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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 - Off Vehicle >> Exhaust Camshaft and Valve Lifter Installation

Exhaust Camshaft and Valve Lifter Installation

WARNING: This page is about a different variant/trim than selected.
    NOTE:
    • Keep the lash adjuster free of dirt and foreign matter.
    • Only use clean engine oil.
  1. Install the valve lash adjuster assembly.
  2. Place the lash adjuster into a container filled with engine oil.
    3. NOTE: Install the lash adjuster to the same place it was removed from.
  3. Install the lash adjusters.
  4. Install the No. 1 valve rocker arm subassembly
  5. Apply engine oil to the lash adjuster tip and valve stem cap end.
    6. Fig 1: View Of Correct Rocker Arm Installation
    GM2016751Courtesy of GENERAL MOTORS CORP.
  6. Make sure that the valve rocker arms are installed as shown in the illustration.
  7. Clean both surfaces of the bearings.
  8. Install the 2 No. 1 camshaft bearings.
    9. NOTE: Position the bearings to the center of the bearing cap by measuring dimensions A and B.
  9. Using vernier calipers, measure the distance between the bearing cap edge and the camshaft bearing edge.

    Specification:  Dimension A - B: 0.7 mm (0.0276 in) or less

    10. Fig 2: Identifying oil control valve filter
    GM2017144Courtesy of GENERAL MOTORS CORP.
  10. Install the oil control valve filter.
  11. Clean both surfaces of the bearings.
  12. Install the 2 No. 2 camshaft bearings.
    13. Fig 3: Measuring Distance Between Bearing Cap Edge & Camshaft Bearing Edge
    GM2016747Courtesy of GENERAL MOTORS CORP.
    NOTE: Position the bearings to the center of the bearing cap by measuring dimension A.
  13. Using vernier calipers, measure the distance between the bearing cap edge and the camshaft bearing edge.

    Specification:  Dimension A: 1.05 to 1.75 mm (0.041 to 0.069 in)

  14. Clean the camshaft journals.
  15. Apply a light coat of engine oil to the camshaft journals, camshaft housings and bearing caps.
    16. Fig 4: View Of Camshaft
    GM2016738Courtesy of GENERAL MOTORS CORP.
  16. Install the No. 2 camshaft to the camshaft housing.
  17. Clean the camshaft journals.
  18. Apply a light coat of engine oil to the camshaft journals, camshaft housing.
    19. Fig 5: View Of Cylinder Head & Camshafts
    GM2016737Courtesy of GENERAL MOTORS CORP.
  19. Install the camshaft to the camshaft housing.
  20. Install the camshaft bearing cap.
  21. Apply the engine oil to the bearing caps.
    22. Fig 6: Locating Marks & Numbers On Camshaft Bearing Caps
    GM2016748Courtesy of GENERAL MOTORS CORP.
    NOTE:
    Make sure that the knock pin of the camshaft is positioned as shown in the illustration.
  22. Make sure of the marks and numbers on the camshaft bearing caps and place them in each proper position and direction.
    23. Fig 7: Identifying Camshaft Bearing Cap Bolt Tightening Sequence
    GM2016750Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  23. Install the 10 bolts and tighten in sequence to 16 N.m (12 lb ft).
    24. Fig 8: View Of Correct Rocker Arm Installation
    GM2016751Courtesy of GENERAL MOTORS CORP.
  24. Install the camshaft housing sub-assembly.
  25. Make sure that the valve rocker arm is installed.
    26. Fig 9: Applying Adhesive To Cylinder Head
    GM2016752Courtesy of GENERAL MOTORS CORP.
    NOTE:
    • Remove any oil from the contact surface.
    • Install the camshaft housing sub-assembly within 3 minutes and tighten the bolts within 15 minutes after applying seal packing.
    • Do not start the engine for at least 2 hours after installing.
  26. Apply Three Bond 1207B or equivalent, seal packing in a continuous bead.

    Specification:  Bead diameter: 3.5 to 4.0 mm (0.138 to 0.158 in)

    27. Fig 10: View Of Setting Camshafts
    GM2016755Courtesy of GENERAL MOTORS CORP.
  27. Set the camshaft and No. 2 camshaft as shown in the illustration.
    28. NOTE:
    • After installing the camshaft housing, make sure that the cam lobes are positioned as shown in the illustration.
    • If any of the bolts are loosened during installation, remove the camshaft housing, clean the installation surfaces, and reapply seal packing.
    • If the camshaft housing is removed because any of the bolts are loosened during installation, make sure that the previously applied seal packing does not enter any oil passages.
    • After installing the camshaft housing, wipe off any seal packing that seeped out from between the housing and the cylinder head.
  28. Install the camshaft housing and 17 bolts and tighten in sequence to 27 N.m (20 lb ft).
  29. Install the camshaft timing gear assembly.
  30. Check that the knock pin is installed on the camshaft.
    31. Fig 11: View Of Camshaft Timing Gear Assembly
    GM2016756Courtesy of GENERAL MOTORS CORP.
    CAUTION: Do not forcefully push in the camshaft timing gear assembly. This may cause the camshaft knock pin tip to damage the installation surface of the camshaft timing gear assembly.
  31. Put the camshaft timing gear and camshaft together with the straight pin and key groove misaligned, as shown in the illustration.
    32. NOTE: Do not turn the camshaft timing gear in the retard direction (clockwise).
  32. Turn the camshaft timing gear as shown in the illustration while pushing it gently against the camshaft. Push further at the position where the pin fits into the groove.
    33. Fig 12: Measuring Clearance Between Gear & Camshaft
    GM2017150Courtesy of GENERAL MOTORS CORP.
  33. Measure the clearance between the gear and the camshaft.

    Specification:  Clearance: 0.1-0.4 mm (0.004-0.016 in)

    34. Fig 13: View Of Tightening Camshaft Timing Gear
    GM2016760Courtesy of GENERAL MOTORS CORP.
  34. Install the flange bolt with the camshaft timing gear fixed in place and tighten to 54 N.m (40 lb ft).
    35. Fig 14: Checking Camshaft Timing Gear Movement
    GM2016761Courtesy of GENERAL MOTORS CORP.
  35. Check that the camshaft timing gear can move in the retard direction (clockwise) and locks in the most retarded position.
  36. Install the camshaft timing exhaust gear assembly.
  37. Check that the knock pin is installed on the camshaft.
    38. Fig 15: View Of Camshaft Timing Exhaust Gear & Camshaft
    GM2016762Courtesy of GENERAL MOTORS CORP.
  38. Put the camshaft timing exhaust gear and camshaft together by aligning the key groove and straight pin.
    39. NOTE: Be sure not to turn the camshaft timing exhaust gear in the retard direction (clockwise).
  39. Lightly press the gear against the camshaft, and turn the gear. Push further at the position where the pin enters the groove.
  40. Check that there is no clearance between the gear flange and the camshaft.
    41. Fig 16: View Of Tightening Flange Bolt With Camshaft Timing Exhaust Gear Fixed
    GM2016769Courtesy of GENERAL MOTORS CORP.
  41. Install the flange bolt with the camshaft timing exhaust gear fixed and tighten to 54 N.m (40 lb ft).
  42. Make sure that the camshaft timing exhaust gear is locked.
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