Originally Posted by
franklucas
i have the .24 eb mod pre run i am running trinity plat 30% and a p4 plug. i haven't moved the settings on the carb hsn a 3/4 above flush and lsn flush and idle 1.25 mm, JP-3 pipe. This is my third tank in this engine.
the tank is my third and is brand new lol, i have another brand new tank i will try. i did a leak test on the tank and came up with nothing. i submerged it in water and blew in the pressure nipple and closed off the fuel outlet nipple. i blew as hard as i could(lol) and no air bubbles. i used a high power light and could not see a crack or anything? i have tried new fuel line twice. it definately has air bubbles a lot of them at times at this level of fuel in the tank. under idle the bubbles dissapear but after a high speed pass there back.
I have pulled both the nipples(lol) and CA'd the threads and will try again tomorrow.
Doing a submerged pressure test like that will find an external leak, but not an internal problem. If you have a leak in the internal pickup tube (usualy either a crack in the tube, or a leak where the tube meets the stone filter) then it will start drawing air once the fuel level reaches the point of the leak.
you guys sure the fuel level just isn't too low?
If the top of the stone filter is even slightly uncovered at that point (and there are no leaks, internal or external) then that is indeed the 'empty level' for that tank design. Put the car on a level surface (with the fuel level at the point shown in your pic) and look through the filler opening at the stone.