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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