1966 hemi carbs flooding

[gtx6970]

Are you sure that it’s not leaking through the throttle shafts? I think that I had heard somewhere that when they wear they could leak but I would think that they would leak air in and not fuel out. Also they would leak when the engine was running as the air/fuel was flowing past the shafts. While you have the carb off the car hook an electric fuel pump to it and confirm were the leak is. If it doesn’t leak it has to be the shafts I would think.

It had fuel running down the side of the carb body , So Im 99% sure it had either a binding float or stuck open needle/seat


Its back together and running. Drove it to a local cruise near me Saturday .
Plus had it running a while in the driveway yesterday for about half hour to monitor fuel pressure
No leaks - flooding = so far so good

 

[AR67GTX]

Mine have loose primary throttle shafts but the only fuel that leaks out of them is when I prime the engine down the throat, or spill a little gas down the throat when filling the bowls. But it is a vacuum leak when the engine is running and I plan to have them bushed sometime.

 

[Some Car Guy]

Sounds like you did a good rundown and caught it along the way. I’ve had junk get in and hold the floats open, never to the degree of running over the carb though.

On shafts, when they get real bad it causes and hanging idle as they get the blades caught in the bores.

 

[AR67GTX]

The car has always had a slight bog if I stomped it hard, Once Im sure all is good.
I plan to get some metering rod / jet kits and try to fine tune it some.


A friend of mine has spare hemi carbs.
Ive actually toyed with the idea to pick up a spare set and have them gone thru by someone with a little more knowledge than me

View attachment 1756912

My car also has a bog anytime I slam the throttle open in first from a slow roll. I worked on it for about 6 months a couple years ago with the help of Dragonslayer and never could get it worked out completely. The only thing that seemed to greatly lessen it was to replace the accelerator pump shooter with I believe .035 units from memory, and put the linkage on the inside hole. But I only tried that on the back carb and I think to get rid of it completely I would need to do it on both carbs. I decided I could live with it with my style of driving and just put everything back stock. But I went through the carbs completely with George’s suggestions and checks of boosters, all part numbers, gaskets, jetting, cleaning economizer passages out to spec, etc and it just seemed that it’s tough to get enough fuel down the throats when all 8 bores are suddenly opened at lower engine speeds.

 

[gtx6970]

My car also has a bog anytime I slam the throttle open in first from a slow roll. I worked on it for about 6 months a couple years ago with the help of Dragonslayer and never could get it worked out completely. The only thing that seemed to greatly lessen it was to replace the accelerator pump shooter with I believe .035 units from memory, and put the linkage on the inside hole. But I only tried that on the back carb and I think to get rid of it completely I would need to do it on both carbs. I decided I could live with it with my style of driving and just put everything back stock. But I went through the carbs completely with George’s suggestions and checks of boosters, all part numbers, gaskets, jetting, cleaning economizer passages out to spec, etc and it just seemed that it’s tough to get enough fuel down the throats when all 8 bores are suddenly opened at lower engine speeds.

My plan is at some point I'll play with metering rods and jets to try and dial it in a little better.
I already know one of the jets under the metering rods are 2 different sizes in the front carb

This past spring I installed some of the ebay knockoffs of the Milodon spark plug tube seals and in my case they make it real difficult to install the plugs. I think they are putting the tubes in a bind And Im still getting oil in some tubes.
My plan next year is pull valve covers back off and put the Milodon brand in , with new tubes ( again ) And go back thru the valves .

I did the valves back in March and I think I have one a little loose as I get a noticeable tick on pass side , especially cold
At that time ( maybe before ) I want to move the fuel pressure gauge down inline between the pump and the upper Tee , Kinda under the alternator , out of sight out of mind so to speak


BUT, Same here , And like You. I dont hardly beat on it , Dont race it at all.

 

[gtx6970]

Ps, Oil is supposed to be delivered tomorrow. So I'll get the oil changed and take it for a longer drive to make sure all is good

Ive been invited back up to Phoenix again in a few weeks for a Kiwana's for Kids toy drive a buddy of mine helps arrange

 

[426s martin]

What gasket kit part # are you using--Thanks

 

[gtx6970]

What gasket kit part # are you using--Thanks

Kit and float

 

[426s martin]

Thanks!!

 

[Fran Blacker]

Did the carb kit supply the check valve for accelerator chamber? Thanks

 

[Dragon Slayer]

No it doesn't. You need to get the check valve separately.