REMOVAL & INSTALLATION

CAUTION
Gasoline in either liquid or vapor state is EXTREMELY explosive. Take great care to contain spillage. Work in an open or well-ventilated area. Do not connect or disconnect electrical connectors while fuel hoses are removed or loosened. Observe no smoking/no open flame rules during repairs. Have a dry-chemical fire extinguisher (type B-C) within arm's reach at all times and know how to use it.

Non-Feedback Models

NOTE: All 1983–84 non-diesel Pick-ups, as well as 1983 Monteros and 1984 non-California Monteros, were equipped with a non-feedback carburetor.

1. Disconnect the negative battery cable.
2. Remove the air cleaner.
3. Place a container under the fuel line inlet fitting to contain spillage. Disconnect the fuel inlet line from the carburetor nipple.
4. Label or diagram each vacuum hose connection; disconnect the hoses from the carburetor ports.
5. Disconnect the throttle cable at the carburetor.
6. Remove the mounting bolts. Lift the carburetor off the engine and remove it to a workbench. Keep it level to avoid spilling fuel from the float bowl.
7. Carefully drain the carburetor into a container with an airtight lid.
8. Before installation, inspect the mating surfaces of the carburetor and manifold. They should be clean and free of nicks, burrs or any pieces of gasket material. Clean the surfaces as necessary and remove any slight imperfections with crocus or emery cloth.
9. Put a new carburetor gasket on the surface of the manifold.
10. Carefully locate the carburetor on top of the gasket with all holes lined up. Install the carburetor bolts, tightening them alternately and evenly in small increments. The gasket must be compressed evenly to prevent leakage.
11. Connect the throttle linkage. Have someone depress the accelerator pedal and make sure the throttle blade opens all the way; it should be exactly vertical at full throttle. Adjust the cable as needed to obtain full opening of the throttle plate.
12. Connect the vacuum hoses according to your drawing or labeling. Make sure all are soft and free of cracks to make a good seal. Replace hoses that are hard or cracked.
13. Reconnect the fuel hoses.
14. Reinstall the air cleaner assembly. Check the filter element and replace it if needed.
15. Connect the negative battery cable.
16. Double check all installation items, paying particular attention to loose hoses or hanging wires, untightened nuts, poor routing of hoses and wires (too tight or rubbing) and tools left in the engine area.
17. Start the engine. It will require a longer cranking period and two or three pumps of the accelerator pedal before it starts.

    CAUTION
    Do NOT prime the engine by pouring fuel into the air horn of the carburetor. This outdated and foolish practice can result in severe injury or damage.

18. While the engine is warming up, check the work area carefully for any sign of fuel or vacuum leaks and attend to them immediately. Set the idle speed and make other necessary adjustments after the engine is running smoothly and is fully warmed up.

Feedback Models

NOTE: All 1985–89 Pick-ups and Monteros, as well as 1984 California Monteros and 1990 4-cylinder Monteros, were equipped with a feedback carburetor.

1. Disconnect the negative battery cable.

   NOTE: All wires and hoses should be labeled at the time of removal. The amount of time saved during reassembly makes the extra effort well worthwhile.

2. Drain the engine coolant to a point below the level of the intake manifold.

   CAUTION
   When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.

3. Remove the air cleaner assembly, disconnecting the various hoses and ducts as necessary.
4. Disconnect the accelerator cable from the carburetor.
5. Disconnect the coolant hose connection from the back of the carburetor.
6. Disconnect the vacuum hoses.
7. For vehicles with automatic transmissions, remove the lock pin and disconnect the throttle control cable linkage.
8. Disconnect the wiring to the throttle position sensor.
9. Disconnect the wiring to the solenoid valve.
10. Unplug the connector for the carburetor heater. Take care to separate the connectors without pulling on the wiring.
11. Use a small pan or jar to hold under the fuel hose connections. Disconnect them one at a time and catch any spilled fuel.
12. Remove the carburetor retaining bolts and lift the carburetor off the engine. Keep the carburetor level to avoid spillage. Once the carburetor is clear of the car, drain the remaining fuel into a container with an airtight lid.
13. Remove the carburetor base gasket (insulator). If desired, remove the heater element. Handle the heater carefully, protecting it from impact or pulling on the wire.
14. Before installation, inspect the mating surfaces of the carburetor and manifold. They should be clean and free of nicks, burrs or any pieces of gasket material. Clean the surfaces as necessary and remove any slight imperfections with crocus or emery cloth.
15. Reinstall the heater element and put a new carburetor gasket on the surface of the manifold.
16. Carefully locate the carburetor on top of the gasket with all holes lined up. Install the carburetor bolts, tightening them alternately and evenly in small increments. The gasket must be compressed evenly to prevent leakage. Tighten the bolts to 13 ft. lbs. (18 Nm).
17. Connect the wiring harness to the heater element, the solenoid valve and the throttle position sensor.
18. If equipped with an automatic transmission, connect the throttle control cable and install the locking pin securely.
19. Connect the vacuum hoses, inspecting each one for any sign of cracking or hardening. If a hose is suspect, replace it.
20. Install the coolant hose and secure the clamp.
21. Connect the accelerator cable.
22. Reinstall the air cleaner, connecting the hoses and ductwork as necessary. Make certain the air cleaner body is properly seated on the carburetor and that each hose is firmly attached.
23. Refill the cooling system with coolant.
24. Connect the negative battery cable.
25. Double check all installation items, paying particular attention to loose hoses or hanging wires, untightened nuts, poor routing of hoses and wires (too tight or rubbing) and tools left in the engine area.
26. Start the engine. It will require a longer cranking period and two or three pumps of the accelerator pedal before it starts.

    CAUTION
    Do NOT prime the engine by pouring fuel into the air horn of the carburetor. This outdated and foolish practice can result in severe injury or damage.

27. While the engine is warming up, check the work area carefully for any sign of fuel, coolant or vacuum leaks and attend to them immediately. Set the idle speed and make other necessary adjustments to the accelerator or throttle control cables after the engine is running smoothly and is fully warmed up.