I am installing a new fuel tank, and I noticed a mfr's tag hanging from the engine (m35) which recommended the fuel return lne empty into the bottom of the fuel tank (using a pickup tube), otherwise, air can enter the system. My original tank did not have this. Is this necessary?
No
Bob : I agree with Stu that you don't need a pick up tube for the fuel return line. As far as air entering the system - makes no since as it's entering a VENTED tank ?!?
Thank you Stu and Ron. I had never heard of this, but there it was, written plain as day on a tag hanging from the engine. I'll try to remember to write down exactly what it says. Tank is installed, but not quite finished.