What happens if the spark plug gap is too small?

The Spark-Plug Gap One of the key factors that makes a spark plug work well, or not, is the size of the gap between the electrodes. If the gap is too small, the spark will likely be too weak and cause the engine to run poorly or with poor efficiency.

Does spark plug gap affect idle?

Spark plugs that are gapped incorrectly can cause an engine to miss, or run erratically, especially during idle. The incorrect spark plug gaps can cause uneven firing of individual spark plugs and delay engine combustion; both of which can cause an engine to miss or idle erratically.

What should the spark plug gap be on a brisk?

Also, the spark plug gap should never exceed .055″ unless pre-set by the manufacturer. Most Brisk and other manufacturer sparkplugs are preset to around 0.75mm – 0.8mm. If your spark plug part number has no trailing digits then (for most part numbers) it will be preset to this specification.

Why are there so many different spark plug gap firing configurations?

Sometimes customers wonder, why there is so many different spark plug gap firing configurations. The reason is, that in order to get the best possible performance, the spark plugs have to be carefully matched with the appropriate application and intended use.

What happens if you change the spark plug gap too much?

Excessive changing of the spark plug gap setting will result in weakening of the spark plug ground electrode and can lead to breakage. Also, the spark plug gap should never exceed .055″ unless pre-set by the manufacturer.

What is the spark plug gap on a turbo car?

Some applications such as ProMod turbo cars using M1 fuel frequently run a spark plug gap as small as .012″, even though they are equipped with some of the highest output ignition systems providing in excess of 60,000 Volts high current and high mJ power output.