Ford Fokus>> Ignition system>> Work with ignition system>> Replacement of spark plugs
On cars Focus recommended periodicity of replacement of candles makes 60 000 km of run. Replacement of candles spend only at the cold engine, by means of a special candle key, in a following order:
- Remove a wire from spark plugs;
- Turn away a candle on three turns and blow apertures under candles air under pressure. So you will avoid that at dismantling the dirt will get to apertures and will reach cylinders;
- Definitively turn out candles by means of a candle key and spread out on a workbench in that order in what they have been established on the engine;
- Put on a surface of a carving of new candles a thin layer of graphite greasing. Screw candles at first a hand and then a key on a turn quarter (90 °). It corresponds to the ordered moment of an inhaling 25 Н·м;
- If you trust the used candles then before their installation clear a carving a brass brush. The further installation spend, as well as for new candles, but a candle key turn only on 15 ° as the sealing ring of the used candles already has been compressed.