GK wrote:
> 1994 - 4 cylinder Honda Accord - 310K
>
> I changed the spark plugs 11,000 miles ago after
> I replaced the head gasket. Lately, I seem to be getting
> a rough idle that turns into a very slight vibration at higher
> rpms. I thought that maybe I had solved the problem by
> doing the "Italian Tuneup" (driving the "snot" out of it),
> but it stills exhibits the same problem. The vacuum hoses,
> rotor, and distributor all checked out fine. I haven't cleaned the
> throttle plate or idle air control valve yet.
>
> I figured I would check out the spark plugs first. The plugs
> looked fine, they were not fouled and still gapped correctly.
> However, when I pulled the two outside plugs, the wells that
> they came out of were both filled about halfway with oil. The
> oil did not appear to get past the "rubber boot" of the spark
> plug wire, but it appeared that something wasn't correct. I
> have sometimes in the past check the oil, and found that it would
> be low one day, and normal the next. I often wondered if the oil
> was "migrating" above the engine somehow. Can someone shed some
> light on what might be happening here.
>
> Would it do any harm to try an oil additive like Seafoam?
>
>
> Thanks,
>
> Gary
>
>

oil leak needs new rocker cover "b" gaskets. rough running maybe a
balance shaft timing issue since you've had the belts off.

forget oil additives.