My 1993 240 has sprung some oil leaks out of the oil filler cap and the oil pan (toward the passenger side rear). Classic clogged flame trap symptoms. I put my hand over the oil filler hole while the engine idled and I did feel some suction. I also blew into the oil separator box and the air blew threw easily. However, I did discover a partial clog on the flame trap nipple that gets connected to the intake manifold.

When I was replacing my temperature sensor I must have cracked and pinched that nipple - DOH. Anyway...it was not totally plugged, but I did feel a lot of restriction when I blew through it.

I replaced the flame trap and the filler cap gasket - easy enough.

Assuming this was the problem will the oil pan gasket leak stop on its own? Or did I hose the gasket.

Thanks