Where is the automatic choke?
The automatic choke found on most American collector cars is a simple flapper valve in the “throat” of the carburetor. When you close the flap, less air enters the engine. More gas goes in, which is what you want for cold starting. As the engine warms, the flap opens to let the engine breathe more air.
What does automatic choke mean?
1. automatic choke – a choke that automatically controls the flow of air to the carburetor. choke – a valve that controls the flow of air into the carburetor of a gasoline engine.
How does auto choke work?
Automatically – An automatic choke uses a metal spring to open and close the choke plate. The spring is wound in a housing and attached to the choke linkage on one end. As the engine warms up, it warms the metal spring. As the spring warms, it expands, rotates, and opens the choke plate.
How does a automatic choke work?
What does the choke pull off do?
Pull-off or break: The pull-off is manifold vacuum-operated and is designed to open the choke plate slightly after the engine starts, to decrease the signal at the booster. It pulls the choke plate open against spring tension. Upon cooling, the spring contracts back into a tighter coil.
Is the choke open or closed?
The choke is a plate in the carburetor that opens and closes to allow more or less air into the engine. The choke is only used when starting a cold engine. When doing a cold start, the choke should be closed to limit the amount of air going in.
How do you set an automatic choke on a car?
Setting An Automatic Choke. When Setting An Automatic Choke the vehicle must be cold (hasn’t run for 4-5 hours): Remove the air cleaner assembly and depress the throttle twice. The first throttle press is to set the choke plate, and the second is to give the motor a shot of fuel.
What should I do if my choke is out of adjustment?
Over time, the automatic choke can become out of adjustment and will require readjustment to continue working properly. The opening and closing of the butterfly valves of the carburetor is also determines the amount of the fuel/air mixture. Park the vehicle and shut off the engine. Wait a couple of hours for the engine to cool completely.
What does the choke do on an engine?
The automatic choke is the main component that regulates the air/fuel mixture while the engine is being cranked.
Where is the choke on a air cleaner?
Unscrew the wing nut from the air cleaner assembly with pliers and remove it from the top of the carburetor. Locate the automatic choke element on the right side of the carburetor. The automatic choke element is round, with three screws that mount it to the carburetor. Locate the throttle lever on the left side of the carburetor.