Connecting Rod Bearing (Big End)

1. Install connecting rod bearing to connecting rod and cap.
2. Install connecting rod cap to connecting rod.
   Fig 1: Measuring Connecting Rod Bearing (Big End) Diameter

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Install connecting rod caps.
   1. Apply new engine oil to bolt threads and nut seating surfaces.
   2. Tighten connecting rod cap nuts in two steps:
      1. Step 1 : 13.72 - 15.68 N.m (1.399 - 1.599 kg.m, 10.120 - 11.566 ft-lb) 
      2. Step 2 : 35 - 40 degrees clockwise, or 23 - 28 N.m (2.3 - 2.9 kg-m, 17 - 21 ft-lb) 
4. Measure inner diameter "C" of each bearing.
   Fig 2: Tightening Connecting Rod Cap Nuts

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. Measure outer diameter "Dp" of each crankshaft pin journal.
   Fig 3: Measuring Outer Diameter Of Each Crankshaft Pin Journal

   Courtesy of NISSAN MOTOR CO., U.S.A.
6. Calculate connecting rod bearing clearance.
   1. Connecting rod bearing clearance = C - Dp 
      1. Standard : 0.014 - 0.039 mm (0.0006 - 0.0015 in) 
      2. Limit : 0.1 mm (0.004 in) 
   • If it exceeds the limit, replace bearing.
   • If clearance cannot be adjusted using any standard bearing grade, grind crankshaft journal and use undersized bearing. Refer to , "BEARING CLEARANCE ".
   • If a new bearing, crankshaft or connecting rod is replaced, select connecting rod bearing according to the following table.
   Fig 4: Identifying Crankshaft Pin Journal Grade Number

   Courtesy of NISSAN MOTOR CO., U.S.A.
   NOTE: These numbers are punched in either Arabic or Roman numerals.

Connecting rod bearing grade number: 

Fig 5: Crankshaft Pin Journal Grade Number And Connecting Rod Bearing Grade Color Table

Courtesy of NISSAN MOTOR CO., U.S.A.