www.iFourWinns.com

At the exit of the tank i have one nut 1-3/16 approx. and a 3/4 diameter square "nut" attach to the first where is located the connector to the fuel line(checkvalve).whom of the two i need loose to check the interior fiuel line and /or leaks?

At this point, I would try to get some drawings from the manuf of the fuel tank/fitting arrangement. If you can get the nameplate data off the tank, may be able to locate what you need via internet search. This is a little farther down the line then I would have expected. This should be from your boat with a decent pic of the tank-top. Does that help??

_________________
Walt B
"Debt-Charged"
Black '07 H210SS
6.2L Bravo One turning a 21P HIFive
Wakeboard Tower with Perfect Pass Stargazer version
Missouri River; Kansas City, Mo.

i need specific info. about who of the two be loosed.

We're beyond my experience now.
Judging from the picture, you need to hold the 3/4" fitting, and turn the 1 1/2" fitting to remove both from the fuel tank. I would only do so if the tank is less than about 2/3 full. I would expect there to be a tube or pipe attached that takes a suction from near the bottom of the tank, and my guess is that has become clogged, damaged, or otherwise blocked.

_________________
Walt B
"Debt-Charged"
Black '07 H210SS
6.2L Bravo One turning a 21P HIFive
Wakeboard Tower with Perfect Pass Stargazer version
Missouri River; Kansas City, Mo.

I replace the in-tank line, but i have the same problem, the filter dont be full at anytime what other option i have? I loose the fuel tank cap and it dont suction air at anytime.I will be crazyyyyyyyyyyyyyy!

You've certainly narrowed down the possible culprits. I don't know what else we can tell you.

You've checked everything else in the fuel system including pump, filter and carb... they all work without the gas tank. Logic dictates the problem HAS to be upstream of the place you separated to run the portable tank (which was were?). Either internal to the fuel tank, fuel line, gas cap/vent, or check valve.

_________________
Walt B
"Debt-Charged"
Black '07 H210SS
6.2L Bravo One turning a 21P HIFive
Wakeboard Tower with Perfect Pass Stargazer version
Missouri River; Kansas City, Mo.

i think that the vent dont be the problem because when im loose the fuel tank cap it work as vent, what another thing i do?

i put an electric 4to 7 pounds of pressure pump and the filter turn in full, what you Think is the problem? is the camshaft or the new fuel pump? can i connect the electric pump permanently?