Non-GM knock sensor Q

[Jason Weir]

Frank F Parker wrote:

> > >I'm intrigued by the phrase "or seen in plug cuts"; what does a
> plug
> > >shown when there's been knocking?
> > >
> > >
> > Looks like little tiny fly turds on the center porcelan.  Just about
>
> > need a magnifier/jeweler's loupe to see em.  May also look
> > kinda like pepper flakes, real fine.
> > Cheers
> > Bruce
> >
> Bruce,
>
> Is this true for unleaded gas- in other words are the flakes lead
> deposits?

Melted pieces of the piston sticking on the plug,  .... Not you see why
detonation is bad... couple that with a lean mixture and poof you have
burned piston.... JTW

--
Jason Weir
88 Wrangler - 258 Chevy TBI
Fayetteville, North Carolina
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