Engine Breather - Bypass - oil leaks

kharmata wrote: I maybe getting it finally!

About time!

Don't feel bad. It's a very simple system which is often completely misunderstood.

Kevin, if I had excessive blow-by which was resulting in the fouling up of the inside of my throttle body (TB), this is what I would either make or buy to install between the front valve cover (on a 2.8) and the fitting in front of the TB.

It's what I mentioned earlier, an oil catch-can.

In my home-made version I used years ago, I used plastic pot scrubber pads to provide the surface area for the suspended oil particles in the crankcase air to condense on. The oil then drips down and collects in the botton of the container. You'll notice the tube directing the oily air goes right down into the mesh material whereas the tube directing the "clean" air draws this air from the top of the container.

You require a way to drain/empty the collected oil out of it, but the container needs to be airtight while in operation.

On a properly operating PVC system (healthy engine), many people install a catch-can like this between the intake manifold and the PCV valve. This is to prevent a lot of the suspended oil in crankcase air from being sucked into the intake manifold/combustion chambers, yet still providing positive crankcase vacuum and the burning of crankcase gases.

On your worn engine, installing the catch-can where I've indicated instead would help reduce/eliminate your TB from being mucked up with oil due to excessive crankcase blow-by.