GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 37868 Oil Gallery Plug Installer

    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. Remove the camshaft housings. Refer to Intake Camshaft, Housing and Lifter Replacement and Exhaust Camshaft, Housing and Lifter Replacement

  3. Object Number: 60808  Size: SH
  4. Disassemble the oil gallery plug as follows:
  5. 3.1. Using a 8.33 mm (21/64 in) bit, drill the oil gallery plug.
    3.2. With a 10.0 mm (0.3937 in) bottoming tap, thread the plug.
    3.3. Install a 10.0 mm (0.3937 in)bolt into the plug and pull the plug out.
  6. Clean the oil gallery plug hole.

Installation Procedure


    Object Number: 60808  Size: SH
  1. Assemble the oil gallery plug with the J 37868 .
  2. Install the camshaft housings. Refer to Intake Camshaft, Housing and Lifter Replacement and Exhaust Camshaft, Housing and Lifter Replacement .
  3. Connect the negative battery cable.