Main & Connecting Rod Bearings
Check crankshaft end play at number 4 main bearing with feeler gauge. Check main and connecting rod bearing clearance using Plastigage method. Main bearings are numbered 1 through 6 with 1 at drive belt end and 6 at flywheel end. Install bearing shells with lubrication grooves in block and shells without grooves in bearing caps. All bearing shells must be installed in original position if they are not being replaced. Use new connecting rod cap nuts.
CRANKSHAFT JOURNAL DIAMETERS
| Size | Main Bearing In. (mm) | Connecting Rod In. (mm) |
|---|---|---|
| Std. | 2.282(57.97) | 1.810(45.97) |
| 1st US | 2.272(57.72) | 1.800(45.72) |
| 2nd US | 2.263(57.47) | 1.790(45.47) |
| 3rd US | 2.253(57.22) | 1.780(45.22) |
NOTE:
Bearing clearance may be checked with engine installed in vehicle. DO NOT turn crankshaft when checking with Plastigage.