[AidanC]

Hi,

I'm retrofitting the full crankcase breather system to my B18. The secondhand breather box that bolts to the side of the engine has a small brass mesh on the air intake pipe. I can't find a part number for it (or proof of its existence in a B18 context) anywhere. I also have a crankcase breather valve, part number 418982, which is effectively a one-way valve. As the brass mesh looks like its seen better days, can I remove it as I'm guessing that the breather valve is all I need?