In article <uLoBd.596259$wV.180091@attbi_s54>,
John Crichton > wrote:

>Is it possible that you have an exhaust manifold leak? Why don't you
>look at where the exhaust manifold bolts to the engine block an see if
>you see a spot with black carbon buildup. If so the gasket between the
>engine block and the exhaust manifold needs replacing. If that looks
>o.k. I'd start inpecting the manifold itself for cracks.
>
>BTW, an exhaust manifold leak will typically not generate any problem
>codes unless it is really bad - i.e. bad enough to cause a significant
>drop in exhaust pressure.

So far, I've found no exhaust leak, checked the filter for clogging
or an intake restriction, all the plugs are tight, and according to my
neighbors there's a "tick" sound to go with the huffing. I suppose I'm
too deaf to hear the tick. Piston slap?
How much wind is a reasonable amount to come out of the oil fill hole
in the valve cover? I just checked that and got a pretty solid column
of air howling out. Seems too much to me, but I don't have a whole lot
of experience.

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