LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1814 (Engine Mechanical - 2.2L (L61)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Timing Chain, Sprockets, and/or Tensioner Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Outlet Resonator/Duct Assembly
    GM898897Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (2.2L (L61) and 3.5L (L66)) .
  2. Disconnect the intake air temperature (IAT) sensor connector.
  3. Loosen the clamp at the air cleaner assembly.
  4. Remove the push pin attachment from the outlet resonator/duct assembly to the support bracket.
  5. Loosen the clamp at the throttle body assembly.
  6. Disconnect the positive crankcase ventilation (PCV) fresh air vent hose at the cam cover.
  7. Remove the outlet resonator/duct assembly.
  8. Remove the air cleaner assembly hold-down bolt.
  9. Remove the air cleaner assembly.
    10. Fig 2: View of Ignition Module Housing Assembly With Spark Plug Boots
    GM951506Courtesy of GENERAL MOTORS CORP.
  10. Remove the ignition module bolts.
  11. Remove the ignition module assembly.
    12. Fig 3: Disconnecting/Connecting Ground Strap On The Camshaft Cover Assembly
    GM895199Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the de-gas hose at the clamp at the cylinder head and unclip from the fuel rail. Position away from the cam cover assembly.
  13. Disconnect the ground strap at the rear of the cam cover assembly.
    14. Fig 4: View Of Fuel System Pressure Tester
    GM854376Courtesy of GENERAL MOTORS CORP.
  14. Relieve the fuel system pressure.
  15. Disconnect the after the pressure has been relieved.
    16. Fig 5: View Of Fuel Feed Pipe Fastener
    GM854304Courtesy of GENERAL MOTORS CORP.
  16. Disconnect the fuel rail bracket and bolt at the rear of the cam cover.
    17. Fig 6: Connecting/Disconnecting Fuel Feed Pipe
    GM854303Courtesy of GENERAL MOTORS CORP.
  17. While supporting the fuel rail assembly with an open end wrench, loosen the transfer line fitting at the fuel rail.
    18. Fig 7: Removing/Installing Cam Cover Assembly
    GM894940Courtesy of GENERAL MOTORS CORP.
  18. Position the fuel line away from the cam cover assembly.
  19. Remove the cam cover assembly bolts.
  20. Remove the cam cover assembly.
    21. Fig 8: Locating No. 1 Piston To 60 Degrees Before Top Dead Center
    GM951992Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: To rotate the camshaft, use a 24 mm open-end wrench on the camshaft flats. Camshaft should be rotated in a clockwise direction only, facing camshaft sprockets from the passenger side of the vehicle.
  21. Locate the No. 1 piston to approximately 60 degrees before top dead center (diamond shaped hole on intake camshaft sprocket at 12 o'clock position). Remove the spark plugs. This will ease the rotation effort.
    22. Fig 9: Removing/Installing Upper Timing Chain Guide
    GM894944Courtesy of GENERAL MOTORS CORP.
  22. Remove the upper timing chain guide.
    23. Fig 10: Removing/Installing Timing Chain Tensioner Assembly
    GM894951Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The timing chain tensioner must be removed to unload the chain tension before the timing chain is removed. If it is removed, the timing chain may bind and be difficult to remove.
  23. Remove the timing chain tensioner.
    24. Fig 11: Fixed Timing Chain Guide Access Plug
    GM894968Courtesy of GENERAL MOTORS CORP.
  24. Remove the fixed timing chain guide access plug.
  25. Using a magnetic socket, remove the upper fixed guide bolt.
    26. Fig 12: Installing SA9105E Set Up For SUV Application
    GM952023Courtesy of GENERAL MOTORS CORP.
  26. Install the set up for SUV application.
    27. Fig 13: View Of RH Engine Mount
    GM928650Courtesy of GENERAL MOTORS CORP.
  27. Remove the right-hand engine mount-to-bracket bolts.
  28. Remove the right-hand mount assembly nuts.
  29. Remove the right-hand engine mount assembly.
    30. Fig 14: Removing/Installing Right Hand Engine Mount Bracket
    GM928024Courtesy of GENERAL MOTORS CORP.
  30. Remove the right-hand mount bracket.
  31. Remove the right-hand engine mount bracket.
  32. Raise the vehicle on a hoist.
  33. Remove the right wheel and splash shield.
    34. IMPORTANT: Do not rest the engine assembly on the oil pan plug outside of the oil pan near the crankshaft or an oil leak may result.
  34. Install the block of wood (1x2x4) between the oil pan and the cradle.
  35. Install the J 44811  .
  36. Remove the accessory drive belt.
  37. Remove the tensioner bolt. To remove the bolt, an access hole has been provided through the inner and outer engine rail.
    38. Fig 15: Removing & Installing Belt Tensioner Bolt
    GM894941Courtesy of GENERAL MOTORS CORP.
  38. Remove the tensioner assembly.
    39. Fig 16: Removing & Installing Harmonic Balancer Using Holder On Damper Assembly
    GM895194Courtesy of GENERAL MOTORS CORP.
  39. Install the J 38122-A  . See Special Tools .
    40. Fig 17: Removing & Installing Damper Assembly
    GM895197Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The crankshaft balancer pulley bolt head and washer assembly prevents oil leakage at the center of the pulley. Do not damage the sealing surfaces. If the pulley cannot be removed by pulling with the hand, use a three-jaw puller.
  40. Remove the crankshaft balancer pulley bolt and pulley.

    Discard the pulley bolt.

    41. Fig 18: Removing/Installing Front Cover Assembly
    GM895054Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: To avoid damage to the front cover assembly, do not pry against the cover.
  41. Remove the front cover assembly bolts.
  42. Remove the lower water pump assembly bolt.
  43. Remove the front cover assembly and gasket.
    44. Fig 19: Timing Chain Adjustable Guide And Bolt
    GM894967Courtesy of GENERAL MOTORS CORP.
  44. Remove the adjustable guide bolt.
    45. Fig 20: Removing/Installing Fixed Timing Chain Guide
    GM894969Courtesy of GENERAL MOTORS CORP.
  45. Remove the lower fixed guide bolt.
  46. Remove the fixed guide.
    47. Fig 21: Removing/Installing Exhaust Camshaft Sprocket
    GM894960Courtesy of GENERAL MOTORS CORP.
  47. Use a 24 mm wrench to hold the camshaft assembly while removing the exhaust sprocket bolt. Discard the bolt.
  48. Remove the exhaust sprocket.
    49. Fig 22: Timing Chain Adjustable Guide And Bolt
    GM894967Courtesy of GENERAL MOTORS CORP.
  49. Remove the adjustable guide through the top of the cylinder head.
    50. Fig 23: Holding Camshaft Assembly Using 24 mm Wrench
    GM895205Courtesy of GENERAL MOTORS CORP.
  50. Use a 24 mm wrench to hold the camshaft assembly while removing the intake sprocket bolt. Discard the bolt.
  51. Remove the intake sprocket.
  52. Remove the timing chain assembly through the top of the cylinder head.
  53. Remove the timing chain drive sprocket from the crankshaft.
    54. Fig 24: Removing & Installing Timing Chain Oiling Nozzle
    GM895210Courtesy of GENERAL MOTORS CORP.
  54. Remove the timing chain oiler nozzle and bolt.
  55. Clean the oil nozzle orifice on the block to remove any debris.
    56. Fig 25: Exploded View Of Timing Chain & Components
    GM895127Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Replace the timing chain guides if the wear exceeds 1.12 mm (0.045 in).
  56. Inspect the timing chain guide for wear.
  57. Inspect the timing chain and the sprockets for signs of excessive wear, chipping, or seizure to links on the chain.
scientia non olet · About LEMON Manuals