Crankshaft Main Bearing

Crankshaft Main Bearing Size Codes

Upper









When replacing the crankshaft bearing upper, select a bearing with the size corresponding to the crankshaft journal diameter in the table below.
The crankshaft bearing upper has an identification mark at the illustrated position.





Install the selected crankshaft bearing upper.

Lower









When replacing the crankshaft bearing lower, select a bearing with the size corresponding to the crankshaft journal diameter in the table below.
The crankshaft bearing lower has an identification mark at the illustrated position.





Install the selected crankshaft bearing lower.

Crankshaft Main Bearing Clearance

Standard value 0.012 - 0.030 mm (0.0005 - 0.0012 inch)

Limit 0.08 mm (0.0031 inch)

Crankshaft Main Bearing Cap Bolts





Install the crankshaft bearing cap with reference to the identification mark as illustrated.





Make sure that the underhead length of the bolt is at or below the limit before installing the crankshaft bearing cap bolt. If the length exceeds the limit, replace the bolt with a new one.

Limit 75.5 - 76.5 mm (2.972 - 3.012 inch)

Apply engine oil to the threaded portion and seat surface of the bolt.

Tighten 26.5 ± 2.0 Nm (20 ± 1 ft-lb) according to the tightening order

CAUTION
When the tightening angle is smaller than the specified tightening angle, the appropriate tightening capacity cannot be secured.
When the tightening angle is larger than the specified tightening angle, remove the bolt to start from the beginning again according to the procedure.





Tighten 45° according to the tightening order