Gas leaking due to expansion

[jimalbert]

Hey guys... I was out doing yard work yesterday and noticed that gas was leaking from my combination perko gas fill/vent.  I went over to the fill and popped the lid, what a mistake.  The gas came flying out faster than what I can put it in at the pumps.  I ran a wire down through the vent line to verify that it wasnt blocked and the wire went through into the fitting at the tank so I dont believe there is a block.  Do you think the combo fill/vent could be bad somehow?  I did have the boat sitting with the nose up in the air pretty hard, but in all my years of owning bass boats that had twin 26 gallon tanks, I have never experienced this.  Any ideas?

 

Thanks,

 

Jim

[ITS A FISHAL]

Make sure vent line doesn't have a low spot in it. Sometimes fuel line for the vent can fill up with fuel. This will cause the same issue. Even create the pressure. The weight of the fuel in vent line. Need to blow fuel line out. Make sure fill cap is off before you do.

Sent from my SM-N900V using Lake Ontario United mobile app

[Sk8man]

The only time I ever experienced anything like that was when I had just got my boat and I filled the 60 gal tank too full and the heat of the day caused the gas to expand a lot and it overflowed  from the pressure build up.

[jimski2]

A six gallon tank takes six and a half gallons to top off. Do not do this as the half gallon is needed for expansion on a hot day or in direct sunlight.

[jimalbert]

Thanks... I almost figured it was an expansion issue and it hasn't seemed to do it since I lowered the bow as far as I could.  

 

Jim

[ontherise]

Otto experienced this on the homestead a couple years ago, on a diesel tractor. I forgit what he said caused it.

[muskiedreams]

Sometimes it depends on what you eat You might have to let the pressure out here  But you could cause someone to