johnc@nait.ab.ca wrote:
> Jim:
> I have never seen a video of a spark plug in action but years ago I bought
> a clear plastic plug that came in a kit and was supposed to let you see the
> mixture in the cylinder as it burned. There was a chart the showed
> different colors and indicated if your mixture was too rich or too lean. It
> was really neat to watch the spark but the thing broke in the spark plug
> hole when I went to remove it. Heck of a time to get it out. Can't remember
> if it told me anything or not. Anybody else remember these?
> Godspeed
> Jc
They were called "Colortune", and were available in the late fifties. Seemed
to be a pretty good idea then. May still be available, but they would be
fragile as I believe the transparent material was quartz.
Steve
--
Steve Laifman < Find out what is most >
B9472289 < important in your life >
< and don't let it get away!>
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