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Re: spark plugs

Subject: Re: spark plugs
Date: Wed, 4 Aug 1999 22:51:04 EDT
In a message dated 8/4/99 2:14:21 PM !!!First Boot!!!, writes:

>   Now, if one of you engineers knows whether the discharge of one side of
>  the electrode promotes the nearly simultaneous discharge of the other, or,
>  does the resistance of one side of the electrode go close to zero during
>  discharge so the firing side becomes the sole source of the spark, I'd like
>  to know. 

The spark will occur where the gap is narrowest. When air (the dielectric) 
breaks down (ionizes) its resistance drops to a low value. This loads down 
the voltage, making it impossible for an arc to start up anywhere else. If 
you hooked up two spark plugs in parallel, the one with the narrowest gap 
would fire and the other one would do nothing.

Bob Donahue (Still stuck in the '50s)
52 MGTD - under DIY restoration NEMGTR #11470
71 MGB   - AMGBA #96-12029, NAMGBR #7-3336

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