Edited the title to reflect the new questions regarding the fuel tank. Trying to figure out what is inside this tank. I believe strong that it was sitting in storage since 1981, and so if it was a previous tank liner it might be very old. ----------------------- Replacing the fuel hoses today and doing the lines by the tank. The port on the fuel tank that accepts the return fuel hose seems a bit loose. If it was weld on there, then I fear maybe the joint is weakened and could fail.