Operation CHARM: Car repair manuals for everyone.

Connecting Rod Refinishing Dimensions

Center of Big End Bearing Bore to Center of Small End Bushing Bore 148.95 - 149.06
Width of Connecting Rod at Big End Bearing Bore 31.84 - 31.88
Width of Connecting Rod at Small End Bushing Bore 27.90 - 28.10 mm
Basic Bore for Big End Shell Bearings 55.60 - 55.62
Basic Bore for Small End Bushing Normal Size 31.000 - 31.025
Repair Size 31.500 - 31.525
Small End Bushing Outer Diameter Normal Size 31.060 - 31.100
Repair Size 31.560 - 31.600
Small End Bushing Inner Diameter 28.018 -28.024
Peak to Valley Height of Small End Bushing Inside 0.004 mm
Permissible Twist of Big End Bearing Bore to Small End Bushing Bore, Relative to Length of 100 mm 0.1
Permissible Parallel Misalignment of Big End Bearing Bore Axis to Small End Bushing Bore Axis, Relative to Length of 100 mm 0.045
Permissible Difference in Weight Between Any Two Con-Rod Assemblies within One Engine 5