What is the difference between rcj6y and cj6y?
The sole difference between the two plugs lies in their heat range capabilities, indicated by the numbers 6 and 8 in their code. The difference is Heat Range, RCJ8Y is Hot, RCJ6Y Cold. Can anyone shed some light on the difference between a RCJ8Y plug and a CJ8Y plug? Will either work in Kawi V-Twin engines? Matt Koski. They have piles of Champion CJ6, RCJ6, & RCJ6Y, and some Arnold brand equivalent spark. confused: My chainsaw calls for a Champion CJ6Y plug.
Heat Range indicates the ability of spark plug to reach self-cleaning temperature to prevent carbon fouling. The insulator is longer for the hotter plug, but spark energy is not affected. If the engine manual recommends a RCJ6Y, but the only replacement available is RCJ7Y, I would use it. 15 of 15 found this helpful.
They are interchangeable. The CJ7Y is a non-resistor spark plug. The RCJ7Y is the same plug with a resistor. The resisitor plugs came out after the non-resistor plugs and were used to quieten the Radio Frequency (RF) interference in vehicles with AM-FM radios.
Is CJ6 same as RCJ6Y?
Re: Spark Plug Education According the the Champion numbering system chart I’m looking at, the RCJ6Y has a “standard projected core nose” firing end design, whereas the CJ6 has a “conventional” firing end design.
Can I use RCJ6Y instead of RCJ8Y?
The only difference between plug RCJ6Y and RCJ8Y lies in their heat ranges. Understanding the similarities between them, however, can help determine if choosing the hotter or colder plug is necessary, as the two types are nearly interchangeable.
0.027″ RCJ6Y Spark Plugs
The sole difference between the two plugs lies in their heat range capabilities, indicated by the numbers 6 and 8 in their code. Both the 6 and the 8 spark plugs are considered to be high-heat range plugs, with the 8 being the hotter plug.
What does a hotter spark plug do?
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. Therefore, the path for the dissipation of heat from the insulator nose to the cylinder head is longer and the firing end stays hotter.
What is the gap on a rcj6y spark plug?
You can work out whether you need a hotter or colder plug by looking at the current ones. If the current plug is too hot then the tip may be melted or deformed. If the plug is too cold then you may have excessive build up (which can also be caused by burning oil or a rich air-fuel mixture).
The only difference between plug RCJ6Y and RCJ8Y lies in their heat ranges. Understanding the similarities between them, however, can help determine if choosing the hotter or colder plug is necessary, as the two types are nearly interchangeable.
What kind of spark plug does a cj6y have?
The CJ6Y has a M4 thread terminal type, and the electrodes are made of standard material. Champion uses a copper core in the center electrodes of its spark plugs, which reduces the tip temperature.
What is the size of the champion cj6y?
The Champion CJ6Y is 14 mm in diameter, or thread size, with a 9.5 mm reach and 20.6 mm hex size.
The first three letters of the plug code, “RCJ,” indicate the type of resistor and shell design of the plugs. Both the RCJ6Y and the RCJ8Y use a standard resistor type and have a 14 mm thread, 3/8-inch reach and a hex nut that will either have a 3/4- or 13/16-inch size.
A 12mm x 1.25mm, .750", gasket/joint, 5/8" or 18mm
C 14mm x 1.25mm, .750", gasket/joint, 5/8"
CJ 14mm x 1.25mm, .375", gasket/joint, 3/4"
DJ 14mm x 1.25mm, .307", taper, 5/8"
E 14mm x 1.25mm, .984", taper, 5/8"
EA 12mm x 1.25mm, 1.043", gasket/joint, 14mm
EC 14mm x 1.25mm, 1.043", gasket/joint, 5/8"
ER 12mm x 1.25mm, 1.043", gasket/joint, 5/8"
ES 14mm x 1.25mm, .984", taper, 5/8"
ET 12mm x 1.25mm, 1.043", taper, 14mm
F 18mm x 1.5mm, .429", taper, 13/16"
G 10mm x 1.0mm, .750", gasket/joint, 5/8"
J 14mm x 1.25mm, .375", gasket/joint, 13/16"
L 14mm x 1.25mm, .500", gasket/joint, 13/16"
N 14mm x 1.25mm, .750", gasket/joint, 13/16"
P 12mm x 1.25mm, .500", gasket/joint, 11/16"
S 14mm x 1.25mm, .689", taper, 5/8"
V 14mm x 1.25mm, .441", taper, 5/8"
Y 10mm x 1.0mm, .375", gasket/joint, 5/8"
Z 10mm x 1.0mm, .500", gasket/joint, 5/8"
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.
