Crankshaft Main Bearing: Specifications

Main Bearing Cap





Install the crankshaft bearing cap bolts.

HINT:
The bearing cap bolts are tightened in 2 progressive steps.
If any one of the bearing cap bolts is broken or deformed, replace it.

Apply a light coat of engine oil to the threads and under the heads of the crankshaft bearing cap bolts.
Install and uniformly tighten the 10 crankshaft bearing cap bolts in several steps, in the order shown in the illustration.
Torque 27 Nm (275 kgf/cm, 20 in. lbs.)
If any one of the bearing cap bolts does not meet the torque specification, replace the bearing cap bolt.





Mark the front of the crankshaft bearing cap bolts with paint.
Retighten the crankshaft bearing cap bolts by 90° in the order shown.
Check that the painted mark is now at a 90° angle to the front.
Check that the crankshaft turns smoothly.

Main bearing cap bolt tension portion diameter
STD 10.760 to 10.970 mm (0.4236 to 0.4319 in.)
Minimum 10.40 mm (0.4094 in.)
Main bearing center wall thickness
No. 1 and No. 5 Mark 3 2.487 to 2.490 mm (0.0979 to 0.0980 in.)
Mark 4 2.490 to 2.493 mm (0.0980 to 0.0982 in.)
Mark 5 2.493 to 2.496 mm (0.0982 to 0.0983 in.)
Mark 6 2.496 to 2.499 mm (0.0983 to 0.0984 in.)
Mark 7 2.499 to 2.502 mm (0.0984 to 0.0985 in.)
Other Mark 1 2.481 to 2.484 mm (0.0977 to 0.0978 in.)
Mark 2 2.484 to 2.487 mm (0.0978 to 0.0979 in.)
Mark 3 2.487 to 2.490 mm (0.0979 to 0.0980 in.)
Mark 4 2.490 to 2.493 mm (0.0980 to 0.0982 in.)
Mark 5 2.493 to 2.496 mm (0.0981 to 0.0983 in.)