moparblood
Well-Known Member
i used the electric choke kit 1232! works great!,easy hook up! but when van sits over night the fuel bowl empties out! WHY?
i used the electric choke kit 1232! works great!,easy hook up! but when van sits over night the fuel bowl empties out! WHY?
It does in my AFB on my 66 Dart. All gone overnight. Installed a electric pump with a bypass setup, no more issues now...I wouldn't think all of the fuel would be evaporating completely. Not just overnight. My guess is the fuel pump is bad and somehow allowing fuel to gravity feed back into the fuel supply line. Pull the dipstick and see if it smells strongly of fuel. If it does, the diaphragm in the pump is letting fuel run into the oil pan. Put a fuel pump on it If not, when you park it to let it sit overnight again, take a pair of vise grips and gently pinch the fuel supply hose from the tank to the pump closed. But make sure it is closed completely. If it starts the next morning, then the fuel pump is allowing fuel to run back into the supply line. Put a fuel pump on it.
Gotta Love this forum. i will pinch the hose to see if fuel pump is bad, then will do the fuel mod Dan says!It does in my AFB on my 66 Dart. All gone overnight. Installed a electric pump with a bypass setup, no more issues now...
I have seen this posted before, by other people.My guess is the fuel pump is bad and somehow allowing fuel to gravity feed back into the fuel supply line.
I have seen this posted before, by other people.
I have always wondered how a bad fuel pump can allow a float bowl to drain. The fuel inlet needle/seat in the carb is higher then the fuel level in the carb.
I have this same problem on my 84 D-100 with a Carter bbd if it sits for more then 2 days, but I have not looked into the reason, yet. My 64 Valiant with a holley 1920 could sit for over a week, and start right up.
Hey Trail Beast,
First off that is not a 225 c.u. 6 cylinder that you fired up.
This is a post on things to do and try on a 6 cylinder van or car. Have you ever looked at where Chrysler routed the fuel line or how they mounted the carburetor directly on (3 inches) above and bolted to the exhaust manifold collector and heat riser.
Our problem is the shitty gasoline. To much corn in it now. This is NOT a drain back problem, its a boil over and flooding problem. My God I can drive mine tell it gets good and hot, which is normal operating temperature, shut it off, let it sit for a bit, open the hood, look at my carburetor and watch it boil over.
I have seen this posted before, by other people.
I have always wondered how a bad fuel pump can allow a float bowl to drain. The fuel inlet needle/seat in the carb is higher then the fuel level in the carb.
I have this same problem on my 84 D-100 with a Carter bbd if it sits for more then 2 days, but I have not looked into the reason, yet. My 64 Valiant with a holley 1920 could sit for over a week, and start right up.
Your right, my mistake. Looking at an exterior view it looks like the fuel inlet is low in the bowl but upon further examination, the inlet seems to be higher than the fuel level, but not my much. How far are the jets under the fuel level when its at its proper height? The wells look deep but the jet looks to sit high. Im thinking back and realize that all carbs are like this, top feeders as the design of a bottom feeder may put unnecessary faith in the needle seats to keep fuel in the bowl against gravity. I got the siphon part right, but a swing and a big miss on the bottom feeder statement. I never owned a BBD, only the H2.BBD has the fuel inlet at the top of the float bowl, not the bottom. It is above the fuel level. It can't siphon fuel from the float bowl. \