2000 150L EFI oil fitting

[Tallonalaska]

I have a question about my oil system on my outboard. There is a line going from the top of the tank on the engine to the tank iin the boat, This line has a (T) fitting about 3" down from the engine tank and there is an unused port on this fitting. Does this port need to be capped or plugged? Or is this a pressure popoff.?


http://i194.photobucket.com/albums/z...elle/photo.jpg


Chris

[boatmangc]

That is an air vent in case the oil line from the tank to the motor gets restricted the motor can draw oil from the tank.