When shifting an automatic transmission (automatic transmission), some vehicles may experience a slight engine tilt. This happens for the following reasons:
Engine torque change:
*When you change gears, the amount of torque transmitted from the engine to the gearbox changes.
* This moment exerts an impact on the engine, causing it to tilt.
Torque converter:
* The automatic transmission uses a torque converter to transmit torque.
* The torque converter is locked or unlocked depending on the load being transmitted and the speed.
* A locked torque converter may cause the engine to tilt slightly.
Engine Mounts:
* The engine is mounted on mounts that isolate it from the vehicle frame.
* When large torque is transmitted, the engine mounts may become deformed, causing the engine to tilt.
Torsion damper:
*Some engines are equipped with a torsion damper to help reduce vibration.
* Torsion damper can be installed one at each end of the crankshaft.
* When shifting gears, the damper can compensate for changes in torque that cause the engine to lean.
It is normal for the engine to lean when shifting gears. However, if the tilt is excessive or is accompanied by other signs of trouble, such as vibration or noise, diagnosis and repair may be required.