Loop in gas tank vent line?
What is the reasoning behind putting a loop in the vent line and putting the loop on top of the gas tank on a gas motor?
Years ago we never did this and had no problems that I know of.
Some are saying so the gas doesn’t leak out the tank when you go inverted.
But when you go inverted the bottom of the vent line is well above the height of the tank, so what is the purpose of the loop in the vent line?