Which autolite plug is hotter?
Autolite indicates the heat range with the last digit of the part number. For example, 3923 has a heat range of 3. The higher the number, the hotter the plug. The lower the number, the colder the plug.
What does Champion RV12YC fit?
Champion 406 RV12YC Spark Plug. Dependable performance. This Champion spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear. Fits Chris Craft, Chrysler, Crusader Marine, Indmar, and Mercury Marine engines.
What happens when you run too hot of a spark plug?
If the tip of the spark plug is too hot it can cause pre-ignition leading to detonation/knocking and damage may occur. If it is too cold, electrically conductive deposits may form on the insulator causing a loss of spark energy or the actual shorting-out of the spark current.
Do hotter spark plugs make a difference?
Found in many passenger vehicles, hot spark plugs have more insulation to transfer the heat slowly, which keeps the temperature high enough to burn off carbon deposits and avoid premature fouling. This helps allow for more time between spark plug changes.
What does a champion rc12yc spark plug fit?
RC12YC Spark Plugs
| Center Electrode | Copper Core |
|---|---|
| Thread Size | 14mm |
| Tip | Projected Tip |
| Type | Resistor |
| Fits | BRIGGS & STRATTON GAS ENGINES — Intek, Vanguard single cylinder OHV KOHLER GAS ENGINES — Command OHV, K series, 16.0/TH16, 18.0/TH18 |
Can I use shorter spark plugs?
Broken electrodes If the electrodes are broken off or flattened, it is likely that the wrong spark plugs are installed. A spark plug that is too long can cause extensive damage to your engine while a short spark plug can cause poor gas mileage and spark plug fouling.
Are Accel spark plugs good?
These spark plug are great, put headers on my 305 sbc, the headers hug the engine nicely but they were to close to the header, these were a life saver and they work well too. No issues.
What is the difference between the r43s and the s?
The R43S was a bit too cold for street driving. The S is an extended tip, the T is a tapered seat . If you have a GM small block, it will not use the tapered seat. You can tell by looking at the spark plug hole base.
What is the difference between AC Delco r43ts and cr43ts?
– Answers What is difference between ac delco r43ts and cr43ts? The CR plugs are commercial grade and have a thicker electrode and ground. It’s also a slightly hotter plug than the R. Basically a heavy duty plug used much in GM small block TBI trucks and other GM vehicles.
Will a r43s plug fit on a 383?
If you need a 5/8″ taper seat plug, the R44T or R44TS will work. SO, using a R43S plug on your 383 should be just fine. Maybe 42’s would be better if you race it. OReilley told me this past week R44S are unavailable now only R43S and R45S.
What is the difference between R44 and R43 spark plugs?
The R44 is a 13/16″ hex gasketed plug. Many liked to use R44S for the extended electrode. The Z28 used the R43 sparkplug with it’s 11:1 compression.