PeachParts Mercedes-Benz Forum - View Single Post - W123 617.952 Non-CA Air Cleaner Oil Separator Sealing DIY

JHZR2 · #10 07-30-2011, 10:26 PM

It will not reduce the ability to cool, I disagree with that. Lots of work has been done in cooling chemical reactors and how packing with the right wall contact does a better job.

Having a high conductivity (metal) packing with good contact to the outer edge would enable more cooling surface in the middle of the gas path. IF condensing junk out was desired, this would do a better job.

Im not convinced that "condensation" is actually what they are going for. The moisture and fuel vapors from blowby would be better off re-combusted.

The issue is how to get the oil mist that is made from the camshaft and under the valve cover knocked out so it isnt combusted and/or getting into the turbo and intake.

The key to doing this is a gas path that helps to cause the mist to agglomerate and settle. You want this to happen in the tube or the separator. You dont want oil mist going back into the intake air path at all (which is why a 240d and others have them), but particularly when the EGR is present due to the soot load.