How do replace connecting rod bearings?

Answer 1

1. Clean the bearing surface of connecting rod and connecting rod cap. 2. Clean upper connecting rod bearing and lubricate the bearing face with clean engine oil. 3. Clean lower connecting rod bearing and lubricate the bearing face with clean engine oil. NOTE: Align the tabs on the connecting rod bearingswith the tab grooves in the connecting rod. 4. Install upper connecting rod bearing in connecting rod. 5. Pull the connecting rod into position against thecrankshaft. The connecting rod may need to be rotated in order to prevent contact with the piston cooling jet. 6. Install lower connecting rod bearing in connecting rod cap. 7. Install bearing cap in position on connecting rod. Ensure that the identification numbers are stamped on the same side. 8. If you have Type A connecting rods, install two bolts and two nuts. If you have Type B connecting rods, install two bolts. The torque is very important. It's probably 40 ft pounds plus 1/4 turn.

9. Repeat Steps 1 through 8 for the remaining connecting rod bearings.

Answer 2

This has several twists and turns and would require several hours typing to explain properly.

Please visit your local library or purchase a suitable Haynes or Chilton manual for this project.

Answer 3

In general, this job would be best done with the engine removed from vehicle. Once the engine is removed, mount the engine on an engine stand and diassemble the front and lower half of engine until the crankshaft is exposed. Once the crankshaft is removed, have it inspected at a qualified machine shop to determine if it needs to be reground or just polished. Replace crankshaft with new bearings of correct dimensions. Going this deep into the engine, you may want to consider rebuilding the complete engine. A shop manual for that vehicle would be a must if you intend on tackling this job your self. A complete set of tools and at least some knowledge about rebuilding an engine would be necessary otherwise your time and money would be wasted.