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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 814 (Transfer Case - ATX14A) >> Repair For Component Parts >> Center Case >> Inspection >> Main Oil Pump

Main Oil Pump

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. Check inner and outer circumference, tooth face, and side-face of inner and outer gears for damage or abnormal wear.
  2. Measure side clearance between oil pump housing edge and inner gear/outer gear.
  3. Make sure side clearance is within specification. If the measurement is out of specification, replace inner and outer gears with new ones as a set.

    Specification: 0.015 - 0.035 mm (0.0006 - 0.0014 in) For inner gear and outer gear, refer to  SERVICE DATA AND SPECIFICATION (SDS)  . 

    Fig 1: Measuring Side Clearance Between Oil Pump Housing Edge And Inner Gear/Outer Gear
    G02033890Courtesy of NISSAN MOTOR CO., U.S.A.
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