Spark Plug Installation Torque is one of the most critical aspects of spark plug installation. Torque directly affects the ability of the spark plug firing end to dissipate heat to the cylinder head. A spark plug that is under-torqued will not be fully…

Oxygen Sensor Basics NTK is the world’s leading supplier of OEM oxygen sensors, supplying more vehicle makers with oxygen sensors than any other manufacturer. NTK oxygen sensors are individually tested to ensure the highest level of quality and reliability. Everyone…

Spark Plug Basics Spark plugs have been around as long as internal combustion engines have and are often a misunderstood component. This basic guide is designed to assist the technician, hobbyist or race technician in understanding, using and troubleshooting…

How do I install spark plugs correctly? It is essential to tighten a spark plug to the specified turning angle or torque setting. First, screw in the plug finger tight until the gasket meets the cylinder head. Then seat the plug/gasket with a torque or…

ARE SPECIAL PLUGS NECESSARY ON A MODIFIED ENGINE? It depends on the modifications. The term “modified” refers to those engines with bolt-on components that may or may not raise the total compression ratio of the engine. These can include turbocharging,…