Crankshaft marking:
1 - diameter class of the connecting rod journal No. 1;
2 - diameter class of the connecting rod journal No. 2;
3 - diameter class of the connecting rod journal No. 3;
4 - diameter class of the connecting rod journal No. 4;
5 - diameter class of the main neck No. 1;
6 - diameter class of the main neck No. 2;
7 - diameter class of the main neck No. 3;
8 - diameter class of the main neck No. 4;
9 - diameter class of the main neck No. 5.