engine oil screens

[ajwans]

Nobody makes much mention of these:



Are they to prevent catastrophic failures from polluting the
oil system?

I'm guessing since they don't exist in later designs and nobody has
made a replacement part they are unnecessary and should be simply
left out.

andy

[Steve@Rennsport]

Those were anti-aeration screens.

[andyjboy]

Many people leave them out when rebuilding their engines for several reasons but one of the main problems is that the (plastic ?) edging becomes brittle with age & bits fall off into the oil contaminating it.