Re: [FWDLK] Spark Plugs

[Everett Moore <matador60@xxxxxxxxxxxxx>]

Plugs do run hot and cold, its the way they are designed.

the distance from the tip to where the porcelain touches the

side of the plug rates how hot the plug is. the shorter the distance the colder the plug.

It takes time for the heat to travel from the tip to the water jacket.

If the plug is to hot, when you run down the road you will get preignition

an burn a hole in the top of the piston, the plug tip is so hot it fires the gas mixture

before the plug is timed to fire it. 

 

Everett

Reggie Knowlton <Reggie_Knowlton@xxxxxxx> wrote:

I believe you people are missing the point. Use what is recommended for the
engine in your car. Plugs don't run hot or cold, it's the amount of cooling
available from the water jacket in the cylinder head.