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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 429 (Engine Mechanical - 1.8L (LNK)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Timing Chain Housing Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Apply a continuous bead of GM P/N 12346240 (Canadian P/N 10953493) or an equivalent to the timing chain cover mating surface.
    Fig 1: Applying Sealant To Timing Chain Cover Mating Surface
    G01546394Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE .
  2. Install the timing chain cover.

    Use the following fasteners in order to secure the cover:

    • The 15 bolts (2-15)
    • The 2 nuts (1, 16)

      Tighten 

      • Tighten the timing chain cover nut and bolts (10 mm (0.394 in) head) to 10 N.m (89 Ib. in).
      • Tighten the timing chain cover nut and bolts (12 mm (0.394 in) head) to 18 N.m (14 Ib. ft).
    Fig 2: Locating Timing Chain Cover Nuts & Bolts
    G01546395Courtesy of GENERAL MOTORS CORP.
  3. Use the following steps in order to install the timing chain tensioner:
    1. 3.1. Fully depress the plunger (4).
    2. 3.2. Apply the hook (2) to the pin (3).
    3. 3.3. Install the timing chain tensioner.
    Fig 3: Preparing Timing Chain Tensioner
    G01546396Courtesy of GENERAL MOTORS CORP.
  4. Install the timing chain tensioner. Secure the timing chain tensioner using 2 bolts (1).

    Tighten 

    Tighten the timing chain tensioner bolts to 21 N.m (15 Ib. ft).

    Fig 4: Installing Timing Chain Tensioner
    G01546397Courtesy of GENERAL MOTORS CORP.
  5. Install the right side engine mounting bracket. Secure the bracket using three bolts.

    Tighten 

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

  6. Install the drive belt tensioner. Secure the tensioner using one bolt and one nut.

    Tighten 

    • Tighten the bolt to 100 N.m (74 Ib. ft).
    • Tighten the nut to 29 N.m (21 Ib. ft).
  7. Raise and properly support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
  8. Install the crankshaft position sensor. Secure the sensor using 1 bolt (5).
    Fig 5: Installing Crankshaft Position Sensor
    G01546398Courtesy of GENERAL MOTORS CORP.

    Tighten 

    Tighten the crankshaft position sensor bolt to 9 N.m (80 Ib. in).

  9. 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.
  10. Install the crankshaft pulley onto the crankshaft indexing keyway.
  11. Install the crankshaft pulley retaining bolt using J 8614-01  .

    Tighten 

    Tighten the bolt to 118 N.m (87 Ib. ft).

    Fig 6: Installing Crankshaft Pulley Retaining Bolt
    G01546399Courtesy of GENERAL MOTORS CORP.
  12. Install the power steering pump.
    Fig 7: Installing Power Steering Pump
    G01546400Courtesy of GENERAL MOTORS CORP.
  13. Use the following fasteners in order to secure the power steering pump:
    • The 2 bolts (1)
    • The 2 nuts

      Tighten 

      Tighten the power steering pump bolts to 36 N.m (27 Ib. ft).

  14. Install the right side engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - RIGHT .
  15. Lower the vehicle.
  16. Connect the power steering oil pressure switch connector.
  17. Rotate the crankshaft clockwise one revolution. Ensure that the plunger on the timing chain tensioner has released.
    Fig 8: Rotating Crankshaft
    G01546401Courtesy of GENERAL MOTORS CORP.
  18. Complete the following steps if the plunger does not release:
    1. 18.1. Use a screwdriver or your finger in order to press the timing chain dampener into the timing chain tensioner.
    2. 18.2. Release the hook from the pin.
    3. 18.3. Verify proper timing chain alignment after the plunger has released.
    Fig 9: Releasing Plunger
    G01546402Courtesy of GENERAL MOTORS CORP.
  19. Install the cylinder head cover. Refer to Cylinder Head Cover Replacement .
  20. Install the right side engine mount. Refer to Engine Mount Replacement .
  21. Lower the A/C receiver. Tighten the pinch clamps.
  22. Remove the engine support fixture.
  23. Install the generator. Refer to GENERATOR .
  24. Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
  25. Connect the negative battery cable.

    Tighten 

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

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