SeaDog SC
Member
Hello All, this is SeaDog SC from Lake Hartwell SC / GA. We have a new 2021 24LXL, took delivery on April 1, hope April Fools day delivery is not an omen...
Love the boat, love the Yamaha 175 Max Sho, but hate that the recent gas fill was a big problem. The boat has just passed 38 hours and the first 2 fuel fills went without issue and the fuel flowed into the tank from the 5 gallon cans without a burp, (I fill on my dock, with boat on a lift). The last fill was taking 15 to 20 minutes to take in 5 gallons, the boat needed about 20 to fill the 28 gallon tank, so roughly an hour to get gas in it! I thought it might be the flapper at end of the fill tube, so rigged a rod to hold that open while filling, did not help. Now I suspect I have a problem with the tank vent, on the L model the fuel tank is above the deck, in the L compartment. There are two vent lines both on top of the tank, one to the stern of the tank one more forward, they join together and go the EPA mandated carbon vent cannister and then the hose exits down a black hole under deck with the battery cables and the fuel line. Where the end of that air vent goes I can't tell, but I don't like that is under the deck where it could be exposed to water, the vacuum caused by using fuel from the tank could be sucking water up into the carbon cannister. Could this be the source of the problem? A secondary concern, is the air vent lines lay flat on top of the tank, I probably overfilled the tank during the second fill, while the boat is on the lift it is level, when it is lowered into the water the stern drops about 10 to 12 degrees from level, which could mean liquid fuel could have gone from the stern fuel air vent line down into the carbon cannister? Could this damage or block the cannister? Anyone had a similar problem or have any suggestions to relieve the issue?
Love the boat, love the Yamaha 175 Max Sho, but hate that the recent gas fill was a big problem. The boat has just passed 38 hours and the first 2 fuel fills went without issue and the fuel flowed into the tank from the 5 gallon cans without a burp, (I fill on my dock, with boat on a lift). The last fill was taking 15 to 20 minutes to take in 5 gallons, the boat needed about 20 to fill the 28 gallon tank, so roughly an hour to get gas in it! I thought it might be the flapper at end of the fill tube, so rigged a rod to hold that open while filling, did not help. Now I suspect I have a problem with the tank vent, on the L model the fuel tank is above the deck, in the L compartment. There are two vent lines both on top of the tank, one to the stern of the tank one more forward, they join together and go the EPA mandated carbon vent cannister and then the hose exits down a black hole under deck with the battery cables and the fuel line. Where the end of that air vent goes I can't tell, but I don't like that is under the deck where it could be exposed to water, the vacuum caused by using fuel from the tank could be sucking water up into the carbon cannister. Could this be the source of the problem? A secondary concern, is the air vent lines lay flat on top of the tank, I probably overfilled the tank during the second fill, while the boat is on the lift it is level, when it is lowered into the water the stern drops about 10 to 12 degrees from level, which could mean liquid fuel could have gone from the stern fuel air vent line down into the carbon cannister? Could this damage or block the cannister? Anyone had a similar problem or have any suggestions to relieve the issue?