Spark Plug

What is a spark plug? How does a spark plug work?

Tip Temperature

Tip Temperature and Firing End Appearance The appearance of the firing end of a spark plug very much depends on the tip tmperatur of the spark plug. Spark plugs diagnosis depends on three criteria: Good Fouled Overheated The spark plug self cleaning temperature is defined as the borderline between the optimum and fouling operating regions [...]

Spark Plugs: Heat Rating and heat Flow Path

Spark Plugs: Heat Rating and heat Flow Path The distance from the point where the metal shell and the insulator meets to the firing tip of the insulator is termed as Insulator Nose Length. The tip temperature is a primary and significant factor in pre-ignition and fouling, since the insulator tip is considered to be [...]

Spark Plug Basics

Spark Plug Basics There are two primary functions for spark plug: Ignite the air/fuel mixture Remove heat from the combustion chamber In short, spark plugs transmit electrical energy that turns fuel into working energy. The ignition system should supply a sufficient amount of voltage to cause it to spark across the spark plug’s gap. This [...]

Spark Plugs

Spark plugs are categorized as one of the most misunderstood components in an engine. Many people are confused and numerous questions have surfaced over the years. The discussion here aims to assist the technician, hobbyist, or race mechanic to understand, use and troubleshoot spark plugs. The information in this guide applies to all sorts of [...]