The process of rebuilding a Rochester carburetor involves preparation, documentation and removal. After cleaning the carburetor parts, reinstallation or replacement, tuning and smoothing take place.
The first step in the rebuilding process is preparation. It involves familiarizing with various components of the carburetor and locating the identification number, which helps in ordering the correct replacement parts. This step also involves collecting tools, chemicals and safety gear required for the rebuilding task and setting the working area.
The second step is documenting and disconnecting. It entails taking pictures of the carburetor, labeling parts and disconnecting them, and matching new parts with the old ones.
Step three involves removing the carburetor from the engine bay, turning it upside down over a container to drain the fuel and placing it on a stand.
The fourth step is cleaning and involves soaking metallic parts in the cleaner or use a small brush to clean them.
Next is reinstallation. This step includes fixing the carburetor onto the gasket and replacing the vacuum fittings onto the base plate. Tighten the carburetor evenly to the gasket to avoid warping of the base plate, and seal the plug with tape or a good thread sealant.
Tuning and smoothing form the last step of the process. This step entails the use of an air or fuel ratio meter to tune the carburetor and make basic adjustments on the adjustable part throttles of discharge ports, power piston and base plate.