Exploded views and diagrams for Rochester B, BC, and BV carburetors. Keep in mind there were many variations of these carbs over the years, these images are just an example of what you might have and should be used as a guide. Take your own pictures while disassembling the carburetor to be sure you know how to reinstall parts.
 | 60) screw 61) link 62) choke shaft lever 63) retainer pin 64) vacuum break assembly 65) vacuum hose |
 | 1) Thermostat cover screw 2) Retainer style a 3) Retainer style b 4) Thermostat cover and coil 5) Thermostat cover gasket 6) Baffle plate 7) Choke housing screw 8) Choke piston pin 9) Choke piston 10) Choke housing 11) Fuel inlet fitting 12) Fuel inlet gasket 13) Fuel inlet filter gasket 14) Fuel filter 15) Fuel filter spring 16) Choke lever screw 17) Piston link and lever assembly 18) Choke shaft assembly 19) Choke valve 20) Choke valve screw 21) Air cleaner support 22) Air horn screw 23) Air horn assembly 24) Needle and seat assembly 25) Power piston spring 26) Power piston 27) Main well support 28) Main well support screw 29) Main metering jet 66) Idle vent valve assembly |
 | 27) Main well support 28) Main well support screw 29) Main metering jet 30) Power valve assembly 31) Float hinge pin 32) Float assembly 33) Air horn gasket 34) Pump assembly retainer 35) Pump duration spring 36) Pump plunger assembly 37) Retainer pin 38) Pump link 39) Pump discharge guide 40) Pump discharge spring 41) Pump discharge ball 42) Pump return spring 48) Float bowl assembly |
 | 39) Pump discharge guide 40) Pump discharge spring 41) Pump discharge ball 42) Pump return spring 43) Choke rod clip 44) Choke rod 45) Choke rod pin 46) Cam attaching screw 47) Fast idle cam 48) Float bowl assembly 49) Throttle body gasket 50) Idle needle 51) Idle needle spring 52) Choke tube packing 53) Choke tube nut 54) Throttle body assembly 55) Throttle body screw 56) Idle stop screw spring 57) Idle stop screw 58) Throttle body gasket |
