Ford Carburetor Components
1 - carburetor cover, 2 - diffuser movable flap, 3 - metering conical needle, 4 - main fuel jet holder, 5 - float, 6 - valve needle, 7 - throttle valve axis, 8 - movable flap regulator diaphragm, 9 - starting device components, 10 - accelerator pump, 11 - shunt flow adjustment screw, 12 - mixture composition adjustment screw, 13 - idle speed adjustment screw
Disassembly
1. Remove the carburetor cover by unscrewing the seven bolts that secure it (Torx T20 bolts) and remove the cover gasket.
2. Drain the fuel from the float chamber.
3. Unscrew the four screws securing the main fuel jet holder, pull the diffuser movable flap back and remove the main fuel jet holder.
Caution! Do not remove the conical needle that interacts with the main fuel jet. If it is damaged, the entire carburetor must be replaced.
4. Remove the accelerator pump one-way valve.
5. Remove the float and needle valve.
6. Remove the protective cover and unscrew the mixture adjustment screw.
7. Unscrew the screws securing the vacuum regulator cover, remove the cover, spring, its stop and remove the diaphragm.
8. Remove the accelerator pump cover, take out the spring and diaphragm.
Examination
1. Wash the components of the carburetor (wash the diaphragms in an alcohol solution).
2. Blow out all holes and jets with compressed air.
3. Check the condition of the needle valve, float, diaphragms, main fuel jet holder, throttle valve shaft.
4. Check the condition of the conical needle and possible ovality of the jets.
5. Check the correct functioning of the spring that sets the needle position.
Assembling the carburetor
1. Insert the accelerator pump diaphragm, its spring and cover (with the side with the diaphragm gasket facing the carburetor body).
2. Insert the diaphragm reinforcement elements and its spring-loaded mounting ring.
3. Insert the diaphragm. The vacuum hole in the carburetor body should be opposite the hole in the vacuum regulator body.
4. Insert the spring and regulator cover.
5. Screw the mixture adjustment screw in until it stops and back it out three turns. This is the starting position for correct adjustment.
6. Insert the float and its needle valve.
7. Insert the accelerator pump valve ball and place its load in the housing channel.
8. Hold the diffuser flap in the fully open position and insert a new gasket and main fuel jet assembly.
9.Install it in such a way relative to the carburetor body that its flange is at the height of the gasket installation surface.
10. Install a new cover gasket and carburetor cover
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