I'm anxious to know what happened here too. I
had a similar event with a 440 Dodge. I had just
changed to Packard solid core wires, I tried the
motor, it when phoooy, and I found three of the
plugs had blown the insulators right off, leaving
only the metal part screwed into the head with a
1/4" hole where the porcelain used to be. Never
did totally figure it out.
Dick J
--- DOUG ODOM <popms@thegrid.net> wrote:
> Jon, Here is my 2 cents worth. Remember that
> cyl # 2,3,5,8 are all on
> the same intake side so any thing that comes
> apart in one of those cyls
> can get to any of the others. My guess is that
> one of the piston ring
> lands broke from over reving and pieces are
> flying around inside the
> intake to the other cyl. Let us know what
> really happened.
> just another doug
>
> Jonathan Amo wrote:
> >
> > List,
> >
> > Need some responses on the following
> submission,
> > older chevy pickup 350 chevy. Motor was
> possible over-reved. After
> > over-reving engine, truck ran like
> crap.Actuall revving number is not
> > know. plug #2 the electrode was bent forward
> contacting the insulator
> > and porcelain was broke apart, coolant
> drained from cylinder. . Plug
> > number #3 electrode was bent forward
> contacting insulator. Plug #8 was
> > wet coolant fouled. The rest of the plugs
> were just basically a light
> > carbon fouling. Knows factors head gasket,
> possible head and or block
> > cracked.
> > Now you engine guru's would over revving
> engine cause piston to hit
> > plug? I haven't personally seen this. What
> other causes would you think
> > of plug being hit. There is a possibility
> that engine has been
> > overhauled before.
> > Pictures of these plugs is at the following
> address
> > http://www.amoproductions.com/plugs.html
> >
> > take a look and let know what you think.
> >
> > Jonathan
> > http://www.amoproductions.com/268
>
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