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Float Level (Wet Setting)

  1. Warm up engine to operating temperature. Ensure vehicle is on flat, level surface. Stop engine and remove air cleaner and air horn attaching screws. Leave air horn in position on carburetor. Start engine. See Fig. 3  .
  2. Allow engine to idle for a few minutes to stabilize fuel level. With engine idling, remove air horn and gasket.
  3. Measure distance, with suitable "T" scale, from machined surface of main body to level of fuel in fuel bowl. Make measurement at least 1/4" away from sides of bowl to be sure of accurate reading.
  4. If level is not within specifications, adjustment is needed. Stop engine before adjusting to avoid fire danger from fuel spray. Bend float tab (contacting inlet valve) up to raise fuel level and down to lower level.
  5. After each adjustment, install air horn with 2 screws, start engine and idle long enough for fuel level to adjust to new adjustment. Stop engine, recheck fuel level.
  6. When correct level is obtained, install new air horn gasket; replace air horn (install I.D. tag). Be sure plastic dust seal on choke rod is positioned properly and does not bind rod.
    Fig 1: Adjusting Float Level (Wet Setting)
    G09342907Courtesy of FORD MOTOR CO.
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