Re: Spark plug gap question

Posted by Jon Hagen on November 09, 2006 at 18:57:59 from (69.26.29.39):

In Reply to: Spark plug gap question posted by old on November 09, 2006 at 18:10:14:

Opening the gap likely would not help much,as the extra gap needs to be before the carbon fouling on the center plug insulator,which is what bleeds off coil voltage before it can get high enough to jump the plug gap. There are two plug makers that have some plugs with an extra spark gap built into the center electrode (NGK and Champion ??). You can tell them by looking at the top plug terminal,the auxillary gap plugs have a tiny vent hole in the top terminal to vent ozone from the extra internal spark gap.
Also there is the 'Aldor" spark plug that has a thermostatic device built into the center electrode that opens a wide auxillary spark gap when the plug is cold,which automatically closes as the plug warms up.

Replies:

• Re: Spark plug gap question Jon hagen 19:10:14 11/09/06 (0)

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