Keeping your engine operating at peak performance nowadays can require an engineering degree and cost thousands in test equipment. The least expensive operating part in your engine is also one of the most important – Spark plugs. The Spark plugs are the critical last pieces in the ignition system that every petrol engine needs to operate. Maintaining these parts can be one of the only maintenance tasks left that does not require advanced test equipment – usually you just need a few hand tools that are found in most toolboxes.
Spark plugs are an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed fuels by means of an electric spark.
Spark plugs operates by directing electrical current to flow through a centre electrode, forming a spark across an electrode (or air) gap, completing the circuit to a ground electrode. The centre electrode is surrounded by a ceramic insulator which is non-conductive preventing current leakage and ensuring electricity flows in the desired direction.
Damaged or dirty spark plugs can seriously affect performance. Over time spark plug electrodes can wear down, crack, corrode and become coated in deposits, causing misfires. Be sure to check and change spark plugs regularly for the best results.
So which Spark plugs are right for you?
Engine development does not stop when vehicle production starts. Quite the contrary. Since Bosch, for instance, is a major supplier of spark plugs to domestic and import OEs, their engineers continue to work with the automakers’ engine development teams to come up with designs that can work even better than that which existed when the car was first built.
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