Failing fuel pump

[koates]

You said you have installed a new fuel pump, Mechanical type ? The 1934-36 new reproduction China made mechanical pumps are no good. They have a new design linkage which has a lot of free play movement before it even moves the pump diaphragm at all. The pump push rod only moves about 1/10th of an inch and so tends not to move the pump much if at all. I have had three of these pumps and all just junk. The best option is to rebuild/restore an original correct AC type pump. Very important to make sure the complete fuel line from carb to tank sender is airtight. Use a vacuum gauge to test that. Regards, Kevin.