Crankshaft Main Bearing Torque and Sequence
INSTALL 12 POINTED HEAD MAIN BEARING CAP BOLTSHINT:
- The main bearing cap bolts are tightened in 2 progressive steps (steps (b) and (d)).
- If any of the main bearing cap bolts is broken or deformed, replace it.
a. Apply a light coat of engine oil on the threads and under the main bearing cap bolts.
b. Install and uniformly tighten the 16 main bearing cap bolts in several passes, in the sequence shown.
Torque: 22 Nm (225 kgf-cm, 16 ft. lbs.)
If any of the main bearing cap bolts does not meet the torque specification, replace the main bearing cap bolt.
c. Mark the front of the main bearing cap bolts with paint.
d. Retighten the main bearing cap bolts by 90° in the numerical order shown.
e. Check that the painted mark is now at a 90° angle to the front.
Torque Sequence:
INSTALL HEXAGON HEAD MAIN BEARING CAP BOLTS
a. Install a new seal washer to the main bearing cap bolt.
b. Install and uniformly tighten the 8 main bearing cap bolts in several passes, in the sequence shown.
Torque: 27 Nm (275 kgf-cm, 20 ft. lbs.)
c. Check that the crankshaft turns smoothly.