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Installation Procedure

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Oil Pump Components
    GM2191079Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Oil pump slide spring pin, oil pump slide spring and slide seal and slide seal spring can be ordered as single parts. All other oil pump components can only be ordered as a replacement kit.

  1. Install the oil pump components in the following order:
      NOTE:

      The bore (8) in the oil pump slide must fit smooth-running and without clearance to the oil pump slide pivot pin (7).

    1. Install the oil pump slide (6).
    2. Install the inner oil pump vane ring (5).
      3. NOTE:

      Ensure the mark (9) of the oil pump vane rotor (4) points to the oil pump cover.

    3. Install the oil pump vane rotor (4).
      4. NOTE:

      Ensure the flats (3) on the oil pump vanes (2) point to the oil pump vane rotor.

    4. Install the 7 oil pump vanes (2).
    5. Install the outer oil pump vane ring (1).
    2. Fig 2: Oil Pump Slide Seal Springs And Grooves
    GM2191049Courtesy of GENERAL MOTORS COMPANY
  2. Install the 2 oil pump slide seals and the 2 oil pump slide seal springs (2) in the position as shown to the 2 grooves (1) of the oil pump slide.
    3. Fig 3: Oil Pump Slide Spring, Pin, Chambers And Front Cover Edge
    GM2191052Courtesy of GENERAL MOTORS COMPANY
  3. Protect the engine front cover edge (5) with a suitable piece of plastic.
    4. NOTE:

    The length of the removed oil pump slide spring (2) should be 76.5 mm (3.0118 in) for naturally aspirated engines and 61 mm (2.4016 in) for turbo engines.

  4. Install the oil pump slide spring pin (1) in conjunction with the oil pump slide spring (4). Use a screwdriver to compress the oil pump slide spring. The flat side of oil pump slide spring pin must face upwards.
  5. Lubricate the oil pump vanes, the oil pump vane rotor, the oil pump slide spring and the chambers (3) with engine oil.
  6. Inspect the oil pump slide spring mechanism for proper function.
    7. Fig 4: Engine Oil Pump Cover And Bolts
    GM2191037Courtesy of GENERAL MOTORS COMPANY
  7. Install the oil pump cover (2) and the 8 oil pump cover bolts (1).
    8. Fig 5: Oil Pump Cover Bolts Tightening Sequence
    GM2191056Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution

  8. Tighten the oil pump cover bolts in a sequence as shown to 8 N.m (71 lb in).
    9. Fig 6: Crankshaft Balancer
    GM2191058Courtesy of GENERAL MOTORS COMPANY
  9. Install the crankshaft balancer (1) and rotate in shown direction (2) in order to inspect the function of the oil pump mechanism. Crankshaft balancer should rotate easily.
  10. Install the engine front cover. Refer to Engine Front Cover with Oil Pump Replacement .
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