Crankshaft Main Bearing

Main Bearing





Temporarily install the 10 crankshaft bearing cap bolts to the outside positions.

Standard Bolt Length: 79.5 mm (3.13 in.)

Step 1:





Uniformly tighten the 20 crankshaft bearing cap bolts in the sequence shown in the illustration.
for inside position - Torque 61 Nm (622 kgf-cm, 45 ft-lbf)
for outside position - Torque 27 Nm (275 kgf-cm, 20 ft-lbf)
If any of the main bearing cap bolts does not meet the specified torque, replace it.

Step 2:





Mark the front of the bearing cap bolts with paint.
Tighten the bearing cap bolts 90° in the order shown in step 1.
Check that the painted marks are now at a 90° angle to the front.
Check that the crankshaft turns smoothly.





Install and uniformly tighten the 10 crankshaft bearing cap bolts and 10 new seal washers in several steps in the sequence shown in the illustration.
Torque 45 Nm (459 kgf-cm, 33 ft-lbf)

Main journal
Diameter
Standard 66.988 to 67.000 mm (2.6373 to 2.6378 in.)
Taper and out-of-round
Maximum 0.02 mm (0.000787 in.)
Crank pin
Diameter
Standard 55.982 to 56.000 mm (2.2040 to 2.2047 in.)
Taper and out-of-round
Maximum 0.02 mm (0.000787 in.)
Oil clearance
No. 1 and No. 5 journals
Standard 0.017 to 0.030 mm (0.000669 to 0.00118 in.)
Maximum 0.050 mm (0.00197 in.)
Other journals
Standard 0.024 to 0.037 mm (0.000945 to 0.00146 in.)
Maximum 0.060 mm (0.00236 in.)