RE: Hot/Cold Plugs (was Interesting message)

["Barr, Scott" <sbarr@mccarty-law.com>]

Jim said: << If you could cross section a "hot" plug you'd see the
ceramic is a long thin cone with the contact point to the metal far up
the spark plug body.  A "cooler" plug has more ceramic and contacts
down closer to the electrode.>>

Aha.  There's a good diagram of what Jim was describing at:
http://www.howstuffworks.com/ignition-system2.htm

Scott