| 1. On DOHC engines with system of injection KE-JETRONIC remove a forward cover, unscrew screws and uncover, closing spark plugs (see rice. Removal of a forward cover on the DOHC engine with system of injection KE-JETRONIC, Unscrewing of screws of fastening of the cover closing spark plugs, Removal of the cover closing spark plugs). |
| 2. On DOHC engines with a control system of the HFM engine remove ignition coils from the top cover of a head of the block of cylinders. |
| 3. Remove high-voltage wires from spark plugs, having pulled for a candle tip (see rice. Removal of a high-voltage wire from spark plugs on the 6-cylinder DOHC engine, Removal of a high-voltage wire from a spark plug on the 4-cylinder engine). |
| 4. Clear candles, using a brush, the vacuum cleaner or a stream of compressed air to exclude hit of dirt in engine cylinders, after a vyvinchivaniye of spark plugs. |
| 5. Using a candle key, unscrew spark plugs (see fig. Vyvinchivany spark plugs from the 6-cylinder DOHC engine, Vyvinchivany spark plugs from the 4-cylinder engine, Extraction of a spark plug from the 4-cylinder engine). |
| 6. Visual control of a working part of spark plugs can show a condition of the engine. If the nasal part of the isolation center of spark plugs pure and white, without raid, then it testifies to too poor mix. It also specifies that a candle too hot, that is heat from the central electrode is taken away slowly. If this is so, then it is necessary to adjust composition of mix or to replace a candle. |
| 7. If the nasal part of the isolation center of a candle is covered with a black raid, then it means that mix too rich. If the raid black and oily, then it testifies to wear of the engine and need of its check and repair. If the nasal part of the isolation center is covered with a light brown raid, then the composition of mix is optimum and the engine is in good shape. |
| 8. The interelectrode gap of a spark plug is of great importance as at too big or too small gap the spark size changes that leads to decrease in overall performance of the engine. The gap has to conform to technical requirements always. |
| 9. Check of a gap is carried out by a wire template or the probe. Correction of a gap is carried out podgiban I eat a side electrode. The central electrode cannot be bent at all as it can lead to breakage of the insulator and an exit of a candle out of operation (see rice. Measurement of an interelectrode gap of a spark plug with use of an edge of the probe). |
| 10. For a podgibaniye of a side electrode of a spark plug it is necessary to use the special tool (see rice. Use of the special tool for a podgibaniye of a side electrode of a spark plug). |
| 11. Before installation of a spark plug in the engine, check that the carving was pure and all threads of a carving whole. |
| 12. For screwing up of a candle on several rounds it is possible to use a piece of a rubber hose into which on the one hand to insert the insulator of a candle and, rotating a hose to screw up a candle on several rounds. Then it is necessary to remove a hose and to screw up a candle the required moment (see rice. Screwing up of a spark plug in the engine). |
| 13. Connect high-voltage wires to spark plugs and establish all earlier removed elements. |