Connecting Rod Bearing (Big End)

WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

Install connecting rod bearing to connecting rod and cap.
Install connecting rod cap to connecting rod.
Tighten bolts to the specified torque.
Measure inner diameter "C" of each bearing.

Fig 1: Measuring Inner Diameter "C" Of Bearing
Courtesy of NISSAN MOTOR CO., U.S.A.
Measure outer diameter "Dp" of each crankshaft pin journal.
Calculate connecting rod bearing clearance.
Connecting rod bearing clearance = C - Dp

Standard: 0.014 - 0.039 mm (0.0006 - 0.0015 in)

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 .

Fig 2: Measuring Outer Diameter "Dp" Of Crankshaft Pin Journal
Courtesy of NISSAN MOTOR CO., U.S.A.
- If a new bearing, crankshaft or connecting rod is replaced, select connecting rod bearing according to the following table.
  
  Fig 3: Identifying Crankshaft Pin Journal Grade Number
  Courtesy of NISSAN MOTOR CO., U.S.A.

Connecting Rod Bearing Grade Number:

These numbers are punched in either Arabic or Roman numerals.

Fig 4: Connecting Rod Bearing Grade Number

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

Method B (Using Plastigage)

CAUTION:

Do not turn crankshaft or connecting rod while Plastigage is being inserted.
If incorrect bearing clearance exists, use a thicker or undersized main bearing to ensure specified clearance.

Fig 5: Measuring Bearing Clearance Using Plastigage
Courtesy of NISSAN MOTOR CO., U.S.A.