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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Lubrication System - 3.5 L) >> Oil Pump >> Disassembly and Assembly >> Inspection After Disassembly >> Regulator Valve

Regulator Valve

WARNING: This page is about a different variant/trim than selected.
  1. Visually inspect components for wear and damage.
  2. Check oil pressure regulator valve sliding surface and valve spring.
  3. Coat regulator valve with engine oil. Check that it falls smoothly into the valve hole by its own weight.

    If damaged, replace regulator valve set or oil pump body. 

    Fig 1: Inspecting Regulator Valve For Wear And Damage
    G02883964Courtesy of NISSAN MOTOR CO., U.S.A.
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