Hello all,
I have been working, this week, on the fuel system of my 1978 6.9.

The fuel tank is removed and I am puzzled about a few things.

First is that the fuel sending unit has no wiring harness. (No wonder the gauge is not working) Can not understand what would cause someone to remove it?

Second question is about the swirl pot. The top is not on the pot, it is just rattling around inside the tank. How do I get the top back on?

Third question has to do with the cleaning process. I have blasted the tank at the car wash and then at home repeatedly. Then washed with kerosene twice and let sit overnight with kerosene then blasted with water again a few times today. It is now sun bathing with an occasional blast of air.
What is the consensus on pour in tank liner? And do you have any other advise on what I should do before reinstalling the tank?

Also I have a fiberglass reserve tank that was made for a Mercedes that I hope to install. It fits nicely in the trunk with a nice angle back to allow for luggage.
Is there a prescribed method to plumb the tank into the main tank?

Thanks in advance for your time and help.