Crankshaft Main Bearing

Main Bearing Cap Bolts:
Torque:
1st Pass 61 Nm (45 ft. lbs.)
2nd Pass + 90°

Main Bearing Clearance:
Standard:
No. 1:
Standard 0.020 - 0.038 mm (0.0008 - 0.0015 inch)
U/S 0.25 0.019 - 0.059 mm (0.0007 - 0.0023 inch)
Others:
STD 0.024 - 0.042 mm (0.0009 - 0.0017 inch)
U/S 0.250.023 - 0.063 mm (0.0009 - 0.0025 inch)
Maximum clearance 0.08 mm (0.0031 inch)
If replacing the cylinder block subassembly, the bearing standard clearance will be:
No. 1 0.010 - 0.049 mm (0.0004 - 0.0020 inch)
Others 0.014 - 0.053 mm (0.0006 - 0.0021 inch)








Bearing Size Codes

NOTE: If using a standard bearing, replace with one having the same number. If the number of the bearing cannot be determined, select the correct bearing by adding together the numbers imprinted on the cylinder block and crankshaft, then selecting the bearing with the same number as the total. There are 5 sizes of standard bearings, marked "1", "2", "3", "4", and "5" accordingly.

Reference:
Standard sized bearing center wall thickness:
No. 1:
Mark "1" 1.991 - 1.994 mm (0.0784 - 0.0785 inch)
Mark "2" 1.994 - 1.997 mm (0.0785 - 0.0786 inch)
Mark "3" 1.997 - 2.000 mm (0.0786 - 0.0787 inch)
Mark "4" 2.000 - 2.003 mm (0.0787 - 0.0789 inch)
Mark "5" 2.003 - 2.006 mm (0.0789 - 0.0790 inch)
Others:
Mark "1" 1.989 - 1.992 mm (0.0783 - 0.0784 inch)
Mark "2" 1.992 - 1.995 mm (0.0784 - 0.0785 inch)
Mark "3" 1.995 - 1.998 mm (0.0785 - 0.0787 inch)
Mark "4" 1.998 - 2.001 mm (0.0787 - 0.0788 inch)
Mark "5" 2.001 - 2.004 mm (0.0788 - 0.0789 inch)
Cylinder block Main journal bore diameter:
Mark "1" 68.010 - 68.016 mm (2.6776 - 2.6778 inch)
Mark "2" 68.016 - 68.022 mm (2.6778 - 2.6780 inch)
Mark "3" 68.022 - 68.028 mm (2.6780 - 2.6783 inch)
Crankshaft main journal diameter:
Mark "O" 63.996 - 64.000 mm (2.5195 - 2.5197 inch)
Mark "1" 63.990 - 63.996 mm (2.5193 - 2.5195 inch)
Mark "2" 63.985 - 63.990 mm (2.5191 - 2.5193 inch)