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Home >> Isuzu >> 1994 >> Trooper S, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 3.2L V6 - VINS [V,W] >> Engine Oiling >> Oil Pump >> Inspection

Oil Pump: Inspection

  1. Inspect components for damage. Install gears in oil pump housing. Place straightedge across oil pump housing surface.
  2. Using feeler gauge, measure gear side clearance. Replace components if clearance exceeds specification. See OIL PUMP SPECIFICATIONS  table.
  3. Using feeler gauge, measure side clearance between outside edge of outer gear and oil pump housing. Replace components if clearance exceeds specification. See OIL PUMP SPECIFICATIONS  table.
  4. Assemble gears in oil pump housing. Using feeler gauge, measure clearance between tip of inner gear and tip of outer gear. Replace components if clearance exceeds specification. See OIL PUMP SPECIFICATIONS  table.
OIL PUMP SPECIFICATIONS

Application In. (mm)
Gear Side Clearance
Standard .001-.004 (.03-.10)
Wear Limit .006 (.15)
Outer Gear-To-Oil Pump Housing Clearance
Standard .004-.009 (.10-.24)
Wear Limit .014 (.35)
Gear Tip Clearance
Standard .004-.007 (.10-.18)
Wear Limit .008 (.20)
Fig 1: Exploded View Of Engine Oiling System
G93H01611Courtesy of ISUZU MOTOR CO.