Quote: Spark plug tubes can cause oil consumption. They claim these work.
i have something similar.
That should take care of that issue. I would remove the pcv and vent from the covers. Plug one side cover start and run the engine. See if you have pressure or vacuum at the other cover. If vacuum you know the intake is still not sealing. There should be a small amount of positive pressure blow by gas. If there is a lot then you can be certain there is a ring sealing problem.
