Developmental Trends Of Spark Plug Dimensions

A permanent reduction of the space for the spark plug in cylinder heads,

resulting from "downsizing" and improvement of heat balance in the engine, 

affects the spark plugs dimensions and places much higher demands on the quality of the insulator.

spark plug results of cylinder head downsizing

spark plug results of cylinder head downsizing

spark plug results of cylinder head downsizing

spark plug results of cylinder head downsizing

spark plug results of cylinder head downsizing

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