Fuel gauge grounding

Larry E

Petty Officer 2nd Class
Joined
Jan 1, 2012
Messages
161
Is it necessary to have a ground wire to a metal fuel tank for the sender to operate or is the ground from terminal on the sender to the gauge enough?

Larry E
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,097
Re: Fuel gauge grounding

Is it necessary to have a ground wire to a metal fuel tank for the sender to operate or is the ground from terminal on the sender to the gauge enough?

Larry E

Ayuh,... The tank itself should be bonded to the motor's block...
 

ENSIGN

Lieutenant Junior Grade
Joined
Jun 21, 2009
Messages
1,179
Re: Fuel gauge grounding

The tank itself should be bonded to ground for safety reasons.You can daisy chain another wire for the ground lug on the sender.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Fuel gauge grounding

Why would you run a wire all the way from the fuel sender to the gauge? Ground is wherever you find it but since the fuel sender is just a couple of feet from the battery, connect to the negative terminal of the battery. Ground on the guage can be connected to the ground terminal on any other gauge or to the ground buss at the helm. Ground for the fuel sender is the metal outer ring of the sender. The wire connects to a tab on that ring or under one of the mounting screws. Metal fuel tanks should also be grounded.
 

Larry E

Petty Officer 2nd Class
Joined
Jan 1, 2012
Messages
161
Re: Fuel gauge grounding

The tank is aluminum and is located at the front of the boat and sits on a wood platform. The ground terminal on the sender is grounded at the gauge ground terminal but I am thinking that the tank itself is not grounded.
Ayuh,... The tank itself should be bonded to the motor's block...
 

Larry E

Petty Officer 2nd Class
Joined
Jan 1, 2012
Messages
161
Re: Fuel gauge grounding

So Bond-O I am thinking you are saying I should run a ground wire from the main ground wire to the tank itself.

Larry E
 
Top