Fuel Gauge

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T

Tonja

I have an 85 Catalina 27 and the fuel indicator in the cockpit does not register the amount of fuel in the tank. Does anyone know why this would occur and how it can be fixed?
 
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dave

Fuel Guage Fix

Well, I could be a few things. I replaced both the gage and the sending unit two years ago. Both easy fixes. I'd say about 4 hours time. Before spending money though, try looking at the wiring. That is your most likely culprit. Start behind the engine panel and check to see if there are any loose or damaged connections. If so, try and fix, if not, go to the fuel tank and check the connections there. You should see two wires and a ground attached to the top of the tank. Check these. If the wires are damaged, you can replace them easily. If they look, OK, I'd try replacing the fuel gage first, if no luck and you can, try to replace the original guage and then replace the sending unit. The directions inclosed in the telflex(/) unit are self-explanatory. Finally if that does not work, replace the original gage with the new one and you should be in business. My friend had the boat yard replace both on his new to him '87 C-36. Come to find out, the wiring was too close to the heat exchanger and had melted. Simply replacing the wiring would have fixed the problem. I hope this helps. dave bousquet C-30#5367 C'est Sea Bon
 
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Ron H.

Chances are good it's the sending unit, that's the most common failure. After checking the wires and connections remove the sending unit from the top of your fuel tank. Connect an ohm meter from the center stud to anywhere on the mounting surface. When you move the float the resistance reading should move between 35 and 240 ohms (or close). If the resistance doesn't change or moves erratically then the sending unit is bad. They are made by Tempo and can be found at any marine parts place, about 25 bucks.
 
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Tonja

Thanks

Thanks very much. I will work on the process of elimination. Tonja S/V Diva
 
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