Cars & Vehicles
Spark Plugs and Wires

How do you use a spark plug gap?



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The spark plug gap refers to the distance between the electrode and the ground point on a spark plug. The gap needs to be set to the factory recommended setting to fire properly. Too much and the spark is weak, too little and there isn't enough spark to fire the mixture. Several styles of gap gauges are made. They all have a piece of metal or heavy wire that is a certain size. The gap is determined by the size of metal or wire that will slide easily into it. spark plug gap is the distance between the electrode and the contact tab on the bottom the little gap in the bottom needs to be set via the gap specs provided by the manufacturer to obtain the correct magnitude of spark