Re: OMC single hose tank question

[ADAM GIBB]

Ok Guys. Now I think that I have an understanding of how the tanks are supposed to work. It seems that the valves on my tank are working as they should, as I get pressure or vacuum in the tank when moved to a warm or cold space with the cap shut.
This tells me that it is unlikely that the vent it not allowing air into the tank to replace the fuel consumed…UNLESS my fuel line is not pressing the pin in far enough. It is more likely that it is drawing air through a leak and breaking the supply of fuel. Would that most likely be the O-ring behind the Fuel pin that Frank mentioned?