Which component moves the fuel linkage, causing an increase or decrease in the fuel delivered to the cylinders?

Which component moves the fuel linkage, causing an increase or decrease in the fuel delivered to the cylinders?

• A. Governor
• B. Fuel pump
• C. Cam
• D. Throttle

Answer: (A)

Controlling engine speed automatically is done by the governor. It senses how fast the engine is turning and moves the fuel linkage that controls the fuel metering device. When engine speed rises, the governor shifts the linkage to reduce fuel delivery, helping slow the engine. When speed falls, it allows more fuel through, boosting RPM back up. This automatic adjustment keeps the engine running at the desired speed. The other parts have different roles: the fuel pump mainly pushes fuel to the system but doesn’t regulate the amount reaching the cylinders by itself; the cam governs valve timing, not how much fuel is being delivered; and the throttle controls air intake and is not the automatic regulator of fuel quantity in response to speed.

Controlling engine speed automatically is done by the governor. It senses how fast the engine is turning and moves the fuel linkage that controls the fuel metering device. When engine speed rises, the governor shifts the linkage to reduce fuel delivery, helping slow the engine. When speed falls, it allows more fuel through, boosting RPM back up. This automatic adjustment keeps the engine running at the desired speed.

The other parts have different roles: the fuel pump mainly pushes fuel to the system but doesn’t regulate the amount reaching the cylinders by itself; the cam governs valve timing, not how much fuel is being delivered; and the throttle controls air intake and is not the automatic regulator of fuel quantity in response to speed.