rear main leak

Any chance you could napkin sketch how you have the plumbing for running both types of systems? I know how to do them separately, but curious how that plumbing works when combined. Breathers on one side of the engine, pcv on the other? Or are you venting on the valley pan or somewhere else? Do the little valves on the pan evac lines keep them from being open when not at wot? I could also pop a connection point into my fuel pump block off plate if necessary.


It’s pretty simple. I do not hook them together. It’s two separate systems.

So run a PCV valve to one valve cover and then a pan evacuate to each valve cover.

Do not use any breathers. It needs to be a sealed system to work and a breather will just let outside air into the system and you lose your crank case pressure drop.

So it plumbs just like two different systems.

For the separator, the hose from the PCV valve goes to the IN on the separator and the OUT goes to the carb.