Connecting Rod

Inspection
1. Thoroughly clean the connecting rod and rod cap.
2. Mark each connecting rod and its corresponding rod cap for correct installation.





3. Measure the inside diameter of the piston pin bushing. Install a new piston pin bushing if not within specification.





4. If the piston pin bushing has been removed from the connecting rod, measure the inside diameter of the piston pin bushing bore. Install a new connecting rod if the piston pin bushing bore is not within specifications.





5. Using a suitable micrometer, measure the connecting rod bearing bore.
1. Remove the connecting rod bearings from the connecting rod and the connecting rod cap. Install the connecting rod cap onto the connection rod.
2. Further tighten the connecting rod cap nuts.
3. Measure and record the connecting rod bearing bore as indicated. Install new connecting rods if not within specification.





6. Using a suitable micrometer, measure the connecting rod bearing bore at three different places as indicated.
^ If the difference between any two readings is greater than the maximum out-of-round specification, install a new connecting rod.





7. Using a suitable micrometer, inspect the connecting rod bearing bore taper.
1. Measure the bearing bore inside diameter near the large chamfer.
2. Measure the bearing bore inside diameter near the small chamfer.
^ The difference between the two readings is the bore taper. Install a new connecting rod if not within specifications.