to tighten the spark plugs in all cylinders one by one.
8. We install the ignition coils with high-voltage wires in the reverse order.
9. We tighten the ignition coils using a socket 10 and reconnect the pads that go to the ignition coils.

Let's start replacing the spark plugs on the Mitsubishi Lancer 1.6

1. A set of spark plugs is required, in our case it is NGK BKR6E-11:

2. Remove 2 blocks from the low-voltage inputs of the ignition coils (indicated by a green circle):

3. Using a 10mm wrench, unscrew the 4 bolts securing the ignition coils:

4. Pull out the tip of the high-voltage wire from 1 well into the cylinder head covers:

5. Pull out the tip together with the ignition coil from well 4 into the cylinder head covers:

6. Next, you need to do similar to the previous two steps with the second and third wells:

7. We put the removed ignition coils with high-voltage wires away:

8. Next, using a spark plug wrench, unscrew the old spark plug from 1 well. You need a key with a plastic or magnetic lock to easily remove the spark plug from the well. But if you don’t have such a key, don’t worry, you can first unscrew the spark plug and then use the rubber spark plug tip to remove it from the well.

10. We put a new spark plug in a spark plug wrench with a lock and screw it into place of 1 cylinder.

11. We perform the previous two actions with the remaining three cylinders.

12. Reinstall the ignition coils with high-voltage wires.

13. Screw on the ignition coils and reconnect the pads to the ignition coils.

14. Replacement of spark plugs is completed

Replacement

If you do not know how to replace spark plugs on a Mitsubishi Lancer 9, then we provide instructions to help.

1. Remove the pads from the low-voltage inputs of the ignition modules (marked with green arrows).
2. Unscrew the coil mounting bolts.
3. Remove the tip of the armored wire from the first well in the cylinder head cover.
4. Remove modules from all wells.
5. Unscrew the first spark plug; it is located inside the well.

To make it easier to turn out, the key should have a plastic or magnetic lock. Then all that remains is to remove all the other SZs and insert new ones in their place.

Choose your candles wisely for your lancer. Remember that expensive does not mean the best, and cheap does not always mean the worst. Try to choose elements with a large number of electrodes, soldered with precious metals. Give preference to products from well-known companies.

A spark plug is a special device designed to ignite a mixture of gasoline and air in internal combustion engines - unlike engines running on diesel fuel, any gasoline engine requires an ignition element.

Due to its design features, the spark plug creates an open arc that ignites the fuel, forcing the engine piston to oscillate.

Analogs

Old candles. Insulators are broken. The engine will stall and run poorly.

• Bosch 0 242 232 502
• Brisk 0035
• Champion EON1/286
• Champion EON1/287
• Denso K20TT
• Eyquem 0911007193
• Hella 8EH 188 704-011
• Master-sport U-SERIE-MS-14
• NGK 1496
• Vemo V99-75-1020
• Valeo 246871

DENSO SPARK PLUG - the simplest inexpensive candles. According to reviews, they last a long time and work well. The price is about 500 rubles for everything.

The best manufacturers

The most famous on the market are Denso, Bosch, Champion and NGK. The latter is known for being the first to receive permission to produce iridium spark plugs.

There is no point in relying on any one company. They all do their job equally well and do not have any special advantages in their class. Technical indicators are decisive.

It is obvious that the best candles in the world are mercilessly counterfeited. And here the car owner must be on guard. Models should be purchased only at large and well-known outlets, taking into account the cost of the original products. For example, if you know that the original SZ from Denso costs 300 rubles, then the option for 100 rubles should immediately arouse suspicion.

Replacing spark plugs on a Mitsubishi Lancer 9: the devil is not as scary as they make him out to be!

The replacement procedure does not require specialized skills or a lot of free time - all you need for the job is a set of spanners, a 16-point spark plug wrench, and a sheet of sandpaper. To replace spark plugs on Lancer 9 you must:

1. Open and place the hood on the locking stop, then turn off the power supply circuit of the car by disconnecting the negative terminal from the battery;
2. Next, you need to remove the blocks with low-voltage ignition coil connectors on both sides of the engine cover;
3. Then we unscrew the fixing bolts from the ignition cover and pull the tip of the high-voltage cable towards us from the fourth well of the cylinder head. Upon completion of the procedure, we carry out similar operations with 2 and 3 wells;
4. Putting the cable aside, unscrew the old spark plug from the first well with a spark plug wrench and pull out the device using the rubber tip;
5. Then we install a new spark plug in the first well and carry out an identical operation with the remaining cylinders. After installing the components, we lay the high-voltage cable and connect the ignition coil. Next, we connect the blocks with harnesses to the coil and add a negative voltage to the battery.

Upon completion of the repair, a control test is performed to ensure functionality. When choosing non-original components, the spark plugs may be filled with an air-fuel mixture: in this case, the parts are not compatible with the car and require calibration - by adjusting the fuel supply, you can set the spark plugs for optimal performance.

The secret to quality ignition: stay informed!

If the spark plug is unstable, the engine will not work to its full potential: it will be difficult to start the car when cold, and the power and stability of the engine will also decrease. A faulty spark plug is a headache for any driver: do not neglect the procedure for replacing components, otherwise problems with the operation of the car will occur.

The only factor affecting the quality of spark plug ignition is the gap between the electrodes of the device. By changing the gap size, the ignition speed is adjusted: a larger distance increases the ignition zone and time, a smaller distance increases the speed. The best option is to set the gap between the electrodes according to the car’s technical book, however, this rule applies only at the beginning or middle of the engine’s operational life, when approaching a major overhaul - the ignition will have to be set literally blindly, taking into account the characteristics of the engine.

conclusions

When replacing spark plugs, you may accidentally touch the hose on the valve cover - do not forget to put it back on the fitting.

The spark plug replacement is complete. You can now perform a test drive. To perform this procedure, you do not need to contact a service center at all - you can perform all the steps yourself.

Sources

• https://etlib.ru/report/643-zamena-svechej-lanser-9
• https://carfrance.ru/menyaem-svechi-na-mitsubisi-lanser-9-s-dvigatelem-1-6-litra/
• https://info-mitsubishi.ru/aksessuary/svechi-na-mitsubisi-lanser-9.html
• https://zapchasti.expert/mitsubishi/lancer-9/svechi-lancer-9.html
• https://carfrance.ru/svechi-zazhiganiya-na-mitsubishi-lancer-9-1-6/
• https://servicing-auto.ru/zamena-svechej-na-mitsubishi-lancer-ix/
• https://lancer-faq.ru/car/mitsubishi-lancer-ix-1-6i/zamena-svechej-zazhiganiya-ix-1-6.html