So here's the lowdown:

1953 Dodge Meadowbrook 2-dr Suburban (Wagon)
Flathead 6
3 Speed Manual
~88K

Already rebuilt Carb (B&B Single)
Cap, Rotor, Points & Plugs checked and in good shape (have not checked wires yet)
Checked fuel filter, cleaned. Pump pressure checked - seems like good flow into carb.
Tranny seems fine.

Starts and idles fine (as fine as a 6 volt system does), but when load is put on (we are accelerating - and not necessarily very quickly) engine while driving (after ~200-300 yards) while WARM (being cold seems to help it to run more smoothly), it starts to stumble - first slowly then enough to stall out the engine. From there it will start, but quickly stumbles or stalls out. If we let it "cool" down a bit (not overheating though), it'll let us limp for a while. Then repeat till home. Funny thing - reverse does not seem to have nearly the same impact - though I only have backed it in a few yards that way to park. Probably nothing - but just in case.

Some things I'm thinking:
Wires - though everything else is in good shape
Some sort of electrical short (At firewall?)
Still a carb issue (Float? - though we are getting good flow into the "tank")
Water/dirt in the fuel line (though it doesn't seem to have any issues idling)
Heat Riser (though it does not seem to be stuck open or closed, and not experiencing extreme overheating)
Fuel Pump failing (perhaps pressue is on/off - we have not experienced that, but would explain some of the issues)

Stuck - any help would be much appreciated!

[IMG]local://upfiles/30242/51D453A5083146979963C5B1C9DEADAC.jpg[/IMG]

 

Sounds like the ignition system....

 

I would vote carb. How long ago was it rebuilt? The plug wires are defintiely something to replace. Doesn't really sound electrical to me since the engine idles without a problem, Fuel and air is where I'd look.

 

Carb was rebuilt this week. Look like it was coil problem. The previous owner evidently tightened the clamp down a bit hard, basically squishing the coil so it was bulging out the top. Not noticable till off though. Carb still needs to be fine tuned, but it seems to be running much better now that the coil was replaced. I may still have to replace the condenser in the distributor to work all the kinks out. Thanks all!

 

I don't know where you're from but is your weather hot enough that you're vapor locking? When you let it cool down a bit it'll run again.

 

Moe in Wichita, KS i vote for a vacuum leek