06-15-2009, 08:12 PM
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CC Member
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Join Date: Aug 2007
Location: Carlsbad,
Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,616
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Not Ranked
Quote:
Originally Posted by Bobcat
Just curious .... when I was racing and checked plugs for detonation , we always looked for flecks of aluminum ( silver specs ) on the insulator . Those specs were small bits of the piston(s) coming off and depositing on the insulator . I`m not familiar with the grey color you mention .... but I learn new things every day .
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Grey/silver.
Both are pistons.
__________________
Jim
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