Most fuel gauge problems are the result of a faulty fuel gauge sending unit located in the fuel tank.
Take out the fuel gauge and fish for the magnet inside the fuel tank. Then disassemble the fuel gauge to replace the broken magnet. Reassemble and replace. Done...
I use a fuel pressure gauge.
Whether or not a march fuel gauge will fit a B13 tank depends on the size of the march gauge. You should be able to find a march gauge that will fit on a B13 tank.
On a car, there is a float inside your gas tank. It is attached to a switch that sends the empty.....full signals to your fuel gauge.
You probably have a faulty fuel gauge sending unit.
Defective fuel sending unit.
Generally the fuel gauge sending unit located in the fuel tank is at fault for incorrect fuel level readings.
In the gas tank
When people gift you fuel go to the fuel station on the map and click refuel and it automatically will refuel all of your fuel for all of you tools.
you should go to a car shop for that one!:)
Your pressure gauge may be broken....If it fluctuates, then you know its not your gauge, but if your gauge always reads 80, it may need to be replaced.
Simple check is to ground the fuel sending wire at the fuel tank.If the gauge reads FULL then it is a bad fuel sending unit and you need to drop the fuel tank to replace it.If the gauge reads empty when you ground the wiring then it means you have a bad fuel gauge.I would lean strongly towards the sending unit be bad my 87 the gauge started reading about 1/4 tank less before it failed.
bad ground or float stuck 2 possibilities i can think of
There could be a few problems....wiring issue, the gauge in the dash has gone bad, or the sensor for the fuel float is bad, id check wiring and the gauge first because sending units are expensive and can be a pain to change
Airplanes refuel in the ground. Trucks carrying airplane fuel come and refuel the aircraft.Some jet aircraft have the capability of refuelling in the air.
buy a new viburam for the back of the fuel gauge on the speedo. It is a heat element that reads the sending unit in the tank