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Assembly Procedure

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    Fig 1: Oil Pump Components Inspection
    GM893334Courtesy of GENERAL MOTORS CORP.
  1. Inspect the oil pump for:
    • Worn, scored or gouged pump slide (214)
    • Cracks, wear or damage to the rotor (210) or the vanes (211)
    • Cuts or damage to the seals (212, 213, 220, 221)
    • Broken priming springs (222, 223)
    • Damaged oil pump drive shaft bearing (208) - the bearing is not serviced separately from the rotor.
    2. Fig 2: Inspecting Areas On Oil Pump Body
    GM893336Courtesy of GENERAL MOTORS CORP.
  2. Inspect the oil pump body (228) and the base (229) for:
    • Porosity
    • A worn, scored or damaged pump pocket
    • Interconnected oil passages
    • Damaged machined surfaces
  3. Inspect the oil pump cover (201) for cracks, wear or gouges from the pump vanes.
    4. Fig 3: Identifying Oil Pump Components
    GM893337Courtesy of GENERAL MOTORS CORP.
  4. Install the pump pivot pin (228).
  5. Install the pump body (227) onto the pump base (229).
  6. Install the pivot slide pin (215).
  7. Insert the pump slide seal (221) and the pump slide seal (220) into the pump slide (214).
  8. Insert the pump slide (214) and the slide pivot pin (215) into the pump body (227).
  9. Install the outer and inner priming springs (222, 223) as an assembly into the pump body (227).
  10. Install the first vane ring into the pump body (227).
  11. Insert the pump slide O-ring seal (213) and pump slide seal ring (212) into the pump slide (214).
  12. Insert the rotor (210) into the pump body (227).
  13. Install the pump vanes (211) into the rotor (210). The pump vane must be flush with the top of the rotor.
  14. Install the second vane ring (209) onto the top of the rotor (210).
    15. Fig 4: Locating Oil Pump Assembly
    GM893338Courtesy of GENERAL MOTORS CORP.
  15. Install the oil pump assembly (200) onto the control valve assembly (300).
    16. NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  16. Install the two pump body to case bolts (230) and the nine pump cover to case cover bolts (231).

    Tighten:  Tighten the bolts to 12 N.m (106 lb in).

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