Jim 02runner

Hi, First post. I'm replacing the valve cover gaskets and of course the left side posed an issue. The harness cracked a little and a piece, 1/4" X 1/8", dropped into the valve train. I know what well it fell into to but there's no way to get it. I looked in my Toyota Service Manual but could not find the location of the oil return holes. I don't want the plastic piece to clog a return.

I really appreciate the help!

Thanks,
Jim