1972 Fuel Delivery/Carb issues?

[mstnate]

I have a 1972 Mustang Convertible with a 302 2 BBL Automatic Transmission. Car ran great last fall trying to get it running this spring and it will not stay running. Takes two or three tries to get the engine to start, once it starts it will not idle on it's own. Must keep accelerator depressed, after about 3 to 4 minutes the car dies like it is running out of gas wether or not I have the gas pedal depressed or not.

Any ideas?

[dorfboy]

Does it have an electric fuel pump or a manual one? I am not too schooled on the mid models like that. Though a suggestion would be to check the PSI on your fuel lines and check the floats on your carbs? Letting it sit like that without starting it could make the carb a little hard at first

[1967 Stang]

Originally Posted by mstnate

I have a 1972 Mustang Convertible with a 302 2 BBL Automatic Transmission. Car ran great last fall trying to get it running this spring and it will not stay running. Takes two or three tries to get the engine to start, once it starts it will not idle on it's own. Must keep accelerator depressed, after about 3 to 4 minutes the car dies like it is running out of gas wether or not I have the gas pedal depressed or not.

Any ideas?

Similar problem in my 67, I have changed a few things, rebuilt carb, cleaned fuel lines and new fuel pump, none of this seemed to really help but one thing we have yet to try (car is disassembled at the moment) is tweaking with the accelerator line to the carb, there should be 3 holes where you can attatch the line to, opening it up more for a larger gas flow at idle, or less which it probably not your case. Another thing that you should check for is a vacuum leak, take a liquid doesnt matter what as long as its visible on the lines and cover the lines, start your mustang and look for an area where the liquid is being sucked in, if that is the problem it should run like it did before once you change the hoses.

[GTStang]

Check the accelerator pump on the carb make sure the rod for it is not sticking.

[Silver Fox]

Not sure what carb you have but you might check the strainer filter where the fuel line connects to the carb. Also any inline fuel filters. You might have some debree in a filter could cause restricted fuel flow.




Kent Mathew
Dallas TX