The Rochester Files

Rochester 4bbl Exploded view and Parts Nomenclature (277K)

Rochester Adjustments Data Table

ADJUSTMENTS ( Use your browser's "Back" function to return here)

Float Level
Pump Rod
Idle Vent
Air Valve
Fast Idle (Carb off engine)
Fast Idle (Carb on engine)
Choke Rod Adjustment
Choke Coil Lever
Fast Idle Cam
Split Choke Spring
Primary Vacuum Break (4MV)
Vacuum Break ('70 Olds)
Air Valve Lockout
Secondary Opening and Throttle Lockout (4MV)
Secondary Opening
Secondary Metering Rod
Air Valve Spring
Air Valve Dashpot
Automatic Choke
Slow Idle
Secondary Closing
Choke Coil Rod