GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 Lucerne 🢒 Engine 🢒 Engine Cooling 🢒 Water Pump Pulley Replacement

Water Pump Pulley Replacement LD8

Special Tools

    • J 38823 Water Pump Pulley Installer
    • J 38825 Power Steering and Water Pump Pulley Remover
    • J 39946 Crankshaft Socket - 4.0L and 4.6L

Removal Procedure

    Object Number: 1207144 Size: SH
  1. Remove the water pump drive belt tensioner shield. Refer to Fuel Injector Sight Shield Replacement.
  2. Align the crankshaft to top dead center (TDC) using the J 39946 .
  3. Remove the end cap from the intake camshaft.

    4. Object Number: 52984 Size: SH
  4. Remove the water pump drive pulley from the intake camshaft using the J 38825 .

Installation Procedure

    Object Number: 1207161 Size: SH
  1. Place the water pump drive pulley in position on the intake camshaft.

    2. Object Number: 52985 Size: SH
  2. Install the water pump pulley onto the intake camshaft using the J 38823 . During installation, the tool will bottom out on the camshaft at the proper depth.

    3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1207144 Size: SH
  3. Install the camshaft end cap.

    4. Tighten
    Tighten the cap to 2 N·m (18 lb in).

  4. Install the water pump drive belt tensioner shield. Refer to Fuel Injector Sight Shield Replacement.