Also, much the oil inside the valve cover is in the form of mist, and this mist
can remain for a while when the engine is turned off and cause leak past the
valve stems, even if the oil level is below the seals. Also, the crud can
restrict the oil returns from the head that can also raise the oil level over
the head.
D^2
Quoting Rog & Jan van Hoy <vanhilla@xxxxxxxxxxxx>:
> Yes, but... a car that gets only occasional short trip use
> can build up a lot of crud under the valve covers, which
> blocks the drains, which causes the oil to get into the
> cylinders on start up.
>
>|
> | Actually,
> | if you have standing oil inside the rocker covers that is
> above the level of
> | the top of the valve guides, and leaking down through
> them, the bad
> | stem seals are the least of your worries.
> |
>
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