Carter AFB Exploded Diagram

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Carter AFB Exploded Diagram – 9000

AFB Exploded
1. Cover plate screw
2. Cover plate
3. Step-up rod
4. Step-up retainer spring
5. Step-up piston
6. Vacuum piston spring
7. Pin spring
8. Pump connector rod.
9. Fast idle cam connector rod
10. Countershaft lever
11. Choke connector rod
12. Pump lever screw
13. Pump lever
14. Pump S link
15. Fuel inlet fitting
16. Fuel inlet fitting gasket
17. 3/16″ Fresh air choke hose
18. Bowl cover screw
19. Bowl cover screw
20. Bowl cover
21. Float pin
22. Float
23. Needle & seat assembly
24. Bowl cover gasket
25. Plunger assembly
26. Lower plunger spring
27. Vent valve
28. Float bowl baffle 29. Secondary venturi assy. screw
30. Secondary venturi assembly
31. Secondary venturi assy. gasket
32. Auxillary valves and shaft
33. Primary venturi assembly screw
34. Primary venturi assembly
35. Primary venturi assembly gasket
36. Pump jet housing screw
37. Pump jet housing
38. Pump jet gasket
39. Pump discharge check needle, or ball & weight
40. Primary metering jet
41. Secondary metering jet
42. Idle mixture screw
43. Idle mixture screw spring
44. Coil housing retainer screw
45. Coil housing retainer
46. Choke ground wire
47. Coil housing
48. Coil housing gasket
49. Baffle plate
50. Piston housing attaching screw
51. Piston housing
52. Piston housing gasket
53. Throttle body casting
54. Base gasket

Carter AFB 9000 Carburetor KitCarter AFB Carburetor Kit

Recent Posts

How a Choke Works Integral Type

When the engine is cold a richer fuel mixture is needed. As it warms up the mixture must be leaned out. This is where the automatic choke circuit comes into play.
Choke ThermostatChoke Thermostatic Coil

The choke shaft extends through the carburetor into a round housing. Inside the housing there is a thermostatic coil spring. This spring will wind & unwind depending on the temperature. When cold the thermostat will hold the choke valve closed. As the temperature warms up, the spring expands and allows the choke valve to open.



Vacuum BreakChoke Vacuum Piston

The choke vacuum piston is linked to the choke butterfly by a small linkage. At idle, which will have full vacuum, the piston will be pulled into the piston well. This puts pressure against the thermostat coil trying to open the choke valve slightly.


Offset Choke Valve

Not all carburetors will have this air valve. Marvel Schebler & the Holley 1 barrel carburetors are a few examples that do. The air valve is placed offset on the choke valve. This keeps the choke from causing a too rich condition.

stove PipeStove Pipe

Most automatic chokes systems will use a stove pipe to heat up the thermostat coil. The pipe heats up, using the exhaust manifold and the heat is then pulled up to the thermostat using vacuum from the carburetor, which is fed by the intake manifold.

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