I’ve always had a problem filling my diesel tank full . The boat is a 2014 Marlow-Hunter 37 and at a certain point in the filling process the tank ‘burps’ and fuel will exit the fill hole. Recently I’ve taken to using an external 5 gallon can and a siphon, first filling the can and then siphoning into the tank. After successfully putting about 17 gallons in via siphoning, the tank burped again. I wondered if the tank was full so, rather than trust the gauge, I pulled the sensor out of the tank and manually measured the fuel level with a wooden dowel. I realize this won’t yield the number of gallons directly since the tank is not a regular shape. With this method I confirm that the tank is not full. At the point where I sounded it, the tank is 13 inches deep and there is diesel up to 8 inches deep.
I figure the tank is not properly vented. When I was removing the sensor there was ‘air’ rushing out. Does anyone know where the vent is located? Here’s a picture of the tank and the model number.
I figure the tank is not properly vented. When I was removing the sensor there was ‘air’ rushing out. Does anyone know where the vent is located? Here’s a picture of the tank and the model number.
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