Preparation Before Engine Disassembly

At the same time, before disassembly, a comprehensive inspection of the overall condition of the engine should be conducted, and the conditions before and during disassembly should be recorded. Each component should be inspected, and identification marks should be added to wires, components, bearing shell positions and other parts. Components should be removed from the cylinder block in a convenient order, and marks should be made on the removed components to identify their assembly positions. Components (except electrical parts) should be placed on a trolley for cleaning. Hoses, O-rings, gaskets and lock washers should be discarded. In addition, when removing screws from parts such as the oil cooler shell, oil pan connecting plate, front gear chamber cover and connecting plate, attention should be paid to their lengths to ensure correct thread fit during assembly.