What are the causes of engine flywheel wear?

[DelLorenzo]

Engine flywheel wear is caused by: 1. Improper driving operation; 2. No free travel of the clutch; 3. Insufficient pressure of the clutch pressure plate, which keeps the clutch and flywheel in a semi-engaged state, thereby exacerbating the wear of the flywheel surface. The working surface of the flywheel should be smooth and clean, free from scratches, burns, cracks, warping deformation, and other damage defects. Otherwise, the flywheel should be repaired or replaced. The flywheel is a disc with a large moment of inertia, installed on the flange at the rear end of the engine crankshaft. A ring gear is pressed onto the outer edge of the flywheel, which can mesh with the gear of the starter. At the same time, the rear side serves as a mating surface for the clutch, usually marked with the ignition timing mark for the first cylinder to facilitate the calibration of ignition timing.