What do the letters and numbers mean on spark plugs?
The heat range of a spark plug is the range in which the plug works well thermally. The heat rating of each NGK spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type.
What’s the best way to install a spark plug?
First, screw in the plug finger tight until the gasket meets the cylinder head. Then seat the plug/gasket with a torque or turning angle wrench as specified in the chart below. This is very important, as excessive tightening of a spark plug can cause breakage of the metal shell and damage to the interior seals.
What is the symbol for Champion Spark Plug?
Symbol codes for Denso, Champion and NGK. A breakdown of the manufacturer’s descriptive part number. Spark plug failure analysis – Images and information to help you diagnose why your spark plug has failed or is not operating correctly.
What do you need to know about spark plug failure?
Spark plug failure analysis – Images and information to help you diagnose why your spark plug has failed or is not operating correctly. Torque settings – Important figures to ensure you install your spark plugs correctly, fitting plugs securely without over stressing materials.
What do you need to know about Iridium spark plugs?
Iridium spark plugs information – Such a common FAQ that we’ve dedicated a page to these Denso and NGK products. Technical glossary – To explain some of the basic specifications by which spark plugs are categorized. Symbol codes for Denso, Champion and NGK. A breakdown of the manufacturer’s descriptive part number.
How to find the right spark plug and gap?
Before doing any small engine repair or maintenance, be sure to check your manual for recommendations on specific parts numbers and safety precautions. Now that you’ve found the part you’d like to replace, you can use the chart below to identify the genuine Briggs & Stratton replacement spark plug and gap recommendation.
First, screw in the plug finger tight until the gasket meets the cylinder head. Then seat the plug/gasket with a torque or turning angle wrench as specified in the chart below. This is very important, as excessive tightening of a spark plug can cause breakage of the metal shell and damage to the interior seals.
What does NGK stand for in spark plugs?
NGK indicates the heat range in the middle of the plug number. For example, BCPR6ES-11 has a heat range of 6. (The number after the “-“ is the gap.) NGK plugs are colder the higher the number, hotter the lower the number.
What kind of spark plugs do I need for a lawn mower?
Flathead Engine Spark Plugs & Gaps. Also known as L head or Side Valve Engines, these engines are commonly used for walk behind lawn mowers and pressure washers. If you have a Quantum engine, be sure to check the Code Date before doing any engine maintenance.