Inner Diameter Of Main Bearing Housing

Install the main bearing caps with the main bearings removed and tighten the bolts to the specified torque. Refer to "DISASSEMBLY AND ASSEMBLY ".
Using a bore gauge, measure the inner diameter of the main bearing housing.
Standard : 58.944 - 58.968 mm (2.3206 - 2.3216 in)
If out of the standard, replace the cylinder block and lower cylinder block assembly.
NOTE: These components cannot be replaced as a single unit because they were processed together.

Fig 1: Checking Inner Diameter Of Main Bearing Housing
Courtesy of NISSAN MOTOR CO., U.S.A.