I need help guys! Options

[porsche-tom]

so i posted before about my about replacing my fuel pump because whenever its hot out it just stops. i cleaned out the gas tank, replaced the fuel lines and replaced the pump with a rotary fuel pump previously recommended. while on the ramps it started fine. i drove it out of the garage and one block away it died again (its about 85 degrees out). it now will not start but i can hear the pump kicking on when ever i turn the key. i am going to wait until tonight when its cooler out and see if it changes but im getting pretty frustrated (IMG:style_emoticons/default/headbang.gif) . does anybody have any ideas?.....please
1972 1.7 carb convert

[porsche-tom]

the return line was previously blocked off. the lines are in the correct places and it has 2 gallons of fuel that should be enough fuel?

[r_towle]

the return line was previously blocked off. the lines are in the correct places and it has 2 gallons of fuel that should be enough fuel?

It's a fuel problem.
So you state that you had it working before with no issues with the current hose.
It's either out of gas and not enough to get into the line, or its a kinked hose from when you put the tank back in after install.
It can work by using the return line, but it's about 2 gallons of fuel cause of the 4 inch pipe in the tank.
That is why I said you may have swapped hoses...
You said it worked while jacked up, did not work when on the ground....So it's a fuel level issue.

Could also be a kink
Get a mirror and verify there is no kink.
If you are patient with a mirror and flashlight, you can see almost all of it except the loop that goes toward the drivers side from the pump to the filter if it's in the 75/76 location.

Not a typical place to kink...more likely to kink right under the tank and sometimes you just need to loop it the right way from underneath and it will be ok.
Other times you need to pull the tank and do it again...

Tests I would do.
Is there fuel in the engine bay when the pump is running?
Should be a 65 psi stream of fuel...squirt it into a gas can.

If no fuel there, start looking for the kink.
Look for the kink first before you add more fuel to the tank.
You may need to pull up the tank to fix the kink.