GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Prizm 🢒 Engine 🢒 Engine Mechanical - 1.8L 🢒 Timing Chain Housing Replacement

Removal Procedure

    Object Number: 422205 Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  3. Remove the windshield washer fluid reservoir mounting bolt.
  4. Disconnect the windshield washer pump connector.
  5. Disconnect the windshield washer pump fluid line.
  6. Plug the pump outlet
  7. Remove the windshield washer fluid reservoir.

    8. Object Number: 244267 Size: SH
  8. Remove the accessory drive belt. Refer to Drive Belt Replacement in Engine Mechanical.
  9. Remove the generator from the engine.

    10. Refer to Generator Replacement in Engine Electrical.


    Object Number: 428195 Size: SH
  10. Install the engine support fixture. Refer to Engine Support Fixture in Engine Mechanical.

    11. Object Number: 234412 Size: SH
  11. Remove the following fasteners from the right side engine mount:
    12. • The two nuts (3)
    • The four bolts (1)
  12. Loosen the A/C receiver pinch clamp.
  13. Lift the A/C receiver in order to access the right side engine mount.
  14. Remove the right side engine mount.
  15. Remove the cylinder head cover. Refer to Cylinder Head Cover Replacement in Engine Mechanical.

    16. Object Number: 234138 Size: SH
  16. Set the number one piston to the top dead center position.
  17. Align the camshaft timing sprockets.
  18. Disconnect the power steering oil pressure switch connector.
  19. Raise the vehicle. Support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  20. Remove the right side lower engine splash shield.

    21. Object Number: 236875 Size: SH
  21. Remove the two power steering pump through bolts and the nuts (1).
  22. Remove the power steering pump from the mounting surface.

    23. Move the pump to the side.


    Object Number: 234153 Size: SH
  23. Remove the one crankshaft pulley bolt.
  24. Remove the accessory drive belt. Refer to Drive Belt Replacement in Engine Mechanical.
  25. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  26. Remove the right splash shield.
  27. Remove the crankshaft pulley retaining bolt using J 8614-01 to prevent crankshaft rotation when loosening the bolt.

    28. Object Number: 234378 Size: SH
  28. Remove the following components:
    29. • The crankshaft position sensor bolt (5)
    • The sensor
  29. Lower the vehicle.
  30. Remove the following components from the mounting surface:
    31. • The drive belt tensioner bolt
    • The drive belt tensioner nut
    • The drive belt tensioner

    Object Number: 234178 Size: SH
  31. Remove the timing chain tensioner bolts (1, 2).
  32. Remove the timing chain tensioner.

    33. Object Number: 234182 Size: SH
  33. Remove the following fasteners:
    34. • The timing chain cover bolts (1-14)
    • The timing chain cover nuts (15)
  34. Remove the timing chain cover.

Installation Procedure

    Object Number: 234368 Size: SH
  1. Apply a continuous bead of GM P/N 12346240 or an equivalent to the timing chain cover mating surface.

    2. Object Number: 234375 Size: MH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the timing chain cover.

    3. Use the following fasteners in order to secure the cover:

    • Fifteen bolts (1-14)
    • One nut (15)

    Tighten

       • 

    Tighten the timing chain cover nut and bolts (10 mm head) to 10 N·m (89 lb in).

       • 

    Tighten the timing chain cover nut and bolts (12 mm head) to 18 N·m (14 lb ft).


    Object Number: 234392 Size: SH
  3. Use the following steps in order to install the timing chain tensioner:
    4. 3.1. Fully depress the plunger (4).
    3.2. Apply the hook (2) to the pin (3).
    3.3. Install the timing chain tensioner.

    Object Number: 234394 Size: SH
  4. Install the timing chain tensioner. Secure the timing chain tensioner using two bolts (1).

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


    Object Number: 234378 Size: SH
  5. Install the right side engine mounting bracket. Secure the bracket using three bolts.

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

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

    7. Tighten

        • Tighten the bolt to 69 N·m (51 lb ft).
        • Tighten the nut to 29 N·m (21 lb ft).
  7. Raise and properly support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  8. Install the crankshaft position sensor. Secure the sensor using one bolt (5).

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


    Object Number: 234382 Size: SH
  9. Lubricate the front seal and the sealing surface of the crankshaft pulley with Chassis Grease GM P/N 1051344 or equivalent.
  10. Install the crankshaft pulley onto the crankshaft indexing keyway.

    11. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  11. Install the crankshaft pulley retaining bolt using J 8614-01 to prevent crankshaft rotation when tightening the bolt.

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


    Object Number: 236875 Size: SH
  12. Install the power steering pump.
  13. Use the following fasteners in order to secure the power steering pump:
    14. • Two bolts (1)
    • Two nuts

    Tighten
    Tighten the power steering pump bolts to 43 N·m (32 lb ft).

  14. Install the right side lower engine splash shield.
  15. Lower the vehicle.
  16. Connect the power steering oil pressure switch connector.

    17. Object Number: 234400 Size: SH
  17. Rotate the crankshaft clockwise one revolution. Ensure that the plunger on the timing chain tensioner has released.

    18. Object Number: 234407 Size: SH
  18. Complete the following steps if the plunger does not release:
    19. 18.1. Use a screwdriver or your finger in order to press the timing chain dampener into the timing chain tensioner.
    18.2. Release the hook from the pin.
    18.3. Verify proper timing chain alignment after the plunger has released.
  19. Install the cylinder head cover.

    20. Object Number: 234412 Size: SH
  20. Install the right side engine insulator.
  21. Use the following fasteners in order to secure the insulator:
    22. • Three bolts (1)
    • Two nuts (3)

    Tighten

       • 

    Tighten the right side engine mount bolts (1, 2, 4) to 54 N·m (40 lb ft).

       • 

    Tighten the right side engine insulator nuts (3) to 54 N·m (40 lb ft).

  22. Lower the A/C receiver.

    23. Tighten the pinch clamp.


    Object Number: 243468 Size: SH
  23. Remove the engine support fixture.
  24. Install the generator. Refer to Generator Replacement in Engine Electrical.
  25. Remove the plug from the windshield washer reservoir.
  26. Connect the windshield washer fluid line.
  27. Connect the windshield washer pump connector.
  28. Install the windshield washer reservoir. Secure the reservoir using one bolt.
  29. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  30. Connect the negative battery cable.

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