Cam cover to intake breather hose restrictor?

[OllieR]

Hi all, done some searching hoping for a quick answer on this,

There is a metal restrictor in the hose from the cam cover breather to the intake pipe between AFM and Turbo, should this be removed when installing an Oil Catch Can in this line I.e using plumb-back method.

thanks,

Ollie

 

Edited September 3, 2019 by OllieR
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[Dose Pipe Sutututu]

There's a restrictor? I've never seen one I there across many RB25s unless I've never noticed.

Anyhow yes, you want a good vacuum to help move the oil vapours and also help equalize crank case pressure (if any).

[OllieR]

I found it by chance when I cut the hose in half to join into it. Will take a photo tomorrow.