1. Using a special tool, remove the ledge in the upper part of the cylinder, formed as a result of wear and deposits of combustion products.
2. Turn the engine over with the crankshaft up.
3. Using feeler gauges, measure the side clearance of the connecting rods. If the clearance exceeds the limits, the connecting rod must be replaced. If you have any doubts, contact the experts.
4. If the connecting rods and connecting rod caps are not numbered, number them.
5. Unscrew the fixing nuts, and remove the cover of the first connecting rod and the bearing shell.
6. Put pieces of rubber tube on the connecting rod bolts so as not to damage the crankshaft journal and cylinder walls.
7. Remove the bearing shell and remove the connecting rod with the piston.
8. Remove the rest of the connecting rods and pistons in the same way.