Crankshaft Main Bearing

MAIN BEARING CAP BOLTS





Step 1
Install and uniformly tighten the 16 crankshaft bearing cap bolts in the sequence shown in the illustration.
Torque 61 Nm (622 kgf-cm, 45 ft-lbf)

If any of the main bearing cap bolts does not meet the torque specified, replace it.





Step 2
Mark the front of the bearing cap bolts with paint.
Retighten the bearing cap bolts 90° in the order above.
Check that the painted mark is now at a 90° angle to the front.





Install and uniformly tighten the 8 main bearing cap bolts in several steps and in the sequence shown in the illustration.

Torque 52 Nm (525 kgf-cm, 38 ft-lbf)

Bolt (A) length: 45 mm (1.77 in.)
Except bolt (A) length: 30 mm (1.18 in.)
Main Journal Diameter





Crankshaft Specifications














Crankshaft Bearing Cap Set Bolt Standard Diameter

Standard diameter: 10.8 to 11.0 mm (0.4252 to 0.4331 in.)
Minimum diameter: 10.7 mm (0.4213 in.)
Measuring point: 40 mm (1.57 in.)

Main Journal Taper And Out-of-round

Maximum taper and out-of-round: 0.02 mm (0.0008 in.)

Main Bearing Size Codes

There are 5 sizes of standard bearings, marked "1", "2", "3", "4" and "5" accordingly.





Crankshaft main journal diameter:





Standard upper bearing center wall thickness (No. 1 and No. 4 journal):





Standard lower bearing center wall thickness (No. 1 and No. 4 journals):





Standard upper bearing center thickness (No. 2 and No. 3 journals):





Standard lower bearing center thickness (No. 2 and No. 3 journals):