What is the gap on a spark plug supposed to be?
What is the gap on a spark plug supposed to be? The gap setting is different for each vehicle but most are somewhere between 0.028" and . 060". Consult the owner's manual or Champion ® catalog to find the recommended setting for the vehicle you're working on. Where is the spark plug gap on a spark plug? Spark Plug Gap - understanding the basics. Spark plug gap is where spark plug spark discharge is designed to take place. On a conventional spark plug, it is the area between the center and the ground electrode. How big is the spark plug...