What do numbers mean on Champion spark plugs?
The combination of letters and numbers assigned for every Champion spark plug is a logical formula which indicates the major features of its design. [15] Heat Range – The middle number indicates the heat range of the spark plug, the higher the number the hotter the heat range.
What do spark plug letters mean?
The letter “P” indicates a platinum center electrode. The letter “S” indicates a copper center core. The letter “V” indicates a fine wire gold palladium center electrode. The letter “Y” indicates a V-grooved center electrode. The number after the – indicates the recommended spark plug gap in tenths of a millimeter.
How do you know which spark plug is colder?
The higher the number, the hotter the plug. The lower the number, the colder the plug. Starting with part # 24 (heat range 4), if you want a colder plug you would use part # 23 (heat range 3), for a hotter plug you would use part # 25 (heat range 5).
Are spark plugs numbered?
The terminals are numbered either clockwise or counterclockwise, depending on which engine you are working on.
How are cylinders numbered?
Numbering systems for car engines The numbering system for cylinders is generally based on the cylinder numbers increasing from the front to the rear of an engine (See engine orientation below). Cylinders numbered from front (#1 cylinder) to rear.
Is a higher number on spark plug hotter?
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 makes a spark plug hotter or colder?
The major structural difference affecting the heat rating is the length of the insulator nose. A hot-type spark plug has a longer insulator nose. The insulator nose of a hotter spark plug has a longer distance between the firing tip of the insulator and the point where insulator meets the metal shell.
How do you find the #1 cylinder?
on an inline engine: the number one cylinder is located at the front of the engine, closest to the timing cover. on a v type engine: one cylinder head is slightly forward of the other, toward the front of the engine. cylinder number one is the forward most cylinder in that bank.
Are there different types of Champion spark plugs?
There’s a Champion spark plug for every application: The tabulated values generally hold true for the more common plug types. There may be minor variations from the tabulated values for the less common plug types. Please note, within a given plug family the plugs run hotter as the number gets higher.
Which is hotter a hotter Champion Spark Plug?
Hotter plug for low speed use to burn off deposits. Too hot and you’ll get pre-ignition, which will put holes in yer pistons. With Champion plugs, the higher the number, the hotter the plug. Almost all the others work the opposite.
Which is the part code for spark plugs?
The NGK code provides a ‘breakdown’ key to spark plug features as described by the NGK part code. Use this code to learn more about NGK’s plugs specifications for your part number.
What is the Denso code for spark plugs?
The Denso code provides a key to Denso spark plug features as described by the Denso part code NGK Plug types images and brief details of various types of plug from NGK such as Iridium IX, Platinum EVX, GV, G etc. Denso Plug types images and brief descriptios of various parts from Denso including Iridium power and ZU platinum plugs.