"I,m in the process of fitting
"I,m in the process of fitting a new engine.I let my old fuel gauge go with the old engine instruments by mistake, it was a volvo penta one.
The sender unit in my fuel tank has 2 wires coming from it, a black which is connected to a lug on the tank and then is goes away up to the helm connected to the neutral block, the other wire is a green and yellow which I think is the sender wire.
I have bought a new fuel gauge( not a volvo one).
today I have been trying to wire up the new gauge with no luck,I can get the gauge to go up to 3/4 of a tank which is about the right amount of fuel in the boat, if i disconnect the sender lead the gauge still reads 3/4 of a tank, I dont understand why.
can anybody explain how the fuel sender works? I can not work out how it sends a signal with only 1 wire, surely there needs to be a circuit.
thanks"
"I,m in the process of fitting a new engine.I let my old fuel gauge go with the old engine instruments by mistake, it was a volvo penta one.
The sender unit in my fuel tank has 2 wires coming from it, a black which is connected to a lug on the tank and then is goes away up to the helm connected to the neutral block, the other wire is a green and yellow which I think is the sender wire.
I have bought a new fuel gauge( not a volvo one).
today I have been trying to wire up the new gauge with no luck,I can get the gauge to go up to 3/4 of a tank which is about the right amount of fuel in the boat, if i disconnect the sender lead the gauge still reads 3/4 of a tank, I dont understand why.
can anybody explain how the fuel sender works? I can not work out how it sends a signal with only 1 wire, surely there needs to be a circuit.
thanks"