Ceramic Insulator Archives - Import Car
VIDEO: Spark Plug Insulators And Flashover

Andrew Markel shows the importance of keeping a spark plug’s insulators clean to prevent flashover. Sponsored by Denso.

Tips For Spark Plug Removal

Removal or installation of spark plugs on modern vehicles requires extreme precision and care. Before removing a spark plug, check to see if it’s still working properly and whether the engine itself is in good working condition — since both go hand in hand. Spark plugs that have excess carbon ­deposits or are oil-fouled could