Operation CHARM: Car repair manuals for everyone.

Disassembly

Fig. 3 Removing choke diaphragm:




Fig. 4 Removing accelerator pump lever & shaft:




Fig. 5 Removing main metering jets:





1. Remove air cleaner bolt and retainer assembly, then, on Dakota models, the bowl vent cover plate and gasket.
2. Remove cotter pin from accelerator pump arm link, then the link.
3. Remove bowl vent assembly from air horn, if equipped.
4. On Dakota models, remove vacuum kicker wire from connector, noting location for proper assembly, then remove vacuum kicker.
5. On all models, remove choke vacuum diaphragm hose from main body.
6. Remove choke diaphragm, linkage and bracket assembly, Fig. 3.
7. Remove nut and washer attaching fast idle cam lever to choke shaft. Disconnect fast idle connector link from lever and fast idle cam. Disconnect, then remove accelerator operating link.
8. Remove six attaching screws, then lift air horn from main body and discard gasket.
9. Remove ``E'' clip attaching accelerator pump operating shaft, then pull shaft out, Fig. 4.
10. Remove accelerator pump arm and internal pump lever.
11. Except on Dakota models, proceed as follows:
a. Using a suitable tool, hold flat area on accelerator pump shaft, then remove cap nut.
b. Remove vacuum power valve piston by gently prying up retaining ring tangs.
c. Remove mechanical power valve push rod and spring assembly by gently prying off the plastic cap. Remove ``E'' clip.
12. On Dakota models, proceed as follows:
a. The power piston assembly retaining ring is staked in position and must be removed carefully. Remove staking with suitable tool, then remove vacuum piston from bowl cover by depressing piston and allowing it to snap up against retaining ring.
b. Remove 2 O2 feedback solenoid retaining screws and gently lift solenoid from main body, discarding gasket.
13. On all models, remove fuel inlet fitting from main body, then discard gasket.
14. Remove float hinge pin, float baffle and float assembly.
15. Remove main metering jets, Fig. 5.
16. Using tool No. C-4231 or equivalent, remove vacuum and mechanical power valves. Ensure blade is squarely seated in valve top slot to avoid damaging the power valve needle. Do not interchange the mechanical and power valve assemblies. The vacuum power valve needle is approximately .050 inch longer than the mechanical power valve needle. The vacuum power valve needle can be identified by an undercut groove located just above the needle stop. The valve seats can be identified by a number stamped on the valve assembly and they must be kept with their respective needle and spring assemblies. The mechanical power valve is located on the choke side of the carburetor and the vacuum power valve is located on the throttle side of the carburetor.


Fig. 6 Remove venturi cluster assembly:




Fig. 7 Removing fast idle cam:





17. Remove venturi cluster attaching screws, then lift venturi cluster and gasket from main body, Fig. 6. Discard gasket. Do not remove idle well tubes.
18. Invert carburetor and allow weight and check ball to drop from carburetor.
19. Remove four throttle body attaching screws, then separate carburetor bodies and gasket. Discard gasket.
20. Remove fast idle cam retaining ``E'' clip, then slide fast idle cam off stub shaft, Fig. 7.