Lower Cylinder Block Bolt Outer Diameter

Measure the outer diameters (c), (d) at two positions as shown in the figure.

Fig 1: Identifying Lower Cylinder Block Bolt Outer Diameter
Courtesy of NISSAN NORTH AMERICA, INC.
If reduction appears in (a) range, regard it (c).
Limit [(d) - (c)]: 0.11 mm (0.0043 in)
If it exceeds the limit (large difference in dimensions), replace lower cylinder block bolt with new one.