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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 910 (Transfer Case) >> Unit Disassembly And Assembly >> Transfer Assembly >> Disassembly and Assembly >> Inspection After Disassembly >> Main Oil Pump

Main Oil Pump

WARNING: This page is about a different car, the 2013 Nissan Armada. 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 side-face 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 "DISASSEMBLY AND ASSEMBLY ".

    Specification: 0.015 - 0.035 mm (0.0006 - 0.0014 in) 

    Fig 1: Measuring Side Clearance Between Main Oil Pump Housing Edge And Inner And Outer Gears
    G04901699Courtesy of NISSAN NORTH AMERICA, INC.
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