Incorrect fuel gauge reading

[HAWAIIZR-1]

Okay, ever since I have owned this car I have hated the fact that the fuel gauge reading is incorrect.

I know I must have the fuel tank bladder issue and intend on replacing the tank later this year.

If I fill up the tank it only reads about 3/4 full and in addition when it says it is almost empty I actually have about 1/2 tank and incorrect reading all in between.

Has anyone ever corrected this issue by adjusting their float assembly? I thought I read somewhere that you simply remove the assembly and bend the arm for the float in the direction that will get it away from the collapsed bladder causing the float to hang up on the bladder, but I surely don't want it to be worse.

The problem I have is to take the car to emissions testing it has to be weighed first without spare tire/tools and a full tank of gas. There will already be lost in translation issues here in Japan so I don't want to have to try to explain that the tank is full and the gauge is broken as they might not let me take the test even though they might be able to look into the filler and see that it is full.

Since it is a pretty big job with removal of the bumper I figured I would try this during the winter to replace out the gas tank. I just want to get it fixed for now even thought I know I don't have a full tank capacity with the collapsed liner issue.

Thanks in advance.

Craig