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What does gapping and indexing mean for you? Check out this article to learn more about spark plug gap tolerances and indexing for race applications.
2019 NGK spark plug catalog featuring a wide range of products for automotive applications.
Spark Plug Installation. Torque is one of the most critical aspects of spark plug installation. Torque directly affects the ability of the spark plug firing end to dissipate heat to the cylinder head. A spark plug that is under-torqued will not be fully seated in the cylinder head and heat dissipation will be slowed.
The close up section shows the annular gap between the centre electrode and insulator nose which provides cold fouling protection. Should current try to leak away across a carbonised insulator a spark can occur between the electrode and the insulator thus burning away the carbon deposit. 1.
pre-set gap larger then the original item. Please ensure that these are suitable for the intended application. MP 1 of 5 November 2020
manufacturers often require increased spark gaps to allow a longer spark duration, which again aids more efficient combustion. To combat the cold fouling effect that can occur in some engines using unleaded fuels specially arranged
The electrode gap of a spark plug dictates the spark magnitude. An incorrect electrode gap may affect engine performance as the spark magnitude may be insufficient to ensure complete combustion of the air-fuel mixture.
