Rebuilding Help

Identification Help Ball & Ball

Rebuild Videos

1939-41 Plymouth Carburetor

Exploded Views and Diagrams

Specifications

OE Specification Sheets

Circuits & Parts

Dashpot Carbs

Accelerator Pump Circuit

Balance Tube

Troubleshooting and Q&A

Flooding

Doesn’t Start After Sitting

Engine Only Runs When Choked

Gas Leaks Out Throttle Shaft

Can I Get Main Jets?

Throttle Valve is about 1/2 Open

Hesitation or Bog on Acceleration

Fuel Bowl Empties Overnight

Sometimes referred to as the Ball & Ball carburetor, it’s important to be aware that Carter marked several carburetor models with the B&B or Ball & Ball insignia including BBS, BB, BBR1, BB-1, and BBD carbs. These carburetors are not the same and should be treated as different models based on the carburetor number.

Watch a video about where to find the carburetor number.

https://youtu.be/pLv42foK4LQ

Carter BB Carburetor Catalog.

Carter BB Updraft Instruction Sheet

Dashpot Type of Carter BB

This picture illustrates where to find the carburetor number and also the difference between a carburetor with and without the dashpot. The dashpot type of carburetor usually was placed on vehicles with automatic transmissions.

Can the dashpot type be disconnected, or replaced by a non dashpot type? This would not be recommended, but also depends on the type of transmission. If the transmission is a semi-automatic, then the car may stall when slowing or coming to a stop; that is what the dashpot prevents. Even when the dashpot solenoid is disconnected, you would still need the presence of the kickdown switch used with Fluid Drive, Hy-Drive -- whatever -- on that particular carburetor. If the tranny is manual, then it never had a dashpot or a kickdown switch to begin with and disconnecting it should do no harm. Don't ask me why Chrysler determined that their system had to be electrical, because most dashpots used from the '50s on up were passive. Perhaps it has to do with the semi-automatic (as opposed to fully-automatic) nature of their transmissions back then.

Replace your carburetor with this universal carburetor:

https://youtu.be/XwhBhPl18uY