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Home >> Jeep >> 1987 >> Wrangler Base, 2.5 H >> Repair and Diagnosis >> Engine Performance >> System >> Carburetor - Carter BBD 2-Bbl >> Overhaul >> Disassembly

Carburetor - Carter BBD 2-Bbl: Overhaul: Disassembly

  1. Place carburetor on a repair stand. Remove stepper motor (if equipped). Remove retaining clip from accelerator pump arm link. Remove link.
  2. Remove cover and gasket from top of air horn. Remove screws and locks from accelerator pump arm and vacuum piston rod lifter. Slide pump lever out of air horn. Remove pump arm and rod lifter.
  3. Remove vacuum piston and step-up rods as an assembly. Remove vacuum piston and step-up rods as an assembly. Remove vacuum piston spring. Remove choke vacuum diaphragm hose. Disconnect clips and remove link from choke housing lever and choke lever.
  4. Remove screw and lever from choke shaft. Remove choke diaphragm, linkage and bracket assembly. Remove fast idle cam retaining screw. Remove fast idle cam, choke link and clip. Grind heads off of torque-head screws. Remove choke cover assembly and housing from throttle body. Remove remaining screws with locking pliers.
  5. Remove screws securing air horn. Remove air horn from main body. Discard gasket. Turn air horn upside-down and compress accelerator pump drive spring. Remove "S" link from pump shaft. Remove pump assembly.
  6. Remove fuel inlet needle valve, seat and gasket from main body. Discard gasket. Turn air horn upside-down and compress accelerator pump drive spring. Remove "S" link from pump shaft. Remove main metering jets.
  7. Remove venturi cluster screws. Remove cluster and gaskets from main body and discard gaskets. DO NOT  remove idle orifice tubes or main vent tubes from cluster as they can be cleaned with solvent and dried with compressed air while assembled.
  8. Turn carburetor upside-down and catch accelerator pump discharge and intake check balls as they fall out.
  9. Turn idle limiter caps to stop position. Remove plastic caps from idle air mixture screws. Count number of turns necessary to seat screws. This will ease reassembly adjustment. Remove screws and springs from throttle body.
  10. Remove screws and separate throttle body from main body. Discard gasket. Check choke plate in air horn for freedom of movement. If sticking or binding is evident, clean thoroughly.