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Oil Pump

  1. With oil pan removed, oil pump can be removed. To disassemble, remove cotter pin retaining relief valve, and lift out cup, spring, spring guide, and piston.
  2. Clean all parts and inspect ball seat, and inner and outer rotors for wear.
  3. Measure tip clearance in both positions, shown in illustration. Clearance in "POSITION 1" must be 0.002 - 0.012" and 0.001 - 0.006" in "POSITION 2". If either tolerance is exceeded, rotors must be changed.
  4. To reassemble, fit piston, spring guide, spring, and cup in position. Install retaining cotter pin, strainer flange seal, strainer, and lock tab. Tighten all bolts.
NOTE: Oil pump cover and rotor can be removed without removing engine.
Fig 1: Measuring Tip Clearance
G09330570Courtesy of AMERICAN MOTORS/RENAULT CORP.
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