GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Riviera 🢒 General Information 🢒 General Information 🢒 Engine Mount Bracket Replacement

Removal Procedure
    • J 28467-360 Engine Support Fixture
    • J 28467-94B Engine Support Fixture Adapter
    • J 28467-330 Engine Support Fixture Adapter
    • J 28467-350 Engine Support Fixture Adapter

    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. Install the J 28467-360 to the engine.
  3. For Engine Code 1, remove the ignition module. Set the module aside.
  4. Remove the accessory drive belt. Refer to Drive Belt Replacement .
  5. Remove the supercharger drive belt tensioner. Refer to Drive Belt Tensioner Replacement .
  6. Remove the power steering pump. Set the power steering pump aside. Refer to Power Steering Pump Replacement in Steering.
  7. Remove the torque axis engine mount. Refer to Engine Mount Replacement .

    8. Object Number: 45484 Size: SH
  8. Remove the nuts from the engine mount bracket.
  9. Remove the studs from the engine mount bracket.
  10. Remove the torque axis engine mount bracket.

Installation Procedure

    Object Number: 45484 Size: SH
  1. Install the torque axis engine mount bracket.
  2. Install the studs to the engine mount bracket.

    3. 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.

  3. Install the nuts to the engine mount bracket.

    4. Tighten

        • Tighten the upper nut to 30 N·m (22 lb ft).
        • Tighten the lower nut to 70 N·m (52 lb ft).
  4. Install the torque axis engine mount. Refer to Engine Mount Replacement .
  5. Install the power steering pump. Refer to Power Steering Pump Replacement in Steering.
  6. Install the supercharger belt tensioner. Refer to Drive Belt Tensioner Replacement .
  7. For Engine Code 1, install the ignition module.
  8. Install the accessory drive belt. Refer to Drive Belt Replacement .
  9. Remove the engine support fixture.
  10. Connect the negative battery cable.