Crankshaft Main Bearing

Main bearing journal diameter 51.978-52.002 mm (2.046-2.047 in)
Production repair 51.730-51.750 mm (2.036-2.037 in)
Main bearing Clearance 0.016-0.047 mm (0.0006-0.0015 in)

Main Bearing Size code Chart






NOTE:Lubricate the main bearing beam bolts threads and under the bolt heads with clean engine oil.
NOTE:Position the crankshaft to the rear of the cylinder block, then position the crankshaft to the front of the cylinder block before tightening the main bearing beam bolts.






- Tighten the bolts in the sequence shown in 3 stages.
- Stage 1: Tighten to 5 Nm {0.5 kgf-m, 44 in-lbf}.
- Stage 2: Tighten to 25 Nm {2.5 kgf-m, 18 in-lbf}.
- Stage 3: Tighten an additional 90 degrees.