TIAGO

1.05L REVOTORQ ENGINE 64 22. If connecting rod big end parent bore dimension is maintained within specified limits, proper bearing bore dimension is automatically achieved. 23. However, it must be physically measured and confirmed. Measure pretension of connecting rod bearing shell with a feeler gauge after loosening connecting rod bearing cap mounting nut on opposite side of bearing shell lug. Pretension Gap: 0.120 to 0.180 mm. NOTE  Connecting rod bearing shells are precision finished and should not be bored or scraped. Maintenance Limit Maximum permissible taper and ovality of connecting rod 0.004 mm Small end parent bore cylindricity 0.008 mm Connecting rod small end bush inside diameter (finished after installation) 26.276 - 26.428 mm Maximum permissible out of parallelism (bend) between connecting rod small end and big end parent bores, measured at a distance of 50 mm from centre line of connecting rod. 0.030 mm Center to center distance between connecting rod small end and big end parent bores 127.0 ± 0.05 mm Maximum permissible twist of connecting rod 0.050 mm Connecting rod big end parent bore diameter 48.655 - 48.671 mm Big end parent bore and cylindricity 0.01 mm Bearing shell to be selected such that clearance is maintained as 0.012 - 0.063 mm Crush height of connecting rod big end bearing shells 0.013 - 0.051 mm Maximum permissible difference in weight of connecting rods 3 gms Connecting rod big end axial play 0.8 - 1.2