[CLV8]

Thank you for your replies.

To reply to Brent, my engine is exactly like you sold it to me. I let the 2 breathers you installed on the valve covers. I have no PCV. Intake gaskets are in perfect condition, no cracks or anything else.

Moreover I have no breather on intake manifold. Could it be a problem ? too much pressure in engine ?

Crosshatch on each cylinder is OK, absolutly no shiny cylinder walls.

As I wrote before I've noticed worn valve seals and worn valve guides. WHY with an engine with only 13000 miles ?

Thanks, OliveR