Many motorists are familiar to the situation when the ignition candle breaks directly in the engine. In this state, it is impossible to operate the car, you must unscrew the candle. There are a number of nuances that you need to know to unblessly unscrew the broken spark plug, we will tell about them in this article.

Broken candle why they break

Ignition Candle - a device that transmits electricity through contacts and is responsible for igniting fuel in the combustion chamber of the power unit. The resource of one spark plug is approximately 30 thousand kilometers. In addition, it is recommended to periodically check their condition, as they are covered with soot and nagar. There are two main reasons why the ignition candles are most often broken - poor-quality making of candles and a late replacement.

Tools, fixtures, consumables

• A piece of pure fabric.
• WD-40.
• Dynamometric key.

Dynamometer key - an important assistant to remove a broken candle

Before twisting the candle, you must prepare a special tool - a dynamometric key. Thanks to him, you will have the opportunity to control the application of your strength. Some car owners do not know which key to unscrew, so use the usual key. But with such a tool, you either can not enter the well, or you will break the threads at all.

Important advice for specialists to remove broken candles

The plot where the candle is located, carefully clean from dirt. To do this, use a piece of clean fabric and special means. Pour the lubricant into the nest, for example, WD-40. The tool lubricates the thread and facilitates further twisting. When you roam the oil, you need to wait 10-15 minutes, after which you can proceed to direct work.

Safety technique

Before you begin the procedure for selecting an item from the nest of the power unit, you need to prepare. Wait until the power unit of your car will cool - you should not climb the engine hot after driving. In addition, as is known, the aluminum head of the cylinders when heated expands and clamping the spark plug into the thread. In this case, you will definitely not remove it from the nest. Also before work, you need to disconnect all contacts.

Ways to remove broken candles in stages

Each product has a special hexagon for a dynamometer key, which is in the middle, and breaks, as a rule, the top part of the insulator is called.

1. You must throw the key to a piece stuck in the nest. Unscrew the item slowly, smooth movements. Many car owners ask, in which direction you should unscrew the spark plugs. In such products usually right thread. Accordingly, unscrewed counterclockwise.
2. During the procedure, hold the tool exactly along the device axis. Do not hurry or apply great efforts. If you use your entire strength, there is a risk of threading. In this case, you will have to refer to the specialists - only they can remove the item. When you turn the key, listen to the sound with which the device is unscrewed.
3. If you hear a light grinding, then the candle is twisted normally. But if you felt a small jerk, after which the candle began to get out very easy, it can talk about breaking the thread. In this case, turn the key back and wait a bit. Next, using smooth movements to various sides, it is necessary to gently unscrew the product.

Why does Nagar appears on candles, how Nagar is reflected at the work of the spark plugs

Spark plugs function in a "tight" medium, where they are exposed not only to thermal, but and chemical effects. During the combustion of fuel on the electrodes of automotive candles, a gray flask appears, which signals the stable functioning of the system. Also, white, black or red nagar may appear on the candle, the presence of which should force the motorist not only to replace the candles, but urgently check the motor to certain malfunctions.

As a rule, Nagar on Candle appears in the following cases:

• Fine replacement of candles.
• Non-quality candles. Fake or factory marriage.
• Operation of the car under conditions of sharp fluctuations in temperature regime.
• In conditions of increased oil consumption.
• With increasing fuel consumption and power loss.
• When the motor oil gets into the cylinder.
• With excessive use of additives in order to increase the octane number of fuel used.
• No candles are installed on the car. Too "hot."
• Spraying can be formed during the improper functioning of the carburetor.

Tools, fixtures, consumables

1. Knife.
2. Brush
3. Sandpaper.
4. Degreaser.
5. Acetate ammonium.

How to clean the spark plugs, the course of work stages

There are two ways with which you can clean the spark plugs from Nagara: mechanical and chemical.

The mechanical method involves removing the plaque with a knife, brushes or sandpaper. It is the easiest option.

Cleaning with a chemical method:

1. Remove the spark plug.
2. Degrease it and dry.
3. We put in a 20 percent solution of ammonium acetate.
4. Hold the candle in a solution of 20-25 minutes.
5. Give it and with the help of the brush, consider the remnants of the soot.

Tips Prof.

As you can see, the procedure for selecting a broken element is quite simple. The main thing is to be patient and do not hoop work. And it is better to avoid such situations at all. To do not break the candles, it is necessary to buy only high-quality products and regularly replace them.