2. If a shoulder has formed in the upper part of the cylinders, then it must be removed with a reamer or scraper, without damaging the cylinder wall. The formation of a shoulder indicates increased wear on the cylinder.
3. The cylinder number must be stamped on the connecting rod and on the connecting rod cap (indicated by arrows), to which this rod belongs. Cylinder N1 is located on the side of the front cover. If the numbers are not visible, then apply them with paint or mark them. Apply marks on the polished side surface of the connecting rod and cap.
4. Set the pistons of the 1st and 4th cylinders to the BDC position.
5. Loosen the connecting rod cap nuts on the 1st cylinder. Remove the cover and remove the lower connecting rod bearing. If the liner is to be installed again, stick it with adhesive tape to the removed cover.
6. Tape the threads of the connecting rod cap bolts.
7. Use a hammer handle to push the piston into the cylinder and remove the piston through the top of the cylinder block. Remove the upper connecting rod bearing and tape it to the removed connecting rod.
8. Put the cover on the connecting rod and secure with nuts, without violating the previous order of assembling the parts.
9. After repeating the above operations, remove the connecting rod with the piston of the 4th cylinder.
10. Similarly, remove the connecting rods with pistons from the 2nd and 3rd cylinders.