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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 >> Cylinder Head Replacement >> Installation Procedure

Installation Procedure

  1. Install the cylinder head assembly parts:
  2. Cut the 2 elastomer sealing lips (1) from engine front cover gasket.
    Fig 1: Elastomer Sealing Strips
    GM2191384Courtesy of GENERAL MOTORS COMPANY
  3. Bend down the engine front cover gasket at the predetermined breaking points (arrows).
  4. Clean sealing surfaces of engine front cover and engine block from grease and old gasket material.
  5. Inspect cylinder block and cylinder head for flatness. Refer to Cylinder Head Cleaning and Inspection  and Engine Block Cleaning and Inspection .
  6. Apply sealing compound to the shown areas (1). Refer to Adhesives, Fluids, Lubricants and Sealers .
    Fig 2: Sealing Compound Application Area
    GM2191385Courtesy of GENERAL MOTORS COMPANY
    NOTE: The thickness of the sealing bead should be 2 mm (0.0787 in).
  7. Install the cylinder head gasket to engine block.
    NOTE: Mind the marking on the cylinder head gasket for top side.
  8. Install 2 engine front cover bolts (1) in order to guide the NEW upper engine front cover gasket.
    Fig 3: Engine Front Cover Bolts And Sealing Compound Application Areas
    GM2191409Courtesy of GENERAL MOTORS COMPANY
  9. Install the NEW upper engine front cover gasket.
  10. Apply sealing compound to the shown areas (2). The thickness of the sealing bead should be 2 mm (0.0787 in).
  11. Install the cylinder head (3).
    Fig 4: Timing Chain Tensioner, Guide Pin And Cylinder Head
    GM2191411Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • A second technician is required. Guide the timing chain guide pin (2) to the timing chain guide and the timing chain tensioner (1) with the installed fixing pin through the timing chain tensioner plug bore in engine front cover.
    • Check the proper seat of the 2 cylinder head guide sleeves.
    • To install the 2 cylinder head bolts at the transmission side, remove and reinstall the EN-953-A  fixing tool.
  12. Loosely install 12 NEW cylinder head bolts.
  13. Adjust the cylinder head to the engine front cover. Use a rubber mallet.
    Fig 5: Engine Front Cover Bolts
    GM2191422Courtesy of GENERAL MOTORS COMPANY
  14. Locate the engine front cover to cylinder head by installing 3 bolts (1).
  15. Tighten the 3 bolts (1) to 8 N.m (71 lb in).
  16. Tighten the cylinder head bolts in the sequence as shown and in the following order:
    Fig 6: Cylinder Head Bolts Tightening Sequence
    GM2190738Courtesy of GENERAL MOTORS COMPANY
    CAUTION: Refer to Torque-to-Yield Fastener Caution .
    1. Tighten the cylinder head bolts a first pass to 35 N.m (26 lb ft).
    2. Tighten the cylinder head bolts a final pass to an additional 180 degrees, using EN-470-B  wrench.
  17. Loosen the 3 bolts from engine front cover.
  18. Install the 5 remaining bolts to engine front cover and water pump.
    Fig 7: Engine Front Cover Bolts And Water Pump Bolts
    GM2191417Courtesy of GENERAL MOTORS COMPANY
  19. Tighten the 5 engine front cover bolts (1, 2) to 8 N.m (71 lb in).
  20. Tighten the 3 water pump bolts (3) to 8 N.m (71 lb in).
  21. Remove the engine mount bracket. Refer to Engine Mount Bracket Replacement - Right Side .
  22. Install the water pump pulley. Refer to Water Pump Pulley Installation .
  23. Install the drive belt. Refer to Drive Belt Replacement .
  24. Install engine mount bracket. Refer to Engine Mount Bracket Replacement - Right Side .
  25. Install the engine mount. Refer to Engine Mount Replacement - Right Side .
  26. Install the 2 camshaft sprockets (2) along with the timing chain (1).
    Fig 8: Timing Chain And Camshaft Sprockets
    GM2191431Courtesy of GENERAL MOTORS COMPANY
  27. Install the 2 camshaft position exciter wheels (1) and the 2 NEW camshaft sprocket bolts (2).
    Fig 9: Camshaft Position Exciter Wheels And Camshaft Sprocket Bolts
    GM2191382Courtesy of GENERAL MOTORS COMPANY
    NOTE: Camshaft position exciter wheels should stay rotatable.
  28. Adjust engine to TDC:
    1. Install the EN-49977-200  fixing tool (2) and adjust the gearing of the fixing tool so it engages with the intake camshaft sprocket gearing (1).
      Fig 10: Intake Camshaft Sprocket Gearing And Special Tool
      GM2190710Courtesy of GENERAL MOTORS COMPANY
      NOTE: Push the fixing tool in the direction of the arrow to ensure it engages without clearance.
    2. Tighten the 2 fastening bolts (1) of the EN-49977-200  fixing tool while pushing the fixing tool in direction of the arrow.
      Fig 11: Adjuster Bolt And Fastening Bolts
      GM2190712Courtesy of GENERAL MOTORS COMPANY
    3. Tighten the adjuster bolt (2).
    4. Install the EN-49977-100  fixation (2) to find and hold the camshaft position exciter wheels in the correct position.
      Fig 12: Fastening Bolts And Fixation Tool
      GM2190709Courtesy of GENERAL MOTORS COMPANY
      NOTE: A wrong installation position is possible. Make sure that the fixation tool is installed without clearance to the cylinder head in areas (3) and (5).
    5. Tighten the 2 fastening bolts (6) of the EN-49977-100  fixation.
    6. Tighten the intake camshaft sprocket bolt (4) while holding the hexagon (1) of the intake camshaft to 50 N.m (37 lb ft).
    7. Tighten the intake camshaft sprocket bolt (4) while holding the hexagon (1) of the intake camshaft an additional 60 degrees.
      CAUTION: Refer to Torque-to-Yield Fastener Caution .
    8. Tighten the exhaust camshaft sprocket bolt while holding the hexagon of the exhaust camshaft to 50 N.m (37 lb ft).
    9. Tighten the exhaust camshaft sprocket bolt while holding the hexagon of the exhaust camshaft an additional 60 degrees.
      CAUTION: Refer to Torque-to-Yield Fastener Caution .
    10. Remove the EN-49977-100  fixation and the EN-49977-200  fixing tool.
    11. Install the upper timing chain guide (2).
      Fig 13: Upper Timing Chain Guide And Bolts
      GM2190676Courtesy of GENERAL MOTORS COMPANY
    12. Install the 2 upper timing chain guide bolts (1) and tighten to 8 N.m (71 lb in).
    13. Remove the EN-953-A  fixing tool.
    14. Remove the EN-952  fixing pin.
    15. Remove the EN-955-10  fixing pin.
    16. Rotate the crankshaft for 720° and check the engine timing again.
    17. Check the engine timing again:
      1. Install the EN-952  fixing pin.
      2. Install the EN-953-A  fixing tool.
      3. Install the EN-49977-100  fixation.
      4. Repeat the adjustment procedure if necessary.
  29. Install the crankshaft bearing cap tie plate hole plug and seal ring and tighten to 40 N.m (30 lb ft).
  30. Install the timing chain tensioner plug and tighten to 35 N.m (26 lb ft).
  31. Install the 2 camshaft position actuator solenoid valves. Refer to Camshaft Position Actuator Solenoid Valve Installation .
  32. Install the camshaft cover. Refer to Camshaft Cover Replacement .
  33. Install the ignition coil and connect the ignition coil wiring harness plug. Refer to Ignition Coil Replacement .
  34. Connect radiator outlet hose (3) to engine coolant thermostat housing (1). Clip quick connector (2).
    Fig 14: Engine Coolant Thermostat Housing, Radiator Outlet House And Quick Connector Clamp
    GM2191392Courtesy of GENERAL MOTORS COMPANY
  35. Install the ground cable (1) and the ground cable bolt (2) and tighten to 20 N.m (15 lb ft).
    Fig 15: Ground Cable And Bolt
    GM2371576Courtesy of GENERAL MOTORS COMPANY
  36. Install the radiator inlet hose (4) and the radiator inlet hose clamp to the water outlet.
    Fig 16: Oil Cooler Inlet Hose, Engine Coolant Air Bleed Hose, Temperature Sensor Wiring Harness Plug And Radiator Inlet Hose
    GM2371575Courtesy of GENERAL MOTORS COMPANY
  37. Install the oil cooler inlet hose (1) and the oil cooler inlet hose clamp to the water outlet.
  38. Connect the engine coolant air bleed hose (2) to the water outlet.
  39. Connect the engine coolant temperature sensor wiring harness plug (3).
  40. Install the heater inlet hose to the water outlet. Refer to Heater Inlet Hose Replacement (1.4L LUV) .
  41. Install the engine control module wiring harness to the camshaft cover:
    Fig 17: Wiring Harnesses And Plugs
    GM2191350Courtesy of GENERAL MOTORS COMPANY
    • Connect the engine coolant temperature sensor wiring harness plug (3).
    • Connect the exhaust camshaft position actuator solenoid valve wiring harness plug (5).
    • Connect the exhaust camshaft position sensor wiring harness plug (4).
    • Connect the intake camshaft position actuator solenoid valve wiring harness plug (6).
    • Connect the intake camshaft position sensor wiring harness plug (7).
  42. Install the turbocharger. Refer to Turbocharger Replacement .
  43. Install the intake manifold. Refer to Intake Manifold Replacement .
  44. Install the air cleaner assembly in compound with the air cleaner outlet duct. Refer to Air Cleaner Assembly Replacement and Air Cleaner Outlet Duct Replacement .
  45. Install the engine sight shield.
  46. Connect battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  47. Fill coolant fluid. Refer to Cooling System Draining and Filling (GE-47716 Fill) and Cooling System Draining and Filling (Static Fill) .
  48. Check and correct engine oil.
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