Spark Plugs

What does a Spark Plug Do?

The primary function of the spark plug is to ignite the air/fuel mixture within the combustion chamber under any operating condition.

Spark plugs must provide a path and a location for electrical energy from the ignition coil to create a spark used to ignite the air-fuel mixture. A sufficient amount of voltage must be supplied by the ignition system to spark across the spark plug gap. This is called "Electrical Performance."

The spark plug firing end temperature must be kept low enough to prevent pre-ignition, but high enough to prevent fouling. This is called "Thermal Performance", and is determined by the heat range selected.

Common Problems with Spark Plugs

Many times when a spark plug will not fire there may be debris that has built up around the lower portion of the electrode and the grounding point. This will cause the spark plug to short out and not create a spark. The air gap is vital for the spark to occur.

A bit about NGK

Click Car Parts supplies the full range of NGK Spark Plugs, NGK have been manufacturing spark plugs for over 35 yrs and are the leaders in the field when it comes to manufacturing high quality spark plugs and glow plugs. NGK was established in the UK in the early 1970's and every NGK Spark plug is designed to meet the most rigorous standards, thereby delivering reliability and consistent performance under all conditions.