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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 809 (Engine Mechanical) >> Cylinder Block >> Inspection >> Bearing Clearance >> Connecting Rod Bearing (Big end)

Connecting Rod Bearing (Big end)

WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install connecting rod bearing to connecting rod and cap.
  2. Install connecting rod cap to connecting rod.

    Tighten bolts to the specified torque. 

  3. Measure inner diameter "C" of connecting rod.
    Fig 1: Measuring Inner Diameter Of Connecting Rod
    G02032344Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Measure outer diameter "Dp" of each crankshaft pin journal.
  5. Calculate connecting rod bearing clearance.

    Connecting rod bearing clearance = C - Dp 

    Standard: 0.034 - 0.059 mm (0.0013 - 0.0023 in) 

    Limit: 0.070 mm (0.0028 in) 

  6. If it exceeds the limit, replace bearing.
  7. If clearance cannot be adjusted within the standard of any bearing, grind crankshaft journal and use undersized bearing. Refer to BEARING CLEARANCE .
    Fig 2: Measuring Outer Diameter Of Crankshaft Pin Journal
    G02032345Courtesy of NISSAN MOTOR CO., U.S.A.
  8. If crankshaft is replaced with a new one, select connecting rod bearing according to the following table.

    Connecting rod bearing grade number (Identification color): 

    These numbers are punched in either Arabic or Roman numerals.

    Fig 3: Connecting Rod Bearing Selection Chart
    G02032346Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 4: Identifying Identification Code
    G02032347Courtesy of NISSAN MOTOR CO., U.S.A.