I have a 1965 mustang and I think I am having a problem with my carburetor. When I try to start it i smell gas so I think I am flooding the carb, I recently thouroghly cleaned the carb because it was sitting and got filled with a bunch of "gunk". After I did that it tried to start but it wouldn't stay started. It would run a few seconds (if that) then die I'm pretty sure its the carb I just don't know how to fix it. By the way its a 4 bbl. Is it possible that I have a vacuum leak if so can I check that without the engine running? Any answers you provide treat me like I know nothing and explain everything in "GREAT" detail.
Carburetor problems
- Thread starter mustangguy30000
- Start date
After you try starting the car, look into the carb and see if there is standing gas. If so, I would say the needle valve is gummed up and giving too much gas.
Try starting it by holding the throttle open 50-60 percent, and cranking it a lot. Once it starts, see if it will stay running by you constantly pumping the throttle. Sounds like the time my holley got something in the needle valve and dumped too much gas.
Try starting it by holding the throttle open 50-60 percent, and cranking it a lot. Once it starts, see if it will stay running by you constantly pumping the throttle. Sounds like the time my holley got something in the needle valve and dumped too much gas.
Whatever you do, do NOT keep pumping it. You've already got it flooded from the sound of what you posted. Pumping the pedal will only give it more fuel, soaking the plugs to the point where they won't fire. What carb do you have ? You'll probably need to completely rebuild it if it sat a long time. On Holley & Autolite carbs, the acellerator pump diaphram gets dried out and will rupture when used again, leaking fuel out the bottom of the primary bowl ( secondary too if it's a double pumper). The power valve also has a rubber diaphram that will also rupture, causing it to flood. The needle & seat assembly will stick, this causes fuel to completely fill the bowl(s) to the point where it will flow up and out of the bowl vents (the tall open tubes inside the aircleaner)
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