Fuel tank venting results.

R

Roy & Dixie

New member
Earlier posts discussed various fuel tank vent problems and solutions. I posted that I had run my tank vent line from one tank to the other, placed a "T" in that line at it's highest point, and run a single vent from that point to a thru hull fitting mounted high as possible and exiting into the splash well area, not directly overboard. On my last trip I topped off my tanks by inserting the fuel nozzle as far as possible into the fill neck. The fuel flow was automatically shut off when the fuel reached the nozzle, the end of which is now below the new vent fitting level, and no fuel came from the vent while fueling. I was on my way to the launch ramp and noted no fuel had been spilled into the splash well en-route, while launching, or under way.

I only fuel as I am close to a launch site or at a marina with some distance yet to travel before stopping for the night, so fuel expansion should never be a problem.
 
On my CD22 I have no problems with venting when running. However, when filling I have to be careful as the fuel level gets near the top to keep the fuel from fountaining out the filler before the nozzole cuts off.

This is a slightly different subject but, on my boat the fuel vents are in the hull sides just outboard of the filler ports. I have noticed that some people have grills on the back or sides of their boats. If I were to put a grill on my boat in this position it would be fairly close to the fuel tank vent. The idea of having a hot grill near a gasoline tank vent makes me reluctant to put a grill on my boat. Seems to be asking for trouble.
 
A piece of Blue Masking Tape around the vent while BBQing was our solution. Put another piece of tape somewhere at eye level as a reminder to uncover the vent later.
 
I had the same concern about fuel vents when I placed my grill. I have a rod holder that the grill mounts into, placed in the rear starboard corner. I have not let it stop me from occasionally grilling, but it is a concern...
 
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