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Home >> Oldsmobile >> 1987 >> Custom Cruiser >> Repair and Diagnosis >> Engine Performance >> System >> Carburetor - ROCHESTER E4MC/E4ME >> Adjustments >> Float Level (Wet Setting)

Float Level (Wet Setting)

NOTE: This is an on-vehicle adjustment.
  1. With engine running at idle and choke valve wide open, carefully insert float gauge into vent slot or vent hole (next to air cleaner mounting stud) in air horn. Allow gauge to float freely. See Fig 1.
    NOTE: Pressing down on float gauge could result in float damage or carburetor flooding.
    Fig 1: Wet Float Level Adjustment Allow float gauge to float freely.
    G7635
  2. With gauge floating freely, observe mark on gauge which aligns with top of casting (at eye level). Reading should be within 2/32" (1.58 mm) of specified float level. Incorrect fuel pressure will affect fuel level.
  3. If reading is not within 2/32" (1.58 mm) of specified float level, remove carburetor. Remove air horn and perform FLOAT LEVEL (DRY SETTING)  adjustment.