Vaz -21213 Repair Manual page 22

The connecting rod small-end features a pressed-in steel-
bronze bush. As to the diameter of the bush, the connecting rods
are divided into three classes in steps of 0.004 mm (similar to the
pistons).
The class number (5 in Fig.2-30) is engraved on the big-end
cap.
The connecting rod small-end and big-end are classified
weight-wise (Table 2-1) and are paint marked on the connecting
Fig.2-30. Marking on the piston and connecting rod:
1 - arrow on piston crown for orientation in cylinder; 2 - oversize; 3 - piston class;
4 - class of gudgeon pin hole; 5 - connecting rod class as to gudgeon pin hole;
6 - cylinder No
22
rod. The engine must always be fitted with the connecting rods of
the same weight class. The connecting rod weight can be adjust-
ed by removing excess metal from the bosses on the small-end
or big-end up to the minimum size of 16.5 mm or 35.5 mm (Fig.2-
31).
Fig.2-31. Locations of possible metal removal subject to adjusted con-
necting rod small-end and big-end weights