Fuel system, gas smell in cabin

Avidfisherman

Member
Joined
Oct 27, 2025
Messages
11
Fluid Motion Model
R-27 (Outboard)
Hull Identification Number
FMLT2737J819
Vessel Name
Anna Mae
Ranger Tug 2018 R-27 outboard,

Fuel system, A few months ago I over filled the tank, now with the tank only half full Iam getting gas fumes in the cabin, with the door and windows closed it’s bad enough to set off the propane alarm, checking all the gaskets on top of the tank with a flammable gas detector I found that the fuel pick up 90 degree bulkhead fitting is the culprit, , should I be concerned about trying to tighten it ? Or loosen it to use some permatex , if I loosen it will the bottom half fall into the tank along with the pick up tube ? I get 5 bars when I hold my gas meter next to this fitting on high sensitivity, 3 bars on low, way to much, extremely hazardous. ! Problem started right after the high fill up and has persisted ever sence, Now with a little less than half tank it’s still happening, my system is a closed pressurized, no charcoal carbon filter, could there be some other problem ? Also is that a backflow preventer attached to that fitting. Hopefully you can help, Thanks, Rob Jannetti, Sequim
 
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