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Home >> Infiniti >> 2013 >> FX37 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Engine Mechanical) >> Unit Disassembly And Assembly >> How To Select Piston And Bearing >> Main Bearing >> When New Cylinder Block And Crankshaft Are Used

When New Cylinder Block And Crankshaft Are Used

WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
  1. "MAIN BEARING SELECTION TABLE" rows correspond to bearing housing grade on rear side of cylinder block.
    Fig 1: Identifying Housing Grade And Bore Grade On Main Bearing
    G09000423Courtesy of NISSAN NORTH AMERICA, INC.
  2. "MAIN BEARING SELECTION TABLE" columns correspond to journal diameter grade on front side of crankshaft.
    Fig 2: Identifying Diameter Grade On Main Bearing
    G09000424Courtesy of NISSAN NORTH AMERICA, INC.
  3. Select main bearing grade at the point where selected row and column meet in "MAIN BEARING SELECTION TABLE".
    CAUTION:
    • Initial clearance for No. 1, 5 journal and No. 2, 3, 4 journal is different. Use two different selection table for each part.
    • No. 1, 5 journal and No. 2, 3, 4 journal have the same signs but different measures. Never confuse.
  4. Apply sign at crossing in above step 3 to "MAIN BEARING GRADE TABLE".
    NOTE:
    • "MAIN BEARING GRADE TABLE" applies to all journals.
    • Service parts are available as a set of both upper and lower.
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