Crankshaft Main Bearing

Crankshaft Main Bearing Cap Bolts

Inspection

Using a vernier caliper, measure the length of the crankshaft bearing cap set bolt from the seat to end.





Standard bolt length 84.3 to 85.7 mm (3.32 to 3.37 in.)

Maximum bolt length 86.7 mm (3.41 in.)

Using a vernier caliper, measure the diameter of the threaded portion of the bolt at its thinnest point. Use a straightedge to determine the thinnest point of the threaded portion of the bolt.

Measurement point 55.0 mm (2.17 in.)

Standard diameter 9.77 to 9.96 mm (0.385 to 0.392 in.)

Minimum diameter 9.1 mm (0.358 in.)

Tightening Sequence





First pass 40 Nm (408 kgf-cm, 30 ft-lbf)
Final pass Tighten 90°

Standard Main Bearing Center Wall Thickness (Reference)
Mark 1 1.994 to 1.997 mm (0.07850 to 0.07862 in.)
Mark 2 1.998 to 2.000 mm (0.07866 to 0.07874 in.)
Mark 3 2.001 to 2.003 mm (0.07878 to 0.07886 in.)
Mark 4 2.004 to 2.006 mm (0.07890 to 0.07898 in.)

Maximum Circle Runout 0.03 mm (0.00118 in.)

Oil Clearance
Standard 0.016 to 0.039 mm (0.000630 to 0.00154 in.)
Maximum 0.050 mm (0.00197 in.)

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 according to the chart below. 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")









Bearing Chart





Standard Cylinder Block Journal Bore Diameter





Standard Crankshaft Journal Diameter





Standard Bearing Center Wall Thickness