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Home >> GMC >> 1986 >> Safari Van M V6-262 4.3L >> Repair and Diagnosis >> Powertrain Management >> Fuel Delivery and Air Induction >> Carburetor >> Adjustments >> Rochester Quadrajet M4M Series >> Float Level

Float Level

Fig. 8 Float level Adjustment:





1. Remove air horn, gasket, power piston/metering rod assembly and float bowl insert.
2. Attach base tool No. J-34817-1 or BT-8227A-1 to float bowl, Fig. 8.
3. Position tool J-34817-3 or BT-8227A into base, ensuring contact pin rests on outer edge of float lever.
4. Using adjustable T-scale shown, measure distance from top of casting to top of float, at a point 3/16 inch from large end of float. If float level deviates more than 2/32 inch from specifications, bend float lever up or down as required with bending tool shown, Fig. 8.
5. Repeat procedure, check float alignment, then reassemble carburetor.