Replace the spark plugs in the car

Spark plugs are an item that must be replaced after about 30-35 thousand kilometers. And for cars sport plug replacement is 15-20 thousand. km. This is due to the influence of aggressive environment with high temperatures and electrical surge on a separate structural elements of the candles.

A Regular car candle consists of a Central electrode, side electrode, seal, metal shell, insulator, ribs, insulator (for better gathering sparks) and contact output. Down, usually facing the electrodes, which are burned under high temperatures, breaking a predetermined distance between them (between the side and center electrode), called the gap of spark plugs. Also may suffer isolation, resulting in the candle is not formed, the spark that is reflected in the work of the engine.

Replacement of spark plugs is produced in accordance with the specification indicated in the technical passport of the car. Experts recommend make it in time, and in a complete set, as a worn-out candle may pose a risk of detonation engine, in which case there is a need for a very costly repair.

In General, you should put “native” the candles, however, if there are none at hand or have a desire to deliver more effective parts of this kind, we can use the fact that the automotive industry provides for the interchangeability of spark plugs. Because of the universal marking for the spark plugs does not exist, then the selection of candles is done using tables, in which the Russian candles (coding often starts in “A”) are matched candles German, French, American, Czech, Japanese, etc. production.

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Replacement of spark can be based on the style and place of driving (city, highway). The more aggressive the style, the greater must be pre-a number that is inversely proportional to the temperature in the contour of the insulator. In some cases, the vehicle can positively impact the use of candles with platinum inserts or plugs with multiple side electrodes which are longer than usual due to the greater corrosion resistance (platinum) or a uniform distribution of discharge between electrodes 3-4.

Experienced motorists know how to change the spark plugs without going to a body shop. For this, first, disconnect the elements of the ignition (key out of 10-12). Second, before changing candles around them clean off the dirt to prevent the ingress of debris into the engine. This is done using the compressor for tires, a high pressure compressor or a simple brush. Then takes a candle key having a special head gasket, spark plug unscrewed and removed. New plugs screwed also with the help of candlestick key, ignition plugs in place. The operation takes about ten to fifteen minutes.

Basically the spark plugs changed to new. However, in some cases after uncomplicated operations “life” candles can be extended. It cleanses away the soot with a solvent, examine for damage, check for serviceability on special stands, adjust the gap between the primary and secondary electrode and set back.

Note that some examples of modern automotive engineering are so complex that the replacement of candles on them in primitive conditions is impossible. In this case, remains nothing how to go about changing spark plugs in a specialized service. The service cost is not very high – from 300-400 rubles and depends on design features of cars of a specific brand.