Crankshaft Main Bearing
CRANKSHAFTThe main bearing cap bolts are tightened in 2 progressive steps.
Step 1
Install and uniformly tighten the 10 main bearing cap bolts in the sequence shown in the illustration.
Torque 20 Nm (204 kgf-cm, 15 ft-lbf)
Retighten the 10 main bearing cap bolts in the sequence shown in the illustration.
Torque 40 Nm (408 kgf-cm, 30 ft-lbf)
Step 2
Mark the front of the bearing cap bolts with paint.
Retighten the bearing cap bolts 90° in the numerical order shown in the illustration.
Check that the paint mark is now at a 90° angle to the front.
Check that the crankshaft turns smoothly.
MAIN BEARING CLEARANCE STANDARD AND LIMIT
MAIN BEARING SIZE CODES
There are 4 sizes of standard bearings, marked "1", "2", "3" and "4" accordingly.
EXAMPLE: Cylinder block "3" + Crankshaft "5" = Total number 8 (Use bearing "3")
Standard Cylinder Block Journal Bore Diameter:
Standard Crankshaft Journal Diameter:
Standard Bearing Center Wall Thickness:
