Ok, that being said, there is 1 red wire for the sending unit, is that correct or is something missing.The battery is exactly where you want to ground it. Don't pick up a ground at a location that is in a daisy chain of connections. If you want a good steady dependable fuel gauge reading, use a dedicated wire directly to the battery.
Ideally it should green wire, not black. directlty from tank to neg battery. no confusion.The battery is exactly where you want to ground it. Don't pick up a ground at a location that is in a daisy chain of connections. If you want a good steady dependable fuel gauge reading, use a dedicated wire directly to the battery.
It's actually "pink", but I'm only mentioning that so you have reference of the proper colors.Ok, that being said, there is 1 red wire for the sending unit, is that correct or is something missing.
I have seen that style of sender somewhere before. Something like this? Has a tab for the ground.Just a side note (although most comments still apply)... I'm pretty sure Jim has the older style sender that has a single pink wire going to the sender and then the sender is grounded either via the screws and a tab somewhere on the tank that has a black (or green) wire attached to it... or would have a ground wire to the plate of the sender.
Humm "Good enough for GW".... Wiring isn't their strength for sure. I wouldn't stop with their method.From my GW manual...
Fuel tanks sender Main / Aux. Pink and Pink/White
Also a white wire. Both connected to sending unit.
Fuel Grounds. Green goes into harness as well - attached to tank.
View attachment 33505
This was good enough for GW. Don't run new wires. Make sure terminals are good. If not cut them off and clean wire with Dremel wire brush, dielectric grease and new crimp connectors. The red and white pair at sending unit runs straight to fuel display/fuel fills - eliminating problems with the green running all over the boat.
Boat grounding can be a confusing subject. Some Manufacturers wire the greens to the zinc system that is bonded together. Battery negative (black or yellow) may not connected to it.
Color codes on my boat are buried inside the split duct but there are two wire connectors on the boat and the sending unit. Not sure if the "green" in in there.
Correct - that style has been around for eons (and is still used). It may or may not physically have a ground tab on it.I have seen that style of sender somewhere before. Something like this? Has a tab for the ground.
View attachment 33514
No, no petrified wires!Granted the wiring may be rotten away, but look around your aux tank area - if THAT was the tank that carried the main grounding wire, then it may still be hanging around in there.