GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 37868 Oil Gallery Plug Installer

  1. Disconnect the negative battery cable. Refer to

    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.

    in General Information.
  2. Remove the camshaft housing.
  3. Refer to Intake Camshaft, Housing and Lifter Replacement , for the intake camshaft housing.

    Refer to Exhaust Camshaft, Housing and Lifter Replacement , for the exhaust camshaft housing.


    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 bolt into the plug and pull the plug out.
  6. Clean the oil gallery plug hole.

Installation Procedure

  1. Assemble the oil gallery plug with the J 37868 .
  2. Install the camshaft housing.
  3. Refer to Intake Camshaft, Housing and Lifter Replacement , for the intake camshaft housing.

    Refer to Exhaust Camshaft, Housing and Lifter Replacement , for the exhaust camshaft housing.

  4. Connect the negative battery cable.