Fuel tank vent puking gas !! - Lateral-g Forums

Musclerodz · #1 08-23-2011, 02:55 AM

the issue is too much pressure in the tank. constant return with corvette regulators does not help either, keeps the pressure in the tank up. we have the same issue here on rock valley tanks as well. I am hoping the vaporworx setup will solve some of the issue, but doubt it will solve puking when tanks are near full. charcoal or vapor cans is the only way to properly fix it.

**GregWeld** · #2 08-23-2011, 08:04 AM

The other issue is the vent line may be too small -- once some gas gets up inside the vent tube -- the pressure builds up behind it and pushes it out. A LARGER vent tube will allow the pressure to pass the fluid and not push it up and out. Think of a straw....

Hard line has a larger inside diameter... so hard line the same OD would be a better solution than rubber hose... BUT here's my other thought:

DO NOT loop it -- that effectively makes a "P" trap out of the vent line and any "fluid" would sit in the bottom of the "loop" and any pressure behind it would push that fluid up and out of the vent. The fluid in the loop would also block any incoming "make up" air.

ccracin · #3 08-23-2011, 09:16 AM

Quote:

Originally Posted by GregWeld

DO NOT loop it -- that effectively makes a "P" trap out of the vent line and any "fluid" would sit in the bottom of the "loop" and any pressure behind it would push that fluid up and out of the vent. The fluid in the loop would also block any incoming "make up" air.

BINGO, You are exactly correct. This will not be done on ours. I added a -6 vent fitting to our tank as well as the vented cap. Hopefully it is enough.

**GregWeld** · #4 08-23-2011, 10:01 AM

Quote:

Originally Posted by ccracin

BINGO, You are exactly correct. This will not be done on ours. I added a -6 vent fitting to our tank as well as the vented cap. Hopefully it is enough.

Of course I am!!

This ain't my first goat rodeo!

ccracin · #5 08-23-2011, 10:31 AM

Quote:

Originally Posted by GregWeld

This ain't my first goat rodeo!

You ever been Bucked Off?

**GregWeld** · #6 08-23-2011, 05:13 PM

Quote:

Originally Posted by ccracin

You ever been Bucked Off?

Sometimes it feels like the goat is riding me!

Siv · #7 08-23-2011, 07:36 PM

Still running great! I would have bent up my own lines, but I have very little time and very little money. Everything in the pictures I posted I already owned from previous projects.

Thanks again Blown353