New Kevko Pan with Crank Scraper

cookietruck said

Seems they would scrape windage from the rotating assembly and push it down to the sump?

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This^^^. What they call a scraper isn’t really doing much if anything.

The windage tray does more than one thing.

It breaks up the oil being slung from the crank.

It reduces the entrained air in the oil.

And it keeps the oil in the pan from getting bounced up back into the rotating assembly.

There is never a reason to not run a windage tray unless you have a dry sump.

Even then they help.