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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1208 (Transfer Case) >> Transfer Assembly >> Disassembly and Assembly >> Inspection After Disassembly >> Main Oil Pump

Main Oil Pump

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check the inner and outer circumference, tooth face, and sideface of the inner and outer gears for damage or abnormal wear.
  2. Measure the side clearance between the main oil pump housing edge and the inner and outer gears.
  3. Make sure the side clearance is within specification. If the measurement is out of specification, replace the inner and outer gears with new ones as a set. Refer to "MAIN OIL PUMP ".
    1. Specification: 0.015 - 0.035 mm (0.0006 - 0.0014 in) 
    Fig 1: Measuring Side Clearance Between Main Oil Pump Housing, Inner And Outer Gears
    G02383275Courtesy of NISSAN MOTOR CO., U.S.A.
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