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Sunday, April 2, 2023

how manual transmission works, Stick shift gearbox operation


 we have presented a 4 speed manual transmission, the gear engagement, gear shifting, synchronization and speed change are clearly visible. (If you want to learn more about how synchronization takes place, please find a video that explains it in detail in this channel!


When your car starts making strange noises or vibrations, it’s never a good thing – especially if it’s coming from the transmission. Noise – whether it’s banging, grinding or scraping – it deserves your immediate attention.  Those sounds are your warning that trouble’s coming, and you need to take action right away. The sooner the better! Each day that goes by raises the likelihood of a costly transmission repair on the horizon.


Generally speaking, manual transmissions make more sound than automatic transmissions, and this is especially true in older model vehicles. Though some sounds are normal and can’t be eliminated, new sounds are definitely cause for concern. You need to know whether what you’re hearing is a sign that you need a manual transmission repair.


Because they have fewer parts, it’s generally easier to identify manual transmissions problems. Here are the most common sounds to listen for, and what they often mean.


Noise heard no matter what gear the vehicle is in. This problem is usually caused by improper or low transmission fuel levels.

Noise hear in one particular gear. Usually means that there’s damage to that gear.

Noise heard in forward gears, but not reverse or neutral. Usually means a problem with the counter shaft.

Noises heard whenever the clutch is engaged or disengaged. This is usually not caused by the transmission; it’s most often a problem with the clutch bearing.

Noise appears when the transmission is in neutral but the clutch is engaged. This is usually a problem with the bearings or input shaft.


Always remember that abnormal transmission sounds and vibrations are a sign that your vehicle needs attention!

Text source: https://transmissionrepairdallastx.co...

A manual transmission also known as manual gearbox, standard transmission or stick shift is a multi-speed motor vehicle transmission system, where gear changes require the driver to manually select the gears by operating a gear stick and clutch (which is usually a foot pedal for cars or a hand lever for motorcycles).

Early automobiles used sliding-mesh manual transmissions with up to three forward gear ratios. Since the 1950s, constant-mesh manual transmissions have become increasingly commonplace and the number of forward ratios has increased to 5-speed and 6-speed manual transmissions for current vehicles.

The alternative to a manual transmission is an automatic transmission.


A manual transmission requires the driver to operate the gear stick and clutch in order to change gears (unlike an automatic transmission or semi-automatic transmission, where one (typically the clutch) or both of these functions are automated). 


In a vehicle with a manual transmission, the flywheel is attached to the engine's crankshaft, therefore rotating at engine speed. A clutch sits between the flywheel and the transmission input shaft, controlling whether the transmission is connected to the engine (clutch engaged- the clutch pedal is not being pressed) or not connected to the engine (clutch disengaged- the clutch pedal is being pressed down). 


Contemporary manual transmissions for cars typically use five or six forward gears ratios and one reverse gear. Transmissions for trucks and other heavy equipment often have between eight and twenty-five gears in order to keep the engine speed within the optimal power band for all typical road speeds. Operating such transmissions often uses the same pattern of shifter movement with a single or multiple switches to engage the next sequence of gears.

A manual transmission is a house of various components like gears, shafts and various selecting mechanism that are arranged in a special fashion to provide appropriate torque and speed ratios to compete with the challenges provided by the different road conditions, the shifting from high torque to high speed and vice-versa is performed manually by symmetrical pushing and pulling of the gear lever by the driver.



 we have presented a 4 speed manual transmission, the gear engagement, gear shifting, synchronization and speed change are clearly visible. (If you want to learn more about how synchronization takes place, please find a video that explains it in detail in this channel!


When your car starts making strange noises or vibrations, it’s never a good thing – especially if it’s coming from the transmission. Noise – whether it’s banging, grinding or scraping – it deserves your immediate attention.  Those sounds are your warning that trouble’s coming, and you need to take action right away. The sooner the better! Each day that goes by raises the likelihood of a costly transmission repair on the horizon.


Generally speaking, manual transmissions make more sound than automatic transmissions, and this is especially true in older model vehicles. Though some sounds are normal and can’t be eliminated, new sounds are definitely cause for concern. You need to know whether what you’re hearing is a sign that you need a manual transmission repair.


Because they have fewer parts, it’s generally easier to identify manual transmissions problems. Here are the most common sounds to listen for, and what they often mean.


Noise heard no matter what gear the vehicle is in. This problem is usually caused by improper or low transmission fuel levels.

Noise hear in one particular gear. Usually means that there’s damage to that gear.

Noise heard in forward gears, but not reverse or neutral. Usually means a problem with the counter shaft.

Noises heard whenever the clutch is engaged or disengaged. This is usually not caused by the transmission; it’s most often a problem with the clutch bearing.

Noise appears when the transmission is in neutral but the clutch is engaged. This is usually a problem with the bearings or input shaft.


Always remember that abnormal transmission sounds and vibrations are a sign that your vehicle needs attention!

Text source: https://transmissionrepairdallastx.co...

A manual transmission also known as manual gearbox, standard transmission or stick shift is a multi-speed motor vehicle transmission system, where gear changes require the driver to manually select the gears by operating a gear stick and clutch (which is usually a foot pedal for cars or a hand lever for motorcycles).

Early automobiles used sliding-mesh manual transmissions with up to three forward gear ratios. Since the 1950s, constant-mesh manual transmissions have become increasingly commonplace and the number of forward ratios has increased to 5-speed and 6-speed manual transmissions for current vehicles.

The alternative to a manual transmission is an automatic transmission.


A manual transmission requires the driver to operate the gear stick and clutch in order to change gears (unlike an automatic transmission or semi-automatic transmission, where one (typically the clutch) or both of these functions are automated). 


In a vehicle with a manual transmission, the flywheel is attached to the engine's crankshaft, therefore rotating at engine speed. A clutch sits between the flywheel and the transmission input shaft, controlling whether the transmission is connected to the engine (clutch engaged- the clutch pedal is not being pressed) or not connected to the engine (clutch disengaged- the clutch pedal is being pressed down). 


Contemporary manual transmissions for cars typically use five or six forward gears ratios and one reverse gear. Transmissions for trucks and other heavy equipment often have between eight and twenty-five gears in order to keep the engine speed within the optimal power band for all typical road speeds. Operating such transmissions often uses the same pattern of shifter movement with a single or multiple switches to engage the next sequence of gears.

A manual transmission is a house of various components like gears, shafts and various selecting mechanism that are arranged in a special fashion to provide appropriate torque and speed ratios to compete with the challenges provided by the different road conditions, the shifting from high torque to high speed and vice-versa is performed manually by symmetrical pushing and pulling of the gear lever by the driver.


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