Charles Branch
Member
Since purchasing my 2130 about ten years ago I have managed just fine using a dip stick for a fuel gauge. But I recently bought a new Starhill Jawz tool for my endless privet war, and it is so much fun that I lost track and ran out of fuel for the first time ever. That experience has made me vow, "NEVER AGAIN!" Today I removed the fuel gauge sender to check it out. As I move the float up and down the resistance varies from 2.4 ohms at the bottom (about 60 degrees below horizontal) to 53 ohms as I raise it up to about 20 degrees below horizontal and then suddenly goes to infinity as I raise it farther. I don't know if that sudden change is correct, but does the range in the bottom (near empty) area seem reasonable?
I don't yet know if the meter is good. My service manual wiring diagram indicates that 12 volts goes to the plus side of the meter, and from the other terminal the wire goes to the terminal on the fuel sender. I assume the wire that was dangling from a screw on the sender just connects to a ground.
Correct?
The wiring diagram does not show a series resistor in the circuit. Does that mean that the meter itself has enough resistance to limit the current? I'm a little nervous about hooking it up, since 12 volts through 2.4 ohms would give about 5 amps. And if I add an inline fuse to protect the gauge and sender, what should I use?
Thanks,
Charlie
I don't yet know if the meter is good. My service manual wiring diagram indicates that 12 volts goes to the plus side of the meter, and from the other terminal the wire goes to the terminal on the fuel sender. I assume the wire that was dangling from a screw on the sender just connects to a ground.
Correct?
The wiring diagram does not show a series resistor in the circuit. Does that mean that the meter itself has enough resistance to limit the current? I'm a little nervous about hooking it up, since 12 volts through 2.4 ohms would give about 5 amps. And if I add an inline fuse to protect the gauge and sender, what should I use?
Thanks,
Charlie