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Home >> Buick >> 2001 >> Century Limited >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Engine Mechanical - 3.1L V6 (VINJ) >> Engine Oiling >> Oil Pump >> Removal & Disassembly

Removal & Disassembly

  1. Remove oil pan. See OIL PAN  under REMOVAL & INSTALLATION. Remove oil pump bolt, oil pump and extension shaft from rear main bearing cap.
  2. To disassemble, remove pump cover. DO NOT remove pick-up tube from cover unless loose or broken. If pick-up tube is loose, bent or has been removed, replace pick-up tube and pump cover.
    3. WARNING: On some models, pressure regulator valve spring is under pressure. To prevent personal injury, use care when removing cotter pin.
  3. Remove gears from pump body. Remove cotter pin securing spring and pressure regulator valve. Remove valve and spring.
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