Why is spark plug gap so important?
Proper Spark Plug Gap A gap that is too close will not deliver the proper amount of spark to satisfactorily cause the air fuel mixture to burn cleanly. While a gap that is too wide may not allow the ignition system to fire the plug at all. Properly gapped spark plugs also remove heat from the cylinder ignition chamber.
Do modern spark plugs need gap?
Do Spark Plugs Always Have to Be Gapped? Not always. In the past, it was necessary to gap spark plugs, but today spark plugs are usually pre-gapped. It is advisable to double check that the gap is correctly set to the vehicle’s recommended setting when installing spark plugs.
What are the effects of bad spark plugs?
Bad spark plugs lead to a myriad of performance issues ranging from acceleration problems to low fuel efficiency and start-up failures. These negative impacts can ruin your day and make your vehicle less fun to drive.
What is the proper spark plug gap?
Find the gap specifications for your vehicle. You can find the spark plug gap specifications at several locations on your vehicle.
Are spark plugs pre gapped?
A spark plugs Gap directly affects the tip temperature and the voltage necessary to fire the plug. Bosch spark plugs traditionally leave the factory pre-gapped for their most popular application.
Are NGK plugs pre gapped?
While most NGK spark plugs are pre-gapped, there are occasions when the gap requires adjustment. Care must be taken to avoid bending or breaking off the fine-wire electrodes. NGK recommends a round wire-style or pin gauge gap tool to measure the gap.