Ford Fokus>> Ignition system>> Spark plugs>> The backlash between electrodes increases in operation
Along with correct калильным number (the tab. «Candles for car Ford Focus engines» see) spark plugs should have a demanded backlash between electrodes for each candle. It makes for new candles about 1,3 mm, but increases in process of operation.
At replacement of candles pay attention to that on your car candles with ordered калильным the number demanded by a backlash and the corresponding carving have been established only.