If the motor does not work badly, it is not necessary to immediately run to the service station and carry out an incredibly expensive diagnosis. Both a professional and newcomer-car enthusiast can detect the cause of a car malfunction on the ignition candlelight. For accurate result, the motor should work at least two hundred kilometers. Otherwise, you can confuse. Very often, if you start the engine in a frosty day, it can "trot". Most car enthusiasts, in this case, devouring it and unscrew the candles. Undoubtedly, on it you will see a black Nagar, as a result of the fact that the working mixture under negative temperatures is suppriched and does not have time to evaporate. In this situation, the cause of the malfunction can be any, in particular, the high-voltage wires can be punched, which must be replaced as quickly as possible.

It is not necessary to have special technical education to remember what color the Nagar should be on the vehicle and what indicates various faults. It is important to know that the color of Nagara informs you about the motor and about his work. In addition, you should not forget that the spark plugs need to be chosen to the vehicle in the marking, otherwise there is a possibility of quite serious problems with the head of the cylinder block and the piston group.

Nagar on the candlelight what it is

Spark plugs in the vehicle, especially their electrode part, in fact, operate in extreme temperatures. They have their own effects the temperature of the electrical spark, as well as the combustion temperature of the fuel candle. At the same time, during an electrical spark, there are practically no chemical reactions, not counting the minimum combustion of oxygen. But in a situation with the burning of fuel, a chemical reaction occurs, by means of which the tart of a specific color on the electrodes of the candle occurs.

How correctly the candle did not work, fuel supply systems and other systems that ensure the operation of the motor, the Nagar will occur in any case. Only the color of Nagara, which is formed on the ignition candles, is completely different.

Spark plugs, what color are well-working spark plugs

If in the diagnosis of the vehicle on the ignition candles, you found a weak coffee challenge, light gray or light brown, breathe with relief and further apply the car by its purpose, since this color of the Nagara indicates the normal operation of the vehicle.

This color of Nagara is not dangerous. You can clean the candle to remove Nagara if problems started with Spark. However, the red, white or black color of Nagar signals the faults in the vehicle motor.

In fact, the normal ignition candle should look like this:

1. Brown or gray-yellow color.
2. There should be no bridge between the candle electrodes - as a result of the appearance of such a bridge, the spark is unstable or disappeared.
3. The electrodes of the candle should not be serious roundings.
4. There should be no chipping and cracks in the insulator.
5. Suppose not strong wear of the electrodes.

Spark plugs, which is talking about White Nagar on Candle, how to fix

White raid on the ignition candle is capable of appearing as a result of a number of reasons, one of which is a poor-quality fuel (if there is no glossy surface on Nagar). So that the appearance of a white plate disappeared, it is enough to pour high-quality fuel into the tank and clean the candle.

If the tag on the spark plug is white with a glossy surface, then it is overheated all the time. Also on the electrodes you can see traces of erosion, in other words, small shells instead of a smooth surface. This also testifies to excessive overheating.

The reasons may be the following:

1. Candle is not suitable for this type of motor.
2. The fuel mixture is overly depleted.
3. In the intake pipeline there is a prohibited air secession.
4. Overheating of the candle can occur as a result of problems with the cooling system. Problems can be the most diverse - the level of fluid in the cooling system, clogging in the pipeline radiator and so on.
5. If the ignition is incorrectly exhibited and is early. In this case, you can see the melted electrodes, and the candle will be clean, have a white color or another, when you pass the spark.

In addition, a white-yellow glaze can occur, which indicates a sharp increase in temperature in the combustion chamber during a strong increase in engine speed. To solve this problem, you need to install other types of candles, which will not react so much to a sharp acceleration while driving. Style ride should also be corrected.

Spark plugs, what the Red Tag says how to fix

The appearance of Red Nagar speaks of system problems in the operation of the motor. In fact, the red-colored plaque indicates a result of the combustion of a variety of additives that are located in fuel or oil. As a rule, the red raid does not appear if the proportions of the additives are optimal. However, as soon as their number increases, a reddish flare appears, a very campaign on rust. It is difficult to determine which additives are capable of causing such an effect. There is an unconfirmed belief that these are washing unnecessary additives in oil.

In this case, when the red plaque appears, you must clean the candle, change the fuel and oil.

Spark plugs, what is black tag, how to fix

Immediately it is worth saying that black Nagar is different in its structure. If it is dry, without oil divorces and is similar to ordinary soot, there are several reasons for its occurrence, the main of which is excessive enrichment of the combustible mixture.

The fuel mixture may be overly enriched as a result of the influence of several factors:

1. Incorrect operation or adjusting the carburetor.
2. The air filter clogging and the lack of oxygen in the engine for the complete combustion of the combustible mixture.
3. Problems with the enrichment.
4. If the engine is an injector, then the appearance of black plaque is associated with high pressure in the fuel ramp, which is why there is an unlimited fuel injection. Increased pressure can occur as a result of problems with the fuel pressure regulator.
5. Insufficient compression in the cylinders.
6. Problems with spark in the spark plug, the energy of which is too small.

If the black flaka has in its structure the signs of oiliness, it means that the oil falls into the combustion chamber and does not burn there completely. The main ways of oil enter are oil caps valves or oil-oil piston rings that wear out.

Cleaning candles, how to remove the net with spark plugs

There are two methods for cleaning candles from Nagara - mechanical and chemical. In the latter case, it is necessary to dismantle the ignition candle, degrease, dry and leave a 20% ammonium solution acetate for twenty minutes. Then should be cleaned by the hair brush the remains of Nagar.

The mechanical way is not recommended to clean the candle, as it can be damaged, as a result of which the work of the candle will be incorrect. Clean the candle with this method using sandpaper, metal brush or even a knife.