mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

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Carburetor Fuel Bowl Thermal Vent Valve|Page 2449 > < Carburetor Fuel Bowl Thermal Vent Valve|Page 2446

Marquis L4-140 2.3L VIN A 1-bbl (1986)

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Bowl Vent Valve: Testing and Inspection
Carburetor Fuel Bowl Thermal Vent Valve

At 90°F and below, the vent valve is fully closed and at 120°F and above, the vent valve is fully open.

Carburetor Fuel Bowl Thermal Vent Valve|Page 2449 > < Carburetor Fuel Bowl Thermal Vent Valve|Page 2446