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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Mechanical - 1.8L (Lay)) >> Repair Instructions - On Vehicle >> Intake Camshaft and Valve Lifter Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the engine assembly with transaxle. Refer to Engine Replacement .
  2. Install the engine stand.
  3. Remove the intake manifold.
  4. Remove the fuel tube sub-assembly.
  5. Remove the fuel delivery pipe sub-assembly.
  6. Remove the fuel injector assembly.
  7. Remove the ignition coil assembly.
  8. Remove the oil level dipstick sub-assembly. Refer to Oil Level Indicator and Tube Replacement 
  9. Remove the No. 1 exhaust manifold heat insulator.
  10. Remove the manifold stay.
  11. Remove the exhaust manifold.
  12. Remove the ventilation hose.
  13. Remove the No. 3 water by-pass hose.
  14. Remove the No. 1 water by-pass pipe.
  15. Remove the water by-pass hose.
  16. Remove the inlet water hose.
  17. Remove the inlet water.
  18. Remove the thermostat.
  19. Remove the radio setting condenser.
  20. Remove the cylinder head cover sub-assembly.
  21. Set the No. 1 cylinder to TDC/compression.
  22. Remove the crankshaft pulley.
  23. Remove the No. 1 chain tensioner assembly.
  24. Remove the timing chain cover sub-assembly.
  25. Remove the timing chain cover oil seal.
  26. Remove chain tensioner slipper.
  27. Remove the No. 1 chain vibration damper.
  28. Remove chain sub-assembly.
  29. Remove the No. 2 chain vibration damper.
    30. Fig 1: Identifying Camshaft Timing Gear Assembly
    GM2016721Courtesy of GENERAL MOTORS CORP.
  30. Inspect the camshaft timing gear assembly.
  31. Check the lock of the camshaft timing gear.
    32. IMPORTANT: Be sure to cover the oil hole completely because air leaks due to insufficient sealing will prevent the lock pin from being released.
  32. After cleaning and degreasing the VVT oil hole on the intake side of the No. 1 camshaft bearing cap, completely seal the oil hole with adhesive tape or equivalent as shown in the illustration to prevent air from leaking.
  33. Prick a hole in the tape covering the oil hole as shown.
    34. Fig 2: Checking For Air Leaks
    GM2016722Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • If air leaks out, reattach the adhesive tape.
    • Cover the oil hole with a shop rag or piece of cloth when applying air pressure to prevent oil from spraying.
  34. Apply approximately 150 kPa (22 psi) of air pressure to the hole pricked in procedure A to release the lock pin.
    35. IMPORTANT: Depending on the air pressure applied, the camshaft timing gear assembly may turn in the advanced direction without assistance by hand.
  35. Forcibly turn the camshaft timing gear assembly in the advanced direction (counterclockwise).
    36. Fig 3: Checking Camshaft Timing Gear Assembly For Smooth Turning Ability
    GM2016724Courtesy of GENERAL MOTORS CORP.
  36. Turn the camshaft timing gear assembly within its movable range (26.5-28.5°) 2 or 3 times without turning it to the most retarded position. Make sure that the camshaft timing gear assembly turns smoothly.
  37. Remove the adhesive tape from the No. 1 camshaft bearing cap.
  38. Inspect the camshaft timing exhaust gear assembly.
  39. Check the lock of the camshaft timing exhaust gear.
    40. Fig 4: View Of Sealing Oil Hole With Tape
    GM2016726Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Be sure to cover the oil hole completely because air leaks due to insufficient sealing will prevent the lock pin from being released.
  40. After cleaning and degreasing the VVT oil hole on the exhaust side of the No. 1 camshaft bearing cap, completely seal the oil hole with adhesive tape or equivalent as shown in the illustration to prevent air from leaking.
  41. Prick a hole in the tape covering the oil hole as shown.
    42. Fig 5: Applying Shop Air To Hole In Tape
    GM2016727Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • If air leaks out, reattach the adhesive tape.
    • Cover the oil hole with a shop rag or piece of cloth when applying air pressure to prevent oil from spraying.
  42. Apply approximately 200 kPa (28 psi) of air pressure to the hole pricked in procedure B to release the lock pin.
    43. IMPORTANT:
    • Be sure to keep the camshaft timing exhaust gear in the retard direction using a screwdriver. If the gear is released, it will return to the most advanced position automatically due to force from the spring.
    • Do not damage the camshaft timing exhaust gear.
  43. Using a screwdriver with its tip wrapped with tape, forcibly turn the camshaft timing exhaust gear in the retard direction (clockwise).
    44. Fig 6: Turning Camshaft Timing Exhaust Gear Within Movable Range
    GM2016728Courtesy of GENERAL MOTORS CORP.
  44. Using a screwdriver with its tip wrapped with tape, turn the camshaft timing exhaust gear within its movable range (19 to 21 degrees) 2 or 3 times without turning it to the most advanced position. Make sure that the camshaft timing exhaust gear turns smoothly.
  45. Remove the adhesive tape from the No. 1 camshaft bearing cap.
    46. Fig 7: View Of Camshaft Timing Gear & Bolts
    GM2016730Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • Before removing the camshaft timing gear, make sure that the lock pin has been released.
    • Be sure not to remove the other 4 bolts.
    • Keep the camshaft timing gear assembly horizontal while removing it from the camshaft.
  46. Remove the flange bolt while holding the hexagonal portion of the camshaft, and then remove the camshaft timing gear assembly.
    47. Fig 8: View Of Camshaft Timing Gear & Bolts
    GM2016732Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • Be sure not to remove the other 4 bolts.
    • Keep the camshaft timing exhaust gear assembly horizontal while removing it from the camshaft.
  47. Remove the flange bolt while holding the hexagonal portion of the camshaft, and then remove the camshaft timing exhaust gear assembly.
    48. Fig 9: Identifying Camshaft Bearing Cap Bolt Removal/Tightening Sequence
    GM2016733Courtesy of GENERAL MOTORS CORP.
  48. Remove camshaft bearing cap-Uniformly loosen and remove the 10 bearing cap bolts in the sequence shown in the illustration.
    49. Fig 10: View Of Camshaft Bearing Cap Bolt Removal/Tightening Sequence
    GM2016734Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Uniformly loosen the bolts while keeping the camshaft level.
  49. Uniformly loosen and remove the 15 bearing cap bolts in the sequence shown in the illustration.
    50. IMPORTANT: Arrange the removed parts in the correct order.
  50. Remove the 5 bearing caps.
    51. Fig 11: View Of Cylinder Head & Camshafts
    GM2016737Courtesy of GENERAL MOTORS CORP.
  51. Remove the camshaft.
    52. Fig 12: View Of Camshaft
    GM2016738Courtesy of GENERAL MOTORS CORP.
  52. Remove the No. 2 camshaft.
  53. Remove the No. 1 valve rocker arm subassembly.
  54. Remove the valve lash adjuster assembly.
    55. Fig 13: View Of Camshaft Bearings
    GM2016739Courtesy of GENERAL MOTORS CORP.
  55. Remove the 2 No. 1 camshaft bearings.
    56. Fig 14: Identifying Camshaft Bearings
    GM2016740Courtesy of GENERAL MOTORS CORP.
  56. Remove the 2 No. 2 camshaft bearings.
    57. Fig 15: Identifying 2 Bolts
    GM2016741Courtesy of GENERAL MOTORS CORP.
  57. Remove the 2 bolts.
    58. Fig 16: View Of Camshaft Housing Sub-Assembly
    GM2016744Courtesy of GENERAL MOTORS CORP.
  58. Remove the camshaft housing sub-assembly. Remove the 2 bolts and pry between the cylinder head and camshaft housing with a screwdriver.
    59. IMPORTANT: Tape the screwdriver tip before use.
  59. Inspect the No. 1 valve rocker arm sub-assembly.
  60. Inspect the valve lash adjuster assembly.
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