Crankshaft Main Bearing
CRANKSHAFTThe crankshaft bearing cap bolts are tightened in 3 progressive steps.
Step 1:
Using several steps, uniformly install and tighten the 10 bearing cap bolts in the sequence shown in the illustration.
Torque 20 Nm (204 kgf-cm, 15 ft-lbf)
Step 2:
Tighten the 10 bearing cap bolts again in the sequence shown in the illustration.
Torque 40 Nm (408 kgf-cm, 30 ft-lbf)
If a crankshaft bearing cap bolt does not meet the specified torque, replace it.
Step 3:
Mark the front of the bearing cap bolts with paint.
Tighten the 10 bearing cap bolts 90° in the same sequence.
Check that the paint marks are now at a 90° angle to the front.
Check that the crankshaft turns smoothly
MAIN BEARING CLEARANCE, STANDARD & LIMIT
MAIN BEARING SIZE CODES
If replacing a bearing, select a new one with the same number. If the number of the bearing cannot be determined, calculate the correct bearing number by adding together the numbers imprinted on the cylinder block and crankshaft. Then select a new bearing with the calculated number. There are 4 sizes of standard bearings, marked "1", "2", "3" and "4" accordingly.
EXAMPLE: Cylinder block (A) "3" + Crankshaft (B) "4" = Total "7" Select the bearing marked "3".
Bearing Chart:
Standard Cylinder Block Journal Inside Diameter (A):
Standard Crankshaft Main Journal Diameter (B):
Standard Bearing Center Wall Thickness:
