Fuel Gauge

M

Maxwell

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Member
Joined
Jan 21, 2009
RO Number
31042
Messages
378
Hi Guys,

Lately I have noticed that the needle on fuel gauge on my port side twitches alot. The starboard side is stable and gives a good reading however I cannot get an accurate reading off of the port.

Any suggestions on a good place to start looking? Could it be a loose wire on the sending unit? Back of gauge? Or does one or the other need replacing? All of the above?

In light of this I run the genset off of the starboard tank and generally keep an eye on fuel usage based on run time/distance but would like to see it working.

The boat is a 2000 Carver 350 Mariner with Horizon 7.4l engines.

Any insight is appreciated.

max
 
I'm gonna guess there's a loose connection somewhere. Maybe at the gauge, maybe at the sender.
 
Most likely it's the sender unit assuming you have the comman floot moving a slider over resistive wire. However, before getting at it check all the wiring from the guage to the sender. Make sure nothing is loose or corroded.

dave
 
Since you mentioned a port engine I'm assuming you have two engines and two fuel gauges. I'd start by switching the wires at the guages and see if the twitch moves to the starboard guage. Then do the same at the senders. That usually helps define where a loose connection or bad gauge might be.
 
If it turns out that the senser is bad, look into replacing both with a Centroid sender (Google it). All electronic with no moving parts. Very stable and accurate.
 
Thanks for the advice. I'll try and have a look at it this weekend if the storms they are forecasting don't materialize.

max
 
It's just a fuel gauge - why even bother?

I have never used on in my boating life
 
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