Checking the connecting rods
1 - Connecting rod; 2 - Connecting rod cover; 3 - Bushing; 4 - Guide grooves; 5 - Connecting rod bolt; 6 - Balancing weights; 7 - Identification field (turbocharged models); 8 - Grooves for inserts installation; 9 - Oil channel (turbocharged models); 10 - Oil channel (non-turbo models); 11 - Identification field (non-turbo models); b - Width of the upper head of the connecting rod; B - Width of the lower head of the connecting rod; d - Inner diameter of the bushing of the upper head of the connecting rod; d1 - Outer diameter of the bushing of the upper head of the connecting rod; D1 - Diameter of the hole of the lower head of the connecting rod; L - distance between the centers of the holes of the connecting rod heads
1. Remove the pistons (see Section Removal and installation of pistons).
2. Check connecting rods for discoloration, misaligned holes and notches. If these damages are found, the connecting rods must be replaced.
3. Check the connecting rod cap bolts.
4. Measure the diameter of the connecting rod bore. If the diameter is larger than the maximum allowable, grind off the contact surface of the cap by no more than 0.02 mm.
5. Check the inside diameter of the connecting rod bush.
6. Installation is carried out in the reverse order of removal. The dimensions of the connecting rods are given in Specifications.