Quote:
Originally Posted by trader4
... your PCV design...
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@trader4,
It is not "my PCV" design, it is BMW engineer's design. I have nothing to do with the design.
The X5 M54 CCV setup is dumb. This is because the Intake Manifold sits BELOW the valve cover. In the process of routing oil + vapor mixture, BMW likes it or not, the mixture settles at the Separator.
BMW engineers hope that oil being heavier runs down the other hose to the dipstick tube, while vapor is sucked into the I.M.
Nice thinking but in reality, some oil is sucked in the I.M.
The E53 M54 CCV setup is dumb from day 1. Too complex for a simple CCV issue.
In Honda car, is is a simple valve.
In the E23 from 1980s, it is a simple hose, as conceptually illustrated in the mod in this thread.
Again, it is NOT my design, it is dumb BMW design. Engineers sometimes go forward, and sometimes they go backward. The M54 CCV is an example of backward thinking.