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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1352 (Engine Mechanical - 1.8L (LV6)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Timing Chain Housing Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Timing Chain Cover Mating Surface
    GM743690Courtesy of GENERAL MOTORS CORP.
  1. Apply a continuous bead of GM P/N 12346240 (Canadian P/N 10953493) or an equivalent to the timing chain cover mating surface.
  2. Fig 2: Timing Chain Cover Bolts And Nuts
    GM234375Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the timing chain cover.

    Use the following fasteners in order to secure the cover:

    • Fifteen bolts (2-15)
    • Two nuts (1, 16)

      Tighten: 

      • Tighten the timing chain cover nut and bolts (10 mm (0.394 in) head) to 10 N.m (89 lb in).
      • Tighten the timing chain cover nut and bolts (12 mm (0.394 in) head) to 18 N.m (14 lb ft).

  4. Fig 3: Ratchet Pawl, Plunger, Hook And Pin
    GM234392Courtesy of GENERAL MOTORS CORP.
  5. Use the following steps in order to install the timing chain tensioner:
    1. Fully press the plunger (4).
    2. Apply the hook (2) to the pin (3).
    3. Install the timing chain tensioner.
  6. Fig 4: Timing Chain Tensioner Bolts
    GM234394Courtesy of GENERAL MOTORS CORP.
  7. Install the timing chain tensioner. Secure the timing chain tensioner using 2 bolts (1).

    Tighten:  Tighten the timing chain tensioner bolts to 10 N.m (89 lb in).

  8. Fig 5: Lower Drive Belt Tensioner Bolt
    GM234378Courtesy of GENERAL MOTORS CORP.
  9. Install the right side engine mounting bracket. Secure the bracket using 3 bolts.

    Tighten:  Tighten the engine mounting bracket bolts to 54 N.m (40 lb ft).

  10. Install the drive belt tensioner. Secure the tensioner using 1 bolt and 1 nut.

    Tighten: 

    • Tighten the bolt to 69 N.m (51 lb ft).
    • Tighten the nut to 29 N.m (21 lb ft).

  11. Raise and properly support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  12. Install the crankshaft position sensor. Secure the sensor using 1 bolt (5).

    Tighten:  Tighten the crankshaft position sensor bolt to 12 N.m (106 lb in).

  13. Fig 6: Installing Crankshaft Pulley
    GM234382Courtesy of GENERAL MOTORS CORP.
  14. Lubricate the front seal and the sealing surface of the crankshaft pulley with Chassis Grease GM P/N 1051344 (Canadian P/N 993037) or equivalent.
  15. Install the crankshaft pulley onto the crankshaft indexing keyway.
  16. Install the crankshaft pulley retaining bolt using J 8614-01  to prevent crankshaft rotation when tightening the bolt.

    Tighten:  Tighten the bolt to 142 N.m (105 lb ft).

  17. Fig 7: Power Steering Pump Nuts And Bolts
    GM236875Courtesy of GENERAL MOTORS CORP.
  18. Install the power steering pump.
  19. Use the following fasteners in order to secure the power steering pump:
    • Two bolts (1)
    • Two nuts

      Tighten:  Tighten the power steering pump bolts to 37 N.m (27 lb ft).

  20. Install the right engine splash shield. Refer to Splash Shield Replacement - Engine - Left in Body Front End.
  21. Lower the vehicle.
  22. Connect the power steering oil pressure switch connector.
  23. Fig 8: Rotating Crankshaft Clockwise 1 Revolution
    GM234400Courtesy of GENERAL MOTORS CORP.
  24. Rotate the crankshaft clockwise 1 revolution. Ensure that the plunger on the timing chain tensioner has released.
  25. Fig 9: Releasing Plunger
    GM234407Courtesy of GENERAL MOTORS CORP.
  26. Complete the following steps if the plunger does not release:
    1. Use a screwdriver or your finger in order to press the timing chain dampener into the timing chain tensioner.
    2. Release the hook from the pin.
    3. Verify proper timing chain alignment after the plunger has released.
  27. Install the cylinder head cover. Refer to Cylinder Head Cover Replacement .
  28. Install the engine mount. Refer to Engine Mount Replacement .
  29. Remove the engine support fixture. Refer to Engine Support Fixture .
  30. Install the generator. Refer to Generator Replacement in Engine Electrical.
  31. Fill the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
  32. Connect the negative battery cable.

    Tighten:  Tighten the battery cable bolt to 15 N.m (11 lb ft).