lemon-mirror:
Home >> GMC >> 1982 >> Magnavan Standard Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> ROCHESTER Models M4MC & M4ME 4-Barrel >> Adjustment >> Float Level

Float Level

  1. Remove air horn. Remove gasket from main body casting. Hold float retainer firmly in place.
  2. Using light finger pressure, gently push float against needle. Using a "T" scale, measure distance from top of casting to top of float. Gauging point should be 3/16" back from end of float at toe. See Fig 1.
  3. If adjustment is needed, remove float from main body of carburetor. Bend float arm up or down. Install float and recheck float level.
  4. Be sure to check float alignment after adjusting operation. Install new gasket and reinstall air horn.
    Fig 1: Float Level Adjustment
    G09360542Courtesy of GENERAL MOTORS COMPANY

    Measure distance from float bowl casting to float.