How do you set the spark plug gaps?

Answer by  Allstar (2071)

Most plugs come pre-gapped, you just have to check them with a feeler gauge. If they're out of spec, bend the electrode into spec.

Answer by  Amber40 (24961)

First thing, measure the gap feeler gauge or the gapping tool. Then simply adjust it until it is at recommend width. Be careful not to damage the plug.

Answer by  champaign9497 (11977)

there is a tool your can buy that will put the gap in the plugs for you and it is very cheap to purchase. For more information do a net search for more options.

Answer by  hypertech (690)

You need a $2 gap tool and need to know what gap your car needs. Check the gap with a spacer then bend the electrode as needed.

Answer by  ivym (34)

Best practice is to use a gapping tool, cheaply purchased at any parts store. They should also be able to tell you the gap value for your vehicle.

Answer by  Amber40 (24961)

You need a gapping tool. It is a feeler gauge and a tab to push ad pull the top electrode. Once you know what the gap should be you need to check the gap on the new plug with the gauge. Then you move it to the correct gap. Be very carefully and don't pry against the center electrode.

Answer by  turborotary91 (256)

u shouldnt have to gap themif u got the spark plugs from an autoparts store but if u do.u can pic up a gauge at the front counter at the parts sore.then go online to check the gap specs.then insert the gauge and turn till u get the right measurement