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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 1.4L (LUV) >> Repair Instructions - On Vehicle >> Oil Pump Replacement >> Installation Procedure

Installation Procedure

  1. Install the oil pan components in the following order:
    Fig 1: Oil Pump Components
    GM2191079Courtesy of GENERAL MOTORS COMPANY
    NOTE: Oil pump slide spring pin and oil pump slide spring, as well as 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 slide (6).
      NOTE: The bore (8) in the oil pump slide must fit smooth-running and without clearance to the oil pump slide pivot pin (7).
    2. Install the inner oil pump vane ring (5).
    3. Install the oil pump vane rotor (4).
      NOTE: Mind the installation position of the oil pump vane rotor (4). The mark (9) must point to direction of the oil pump cover.
    4. Install the 7 oil pump vanes (2).
      NOTE: Mind the localized flattings (3) on the oil pump vanes (2) caused by the oil pump vane rings. The localized flattings must point to the oil pump vane rotor.
    5. Install the outer oil pump vane ring (1).
  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.
    Fig 2: Oil Pump Slide Seal Springs And Grooves
    GM2191049Courtesy of GENERAL MOTORS COMPANY
  3. Protect the engine front cover edge (5) with a suitable piece of plastics.
    Fig 3: Oil Pump Slide Spring, Pin, Chambers And Front Cover Edge
    GM2191052Courtesy of GENERAL MOTORS COMPANY
  4. Install the oil pump slide spring pin (1) in compound 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.
    NOTE: The length of the removed oil pump slide spring (2) should be 76.5 mm (3.0118 in) for suction engines and 61 mm (2.4016 in) for turbo engines.
  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 practicability.
  7. Measure the oil pump axial and radial clearances and compare with the specified values. Refer to Engine Front Cover and Oil Pump Cleaning and Inspection 
  8. Install the oil pump cover (2) and the 8 oil pump cover bolts (1).
    Fig 4: Engine Oil Pump Cover And Bolts
    GM2191037Courtesy of GENERAL MOTORS COMPANY
  9. Tighten the oil pump cover bolts in a sequence as shown to 8 N.m (71 lb in).
    Fig 5: Oil Pump Cover Bolts Tightening Sequence
    GM2191056Courtesy of GENERAL MOTORS COMPANY
    CAUTION: Refer to Fastener Caution
  10. 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.
    Fig 6: Crankshaft Balancer
    GM2191058Courtesy of GENERAL MOTORS COMPANY
  11. Remove the timing chain and replace the engine front cover gasket. Refer to Camshaft Timing Chain Replacement .
  12. Install the timing chain. Refer to Camshaft Timing Chain Replacement .
  13. Install the engine front cover. Refer to Engine Front Cover with Oil Pump Replacement .
  14. Measure the oil pressure and compare with the specified values. Refer to Oil Pressure Diagnosis and Testing .
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