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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Mechanical - 3.6L (Ly7) (Repair Procedures -- 3 Of 5)) >> Off-Vehicle Repair Instructions - Part 2 >> Oil Pump Assemble

Oil Pump Assemble

WARNING: This page is about a different variant/trim than selected.
IMPORTANT:
  • There are no serviceable components within the oil pump. Disassemble the pump only to diagnose an oiling concern. A disassembled oil pump must be replaced. DO NOT reuse a disassembled oil pump or a serviceable oil pump with a primary camshaft drive chain lower guide that needs to be replaced.
  • The primary camshaft drive chain lower guide is not a serviceable component. If the primary camshaft drive chain lower guide must be replaced, the oil pump must be replaced.
  1. The dimpled surface must be face-up in the pump body.
    Fig 1: Identifying Dimpled Surface
    GM902928Courtesy of GENERAL MOTORS CORP.
    2. Fig 2: Removing & Installing Inner & Outer Oil Pump Drive Gear
    GM902922Courtesy of GENERAL MOTORS CORP.
  2. Install the inner and the outer rotors in the pump cover in the same orientation as removed.
  3. The outer rotor has a dimple to indicate the outer surface.
    4. Fig 3: Removing & Installing Oil Pump Cover
    GM902921Courtesy of GENERAL MOTORS CORP.
  4. Assemble the housing and cover.
    5. NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. Install the bolts.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

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