951 di engine oil fill screw

[Highlander_1004]

Doing top end rebuild on 951 DI, when going to change crank case oil I found this attached instead that couldn't find anywhere online about it or youtube so thought would ask. It is attached into the rave solenoid it is the line with the barb on it coming out of the rave. Thanks for any help or advice on it

Just found out was reading wrong part of Service manual typical

 

[etemplet]

Is that the line with the check valve in it you are asking about?

 

[mikidymac]

Some did use a vent like that instead of a plug screw. I can’t remember where it attached though.

 

[Highlander_1004]

It was the line with the check valve on it. Just found it strange to have a line on it and not a normal plug/screw