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I'm wondering if some type of baffle would solve the clean side problem. Could the clean side oil pull simply be caused by the engine trying to pull air from anyplace it can get it during hard acceleration? If it's possible to suck air into the engine through the clean side tube because the engine can't get enough through the air filter, I'm guessing it would pull oil right up through that tube with the air. If not pulling air, it may be creating vacuum at both the clean and dirty sides IF the engine is somehow starving for air through the filter.
Seems plausible. It also seems that some of the variability we are hearing about in what different people are seeing may be caused by the differences in the restriction of their intake systems. The engine is going to get the air from the path of least resistance.
I'm saying that a baffle that would discourage air intake from the crankcase but allow air to flow in the other direction would seem to be a very simple solution. A baffle, or perhaps better yet - something like an old PVC valve with a check ball on the clean side.
Crazy?
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