Shifting gears without using the clutch is something that can be done in most manual gears. To do so, the engine is placed at the same rotational speed presented by the gearbox. Note, however, that this method can only be used with the vehicle in motion. It is impossible to set it in motion without using the clutch.
Steps
Method 1 of 2: Upshifting
Step 1. When the car is moving and is sufficiently engaged in the current gear, take your foot off the accelerator to relieve the pressure on the shift and immediately take the shift valve out of the current gear
Step 2. Move the valve toward the desired gear, applying a small force
Note that the force required can vary: too much force can cause the gear to shift too soon, which can cause the gears to twist too tightly and wear out. If the force is low, the gear will not engage, which also causes entanglement and wear on the parts involved.
Step 3. The carriage will shift into gear when the engine rotation speed is equal to the shift shaft speed
Step 4. When the car is re-engaged, you can continue driving in the usual way
Method 2 of 2: Slowing Down
Step 1. When the car is moving and the current gear is too low to maintain adequate power, take your foot off the accelerator and shift the gear out of gear
Step 2. Lightly depress the throttle once to bring the engine up to somewhere close to 2000 to 2500 RPM (exact speed varies with gearshift)
Step 3. When the engine rotation speed is decreasing, move the shift valve to the desired gear, forcing it gently
The range will engage when the engine RPM is equal to the transmission RPM
Step 4. When the car is re-engaged, you can continue driving in the usual way
Tips
Pay attention to the rotation speed of the engine, note at which point each gear engages (which varies according to speed). This allows you to shift gears without a clutch more efficiently
Notices
- Allow engine speed to decrease slightly before applying force to gear. If you force it before then, the car may shift too soon, which can cause the gears to snag and wear out.
- Note that not all gears are "light" enough to shift gears without using the clutch. Excessive retries on gears of this type can cause damage to the gearbox if threading and wear are excessive. Some high power transmissions can wear gears much more easily and, at the same time, make it more difficult to change gears without using a clutch. This procedure is easier to be done in simpler gearboxes, such as small or medium-sized cars, light trucks and sports cars.
- This procedure can only be done with the vehicle in motion. It is not possible to put a manual transmission car in motion without using the clutch.
