I'm replacing my fuel tank with a Moeller 150 gallon fuel tank. I read that the tank needs room to expand, which I think I have covered, it's going to be close. Anyways, I got a belly style tank, but it the bottom doesn't fit flush I heard that a poly tank should not have void underneath it. So I was thinking of using expanding foam underneath it to make a solid floor for the tank. Also, would it be okay to use a couple 2x4's across the top to secure it from bouncing up and down or would that prevent it from expanding?
Second question is with grounding the tank. I want to make sure I understand it correctly. Do you run a ground wire from the fill on the boat, to the sending unit, and then from the sending unit to somewhere on the motor or a neg. post on a battery? Or am I wrong?
And the sending unit that came with the tank has a plug for the gauge. I haven't seen that before, but it's only my second tank I've seen, the first being the old one I pulled which just had a single wire coming from the center of the sending unit which I assumed was for the gauge. Anyways, is there a plug I buy to fit this one and if so, how do I hook it up, or do I need a new gauge? Or do I cut the plug off and splice, but if that, how do I splice it?
Thanks for any advice,
Grady
Second question is with grounding the tank. I want to make sure I understand it correctly. Do you run a ground wire from the fill on the boat, to the sending unit, and then from the sending unit to somewhere on the motor or a neg. post on a battery? Or am I wrong?
And the sending unit that came with the tank has a plug for the gauge. I haven't seen that before, but it's only my second tank I've seen, the first being the old one I pulled which just had a single wire coming from the center of the sending unit which I assumed was for the gauge. Anyways, is there a plug I buy to fit this one and if so, how do I hook it up, or do I need a new gauge? Or do I cut the plug off and splice, but if that, how do I splice it?
Thanks for any advice,
Grady