Skoda Felicia

1. Efficiency of return of the power unit appreciably depends on serviceability of functioning of spark plugs. It is important, that candles on the standard size corresponded to the engine established on the car. Under condition of performance of the mentioned requirements and serviceability of a condition of the engine of a spark plug seldom require attention, besides necessity of performance of procedures of routine maintenance of the car. Necessity in зачистке candles arises also extremely seldom, procedure should be made only with application of the special equipment, the risk of damage of working parts of electrodes otherwise is extremely great.
2. Before to start a reversing of candles wait full cooling of the engine.
3. For the purpose of providing of access to candles turn out three screws of fastening established over the case of a throttle of a cover. Pay attention that the forward screw is longer remained than two. Liberate from clamps on the bottom party of a cover all hoses and wires, then uncover.
4. In the absence of factory marks on ВВ wires of spark plugs, mark wires independently by means of an adhesive tape according to numbering of cylinders (it is considered the first the nearest to a belt of drive ГРМ). Try not to damage isolation of wires.
5. Tips ВВ of candle wires are equipped by metal thermofilters. Accurately remove tips from shafts of candles (in order to avoid damage of the contact plug pull only for a tip, but at all for a wire).
6. Before to turn out candles it is necessary to remove small dust and a dirt from candle niches - take advantage of a small brush, or blow niches the compressed air (it is possible to take advantage of the usual bicycle pump).

7. By means of the special key equipped with the elastic loose leaf, turn out spark plugs. In order to avoid carving damage try not to warp a candle during a reversing.

8. The external condition of candles can give a lot of helpful information on degree of deterioration of the engine. If the working end of a candle shines and is free from touches and adjournment, hence, in combustion chambers too poor air-fuel mix moves, or the candle has excessively high калильное number (heat removal from electrodes in a hot candle occurs less intensively, than in cold).
9. If the working end of a candle and an internal central insulator are covered by a thick layer сажистых adjournment, hence the mix is too enriched. Black окрас a working part of a candle in a combination to oil traces testifies to internal deterioration of the engine, or also excessive enrichment of a mix.
10. Golden or serovato-brown colouring of a working part of a spark plug is the certificate of correct configuration of an air-fuel mix and good inwardness of the engine.

11. On considered engines of cars Skoda multielectrode candles (see an accompanying illustration) are used. Interelectrode backlashes on such candles are exposed industrially and to updating are not subject.

12. The further description of procedure is resulted in Section Replacement of spark plugs - models 1.3 of the l devoted to models 1.3 of l.
13. In summary, having connected to candles ВВ of a wire, establish into place a cover of the case of a throttle, strongly having tightened screws of its fastening.