dave5237
Well-Known Member
Hi guys. Here's a easy one for you guys. Hooking up my fuel pump ( mechanical pump ) two fuel lines under hood. One's a 1/4 line and one's a 3/16 diameter line. Which line is the supply and wich one is the vent back. I could trace it out but what a pain. I would think the vent would be larger so it vents properly. I started filling the tank hoping it would drain out its lower point but no gas yet. I know one line ( possibly smaller one ) goes to the vapor evaporator. Your help please.