FUEL BLOW BACK

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wesgillock

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Joined
May 10, 2015
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2008 Z9 fuel blow back when filling tank
Has anyone installed a second fuel vent. The fuel tank has two vents one on each side of tank with starboard vent running across to the fuel venton port side. the vent hose lays flat across the tank to other side and not letting tank vent enough during fill up. want to put second vent behind driver seat on side of boat like port side is.Anyone see a problem with this before I start drilling hull gunnel?
 
When I am below 1/4 tank I have to fill real slow till about 1/2 to 3/4 full then I can fill real fast. The air can't escape fast enough from the tank to allow more coming in then going out causing fuel blow back from the fill .
 

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