The cylinder liner wear of Weifang Weichai diesel engine can be divided into three situations, namely abrasive wear, fusion wear and corrosion wear. Therefore, to solve this problem, we must proceed from these three points.

1. Abrasive wear is mainly due to unclean air intake; unclean during assembly; poor combustion causes carbon deposits.

2. Fusion wear is mainly caused by high temperature or poor lubrication of the inner wall of the cylinder and the piston ring.

3. Corrosion wear is mainly caused by the sulfur content in the fuel and combustion products, which form acid corrosion on the cylinder wall, and the separated particles become abrasive wear, so the corrosion and wear are harmful.

After understanding the reasons for the wear of the cylinder liners of Weifang Weichai diesel engines, we can solve the problem based on the above-mentioned content and the actual situation of the machine.