Vapor Lock

[superhoghill]

I conitually have to bleed the fuel lines due to vapor lock. I am running an electric fuel pump and a Holley Mechanical pump regulated to 6-7 psi. The fuel is drawn from the tanks evenly. Does anyone know if there are tanks that are vented or recommend any vents to install on the exiting tanks?

[Daytona100]

Do you have a return line going back to the tank?

[texas-19]

I boat i bought that has filler caps with vents built into the caps

[79centurion]

You have to have a vent, or it will vapor lock. Got to replace fuel with something, or it build a vacuum in the tank. I would have vents put on the tanks. You could have a welder install bungs.
Dan

[tbanzer]

If there are no vents currently, and I would be surprised if they were not in place at the original build. I would tee off a vent from the filler hose.

[DEL51]

You have to have a vent, or it will vapor lock. Got to replace fuel with something, or it build a vacuum in the tank. I would have vents put on the tanks. You could have a welder install bungs.
Dan
Fluids under a pressure less than atmophere will boil at at a lower temp,including blood.

[VDRIVERACING]

Vent off the front of the tank, loop the vent hose a couple of times, and vent out the side of the hull. Also reccomend a shutoff valve at the tank. I have lost fuel going down steep grades while towing, the shutoff valve cured it.

[Mr. Crusader 83]

put an electric fuel switch in it. and draw from one tank at a time.

[gn7]

yeah thats really good idea, that way you can pull each tank into a vacuum one at a time

[Roaddogg 4040]

That's going to hurt...
Steve