Key Linkage Components:
* Kickdown Linkage: This connects the carburetor to the transmission. It controls the carburetor's throttle position during hard acceleration to allow for a downshift. A cable or rod typically connects to the carburetor's throttle lever and the transmission's kickdown mechanism. This is crucial for proper automatic transmission operation.
* Choke Linkage: This typically consists of a cable or rod connected to the carburetor's choke mechanism. This linkage is activated by the choke lever in the vehicle's dashboard, allowing the choke to enrich the air-fuel mixture for cold starts.
* Throttle Linkage: This connects the gas pedal to the carburetor's throttle plate. This is usually a rod and lever system with adjustments to ensure proper throttle response. It may include a return spring to keep the throttle closed when the gas pedal is released.
* Fast Idle Cam: Located on the carburetor itself, this cam interacts with the throttle linkage to provide a higher idle speed when the choke is engaged.
Finding your specific linkage configuration:
1. Consult a repair manual: A Haynes or Chilton repair manual specific to your 1977 Dodge with the 318 2-barrel engine will have detailed diagrams and explanations of the linkage system. This is the best resource.
2. Online resources: Websites and forums dedicated to classic Dodge vehicles may have pictures or discussions about the carburetor linkage on a similar model. Search for "1977 Dodge 318 2bbl carburetor linkage diagram."
3. Visual inspection: Carefully examine your engine bay. Trace the linkages from the gas pedal, the transmission, and the choke lever to the carburetor. Take pictures to help you understand the arrangement.
Without a visual inspection or a specific model number, providing exact details about the carb linkages is impossible. The linkage configuration is crucial for proper engine operation. If you are unsure about adjusting or repairing any part of it, seeking help from a qualified mechanic is recommended to prevent damage to your engine or transmission.