[Benson]

There was a guy who had a brand new $4500 rebuilt engine destroyed by a plugged up breather.

He changed the oil and replaced the breather cap with one that was plugged up.

The breather cap, taken from his old engine and installed on his new engine maybe, had a clogged up "Brillo pad" in the breather cap.

The back pressure built up and pumped all the oil out the rear main.

Engine went 70 miles on a tour and seized up.

I never heard if it was a Babbitt or insert engine or how much the repair was.