Replacing Fuel Sending Unit on 1939 LaSalle

[John Bray]

Do I have to remove the gas tank to change the unit or can it be done through the top of the tank?
Any advice is appreciated.

[Steve Passmore]

Yes to both questions John. It is on the top but the tank has to come out to do it.

[Bill Ingler #7799]

John: While you have the tank out and before you put in the new sending unit, I make sure the new unit works by hooking the sending wire to the new unit. Then use a wire with alligator clips on both ends and clip one end to the unit and the other to a clean grounding point on the frame. Operate the sending unit arm up and down while checking your dash gauge for like movement. Did not do this on the first unit I ever changed and paid the price of dropping the tank again. Also make sure you install a new gasket between the unit and the tank. Forgetting a gasket can be a great teacher as I have also found out.   Bill