Ed Martin
Well-Known Member
I'm having trouble starting my 68 Roadrunner 383 with stock intake and 600 cfm Holley carb that I installed late last year (previous post Dec 28, 2018). I can pump the pedal three times (it only cranks), 2 more pumps and with lots of cranking it will fire up but runs real rough and then shuts down even with more pumping. Then will finally start again and keep running after a couple more pumps. I can see the accelerator pump is squirting (at least a couple of times, from under the hood) and choke is setting. It sits at least 2 weeks between driving. I'm thinking maybe some fuel is evaporating from the bowl and there may not be enough left to allow the accelerator pump to deliver enough even though I'm pumping several times. If the fuel pump is bad (leaking diaphragm or bad check valve?), then it would take more cranking than usual to get fuel to the carb.
What does anyone think?
The fuel pump is at least 30 years old. What is a good mechanical pump to use?
What does anyone think?
The fuel pump is at least 30 years old. What is a good mechanical pump to use?