Connecting Rod: Testing and Inspection

1. Check connecting rod bushing and large end diameters:
Rod Bushing Diameter:
^ Standard: 19.420-19.506 mm (0.7670-0.7685 inch).
^ Service Limit: 19.526 mm (0.769 inch) max.
Large End Bore Diameter:
^ Standard: 50.193-50.207 mm (1.9761-1.9767 inch).
^ Service Limit: 50.207 mm (1.9767 inch) max.





2. Inspect connecting rods:
a. Using a rod aligner, check the connecting rod alignment. Check for bend. Maximum bend per 100 mm (3.94 inch) is 0.28 mm (0.011 inch) max. If bend is greater than maximum, replace the connecting rod assembly.
b. Check for twist. Maximum twist per 100 mm (3.94 inch) is 0.320 mm (0.0126 inch) max. If twist is greater than maximum, replace the connecting rod assembly.

NOTE: When replacing the connecting rod, always replace the bearings.