Use the wooden handle of a hammer (A) to drive out the piston/connecting rod assembly (B).

Reinstall the lower block and bearings on the engine in the proper order.

Reinstall the connecting rod bearings and caps after removing each piston/connecting rod assembly.

Mark each piston/connecting rod assembly with its cylinder number to make sure they are reused in the original order.

NOTE: The existing number on the connecting rod does not indicate its position in the engine, it indicates the rod bore size.