A manual transmission, also known as a manual gearbox, stick shift, n-speed manual (where n is its number of forward gear ratios), standard, MT, or in colloquial U.S. English, a stick (for vehicles with hand-lever shifters), is a type of transmission used in motor vehicle applications. It uses a driver-operated clutch engaged and disengaged by a foot pedal (automobile) or hand lever (motorcycle), for regulating torque transfer from the engine to the transmission; and a gear selector operated by hand (automobile) or by foot (motorcycle).
Parts of a Manual Transmission
Clutch and Clutch Pedal
Consisting of various small components, the clutch transmits engine torque to the transmission. The clutch pedal is a hydraulically controlled piece of gear that disengages the clutch when you depress it.
The circular mass sends engine torque to the clutch disc that interacts with a smooth surface of the wheel.
Selector Fork and Collar
It’s an arm-like piece of gear that helps in moving the collars along the output shaft. On the other hand, you can select different gears with the collar by locking it to a particular gear, resulting in passing the torque to the output shaft from the layshaft.
These help the gear and the collar to engage with each other and match their speed in case if there’s a difference.
Layshaft and Output Shaft
The layshaft’s gears mesh with the output shaft’s gears when the first one receives the engine power.
You will find gears of various sizes in a manual gearbox. Larger ones have more teeth and provide more torque to curtail the car’s speed while the smaller ones produce less torque so that your vehicle can run at high speed.
Advantages of a Manual Transmission
Manual transmissions typically cost less than their automatic transmissions because manual transmission have less moving parts as well as being less in demand.
Since manuals have less moving parts and are by nature far simpler than automatics, this means that they are easier and cheaper to maintain.
Manual transmissions usually have better acceleration, less weight, and less power loss than an automatic transmission in the same car.
Issues you may experience with Transmission