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Oil Pump: Inspection

  1. Disassemble oil pump. See Fig 1. Inspect components for damage. Using straightedge and feeler gauge, measure side clearance between inner rotor and pump body. Check radial clearance between outer rotor and case using feeler gauge.
  2. Measure free length and tension of oil relief spring. Replace components or entire assembly if not within specification. See OIL PUMP SPECIFICATIONS  table.
    Fig 1: Exploded View Of Oil Pump
    G00010494Courtesy of SUZUKI OF AMERICA CORP.
OIL PUMP SPECIFICATIONS

Application In. (mm)
Rotor
Radial Clearance .0059 (.15)
Side Clearance .0043 (.11)
Relief Valve
Relief Spring Free Length 2.5 (63.5)
Spring Preload 62.2 Lbs. @ 2.05" (8.6 Kg. @ 52 mm)