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Home >> Oldsmobile >> 1964 >> 98 Base, Eng CD JS, Not Available Trans >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> ROCHESTER 4GC 4-Barrel >> Overhaul >> Disassembly >> Automatic Choke
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Automatic Choke

Remove choke cover attaching screws and retainers, remove choke cover and coil assembly, gasket, and baffle plate. Remove choke piston lever screw, rotate lever to withdraw vacuum piston from cylinder, remove piston and lever assembly from housing

NOTE: (Piston can be removed from link by taking out piston pin).

Remove choke housing attaching screws, remove choke housing and gasket or O-ring seal from main body. Remove choke shaft, lever, and rod assembly from choke housing.

Fig 1: THROTTLE BODY SCREW LOCATION
G09353194Courtesy of GENERAL MOTORS COMPANY
Fig 2: CARBURETOR BOWL PARTS ASSEMBLY
G09353195Courtesy of GENERAL MOTORS COMPANY
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