How many time do you pump the pedal?

['70 StangMan]

2 Pumps and away we go.

[Random155]

1 pump, edelbrock carb with elec choke, on a 351 clev, turns right over even after sitting for a week.

[Brittle]

Once

[zray]

when cold: one pump
when hot: just a nudge

650 cfm Holley dp w/ Paxton, but the procedure was the same when I had a 715 Holley w/o the Paxton. No choke used in either case.


Z. Ray

[mach1jc]

During the Summer, and or has been driven regularly, once, after sitting during colder months, twice, but I usually have to feather it a little after starting. When hot, never.

[musgofasta]

When hot or driven within the last 24 hours = 0.

If I haven't driven it since the weekend before = 4-5.

Does an electric fuel pump help with difficult cold starting?

[AMR66]

As I said before, you should not have to pump the gas pedal at all to get your car to start if the choke is set right. I would start from there that is the simplest. What kind of carb do you have? Is it a 2b or 4b?

[rangerdoc]

That's what I'm trying to get at. I have a 2bbl Autolite. What do I have wrong that requires so many pumps? Everything works great once the car is started. My choke plate is at the book specs, the fast idle is at the correct RPMs (once started), the slow idle is correct once warm. The choke resets with one pump, gas squirts when I press the throttle. I'm really at a loss?

[gotstang]

Maybe the carb is loosing its' prime as it sits? Gas leak? Fuel evaporating?

[rangerdoc]

I thought that was my problem as I did have a leak from the powervalve. But after the rebuild there is no leak but I have the same problem.

[rangerdoc]

OK...I've been doing a bunch of little tweaks to the carb and choke. I finally have the car starting with two pumps and then I let it warm up.

I have one little issue. When I give it a quick punch of the gas the car wants to stall unless I let up or only ease on the gas. Does this mean my float isn't set correctly? If so, does it indicate the fuel level is too high or too low? Or perhaps this is caused by something else?

[JohnnyK]

Too young to know what you ol' fellas are talking about. EFI here.

[supershifter2]

when cold 1 pump with a golley double pumper (holley) 2 pumps when i runned a vacuum ! (not a hoover)!!

[sportsroof69]

It doesn't matter how cold it is, even if it's in the teens, or if it has been weeks since the car has been started. I turn the key on, press and realease the pedal, and the engine won't even make a full revolution before it's off and running, and it never even stumbles.

I have a street avenger 670, with a MSD pro billet dizzy and 6al box.

[VintageBlueOval]

My car was taking 2 pumps to start when cold, after that it would fire easily with just the key. I've got a Holley 4160 500-cfm 4BBL.