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  1. O

    351 Cleveland losing prime

    The problem seems to be fixed. Cross my fingers, knock on wood and all that stuff. I now have a Holley pump, before it was a POS electric fuel pump and before that just a regular mechanical pump from Advance Auto. I had it mounted right next to the tank on the trunk drop off. I moved it under...
  2. O

    351 Cleveland losing prime

    I think the Holley needs close to 6.5 fuel pressure. I just haven't dialed a thing in yet.
  3. O

    351 Cleveland losing prime

    I reckon this didn't really cost me anything major. I was totally restoring the car. Everything on it is new or rebuilt. Cost me a lot of time and frustration though. When I bought the car, it was running but in really bad shape. I put a new fuel tank, lines pump and carb and it wouldn't stay...
  4. O

    351 Cleveland losing prime

    I've plumbed a new electric fuel pump in and it cranks up and holds pressure. It pours gas out the tank line now, Go figure. I've spent countless hours trying to figure out what was wrong. Hopefully it's cured.
  5. O

    351 Cleveland losing prime

    Maybe have it! My electric fuel pump was just shutting off after a few minutes. I took one off another one of my Mustangs and put it on and it ran for 15 minutes and the fuel pressure remained constant. What's the chances of buying a bad new mechanical fuel pump then buying a bad new electric...
  6. O

    351 Cleveland losing prime

    Replaced the sending unit. I took the hose off the pump and there was no gas coming out. I held it towards the ground and it started pouring out. I drained a little over three gallons out of the tank till it was empty. Put the new sending unit in and put the three gallons of gas back in it and...
  7. O

    351 Cleveland losing prime

    It just cut off again. I've been cranking it every day for the last week. Been cranking up fine. I decided to let it sit there and run today. After about 4 minutes at an idle, it cut off. No fuel coming out of the gas tank. I took the gas cap off and took the little one foot line from the tank...
  8. O

    351 Cleveland losing prime

    I'm still working on it. Have not had time to put the new sending unit in yet. I went back and tightened all the hose clamps. I was thinking of the vapor line also. Is that the hose that is hooked at the top of the gas tank? I understand with the cap off it would have nothing to do with it but...
  9. O

    351 Cleveland losing prime

    Yes but the filter is going in the right direction and that still doesn't explain why when I take the hose off the electric fuel pump to the gas tank which is only a foot long with no other connections or filters and hold it down to the ground, no fuel comes out. I can suck on it and hold it...
  10. O

    351 Cleveland losing prime

    Interesting. It does it no matter how much fuel is in the tank. Whatever the situation is, when I remove the fuel line from the tank to the electric fuel pump, no fuel will come out the tank. It should be pouring out shouldn't it? Gravity would make it come out right?
  11. O

    351 Cleveland losing prime

    That makes perfect sense. I will try the new sending unit. Thanks! It's always good to discuss problems and get other peoples views.
  12. O

    351 Cleveland losing prime

    That's what I keep saying, when you take the line lose from the pump it should be full of gas and like you say, start pouring out. It doesn't matter if you drive it every day or once a year. My electric fuel pump is right next to the tank so the fuel line to the pump isn't a foot long. The fuel...
  13. O

    351 Cleveland losing prime

    I'm trying to sell the Torino or trade it. You wouldn't believe the crazy offers I've gotten.
  14. O

    351 Cleveland losing prime

    No, it will not start unless I take the line loose from the tank and suck it to get it flowing again. then hook it back up to the electric fuel pump and then you can hear the difference in the fuel pump pumping actual gas instead of air. I've got several of what you call non modern cars and when...
  15. O

    351 Cleveland losing prime

    72 Mach1 is losing prime in the gas line. I replaced almost everything in the restore. New gas tank and lines, new mechanical fuel pump and carb. I cleaned the sending unit but didn't replace it, I have a new one now to put in but I just don't think that is my problem. I got it cranked and it...
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