I have a case 580c just rebuilt motor but fuel keeps pouring into motor i changed the seals on fuel pump but it still pours all the fuel back into the engine can anyone help me out PLEASE

SOURCE: install 1985 econoline 150 302 fuel pump?

not sure on step by step info on the pump installation on these,, but i would first change the fuel filter and check the injectors are not blocked

SOURCE: 1988 xj6 transmission front pump seal

The two seals should be fairly cheap. the seal itself shouldnt cost more than 5-10 dollars for each one. its a little round ring looking piece of metal with a rubber lining. to fix the front pump seal you'll have to drop the whole transmission and remove the torque converter which (will slide off without complications). the seal will be right behind the torque converter attached to the transmission... it should just pop out and the new one should just pop in. Fro the rear seal all you have to do is take out the drive shaft from the transmission and the seal will be on the end of the transmission.. it should also pop out and the new one should pop right in also. However, if the transmission was drivin with little or no tranny fluid and would not go into gear ..( meaning it would just go into high rpms and not move) your gears are probably shot. If it hasnt been drivin an easier way to tell if this may be the case is to look at the tranny fluid and see how dark it is. if it looks like motor oil instead of transmission oil its probably burnt up... if thats the case it will also smell burnt.

SOURCE: how to test fuel pressure

I have been working on a simular problem on my daughter's vehicle. with the following additional symptoms. It only fails while hot. Runing fuel preassure checks, I noticed that the preassure rises from 30 psi while running to 40 psi after turning off the hot engine. This is caused by the expansion of the fuel in the rail. I believe that this hgh preassure is causing the regulator to stick closed preventing the fuel to get to the rail during a restart, (as the preassure drops to 0 while the fuel pump does whirrrr during the startup proceedure). It seems to free up after it has cooled then works normally. We ordered a new regulator but haven't received it yet to see if this fixes the problem. There is a possibility that the problem is a weak pump that cannot overcome the stuck regulator but since all the checks are in spec, I'm leaning toward the regulator at the moment.

SOURCE: I have changed the fuel pump on my 1997 chevy

You may have a problem with the wireing harnest to the fuel pump There is a service boletin #25215705 released in march 07 The wiring is not resistance wire and tends to over heat When i did mind i bought a deiphi fuel pump and this kit came with the pump i had to cut the wiring back about a foot when i looked at the old wires they looked like they had over heated and were corroided You probably arn;t thrilled to hear this because i know how much fun it is dropping that tank but if you got it down a few inches i think you cuuld get your hand up there and unplug that connector to check it i hope this helps

SOURCE: 1984 f-150 inline 6, 1

I need to ask a few questions and please do not think I am insulting you.
How much gas is in tank?
Is the gas good gas and not with water in it? Can you take any gas from the hose into a clear container and wait a minute and see if separation occurs?
Can you see gas squirt into carburetor when you pull on the accelerator cable or push the lever in on the carb? If you can see it..it is going into the intake and .most likely bad gas.
Lastly and another problem area is the fuel jet inside the carb is stuck or has an obstruction such as goo from bad gas?
This gives you some ideas on what to look for and thanks for using FixYa.