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Home >> Chevrolet >> 1985 >> Nova Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Carburetor - AISAN 2-Bbl >> Overhaul >> Disassembly >> Main Body

Main Body

  1. Disconnect throttle positioner link. Remove 2 bolts. Remove stopper gasket, pump discharge weight, long spring and large discharge ball. Using tweezers, remove plunger retainer and small ball. See Fig 1 .
    Fig 1: Throttle Positioner
    G5163
  2. Remove slow jet. Remove power valve with jet. Disassemble power valve and jet. Remove "TP" levers. Remove primary main passage plug, primary main jet and gasket.
  3. Remove secondary main passage plug, secondary main jet and gasket. Remove AAP housing, spring and diaphragm. Remove AAP inlet plug and small ball. Remove outlet plug, short spring and small ball. See Fig 2 .
    Fig 2: Removing AAP Check Ball Plugs
    G5164
  4. Remove primary and secondary small venturies. Remove sight glass retainer, sight glass and "O" ring. Remove throttle lever and fast idle cam subassembly.
  5. Remove throttle return spring, throttle back spring, throttle lever and fast idle cam. Remove secondary throttle valve diaphragm assembly and gasket. Remove 3 mounting bolts and vacuum passage bolt.
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