[DeTomaso] E3 SPARK PLUGS

[Doug Scott]

Basically indexing plugs mean you use various thickness washers to make the
open side of the ground electrode face the combustion chamber.  If you look
at the end of a spark plug you will see the ground electrode shrouds the tip
of the plug as it wraps up over the tip.  When you index, you are just
making sure that the shrouded area is not facing the combustion chamber.

 

doug

 

From: Jeff Detrich [mailto:jjdetrich at gmail.com] 
Sent: Monday, August 26, 2013 10:20 AM
To: Doug Scott
Cc: detomaso at poca.com
Subject: Re: [DeTomaso] E3 SPARK PLUGS

 

 

On Sun, Aug 25, 2013 at 6:13 AM, Doug Scott <doug at pickbbs.com
<mailto:doug at pickbbs.com> > wrote:

If you want to get the absolute max out of standard spark plugs, index them
on installation to get the ground electrode out of the way.

 

I'm not familiar with indexing the plugs, what is it and what does it do?

 

Thanks,

 

Jeff 

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