Ford — Float Adjustment (Holley Model 1940)
Adjustments · Carburetor fuel bowl
From a Ford service manual — check it applies to your exact model before use.
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Before you start
- When bending the tang, do not force the Viton-tipped fuel inlet needle against the seat or the Viton tip will be damaged.
Procedure
- Remove the carburetor from the intake manifold and disconnect all connections to the carburetor.
- Remove the fuel bowl cover from the carburetor main body and drain the fuel from the fuel bowl.
- Invert the carburetor assembly and place a straight-edge across the surface of the fuel bowl.
- The toes of the floats should just lightly touch the straight-edge.
- To adjust, bend the float tang. Both floats must be parallel to the straight-edge and not cocked or offset.
- Bend the float shafts to even out the floats; recheck float level.
Tools required
- Straight-edge Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Ford service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.