GM Service Manual Online
For 1990-2009 cars only

Special Tools

J-33049 Camshaft Bearing Service Set

For equivalent regional tools, refer to Special Tools.


    Object Number: 622704  Size: SH
  1. Assemble the J-33049 set according to the manufacturer's instructions.

  2. Object Number: 4985  Size: SH

    Caution: Severe engine damage may result if the oil holes are not correctly aligned.

  3. Install the camshaft bearings in the following order:
  4. 2.1. Index the camshaft bearing oil holes with the engine block oil passages.
    2.2. Place the bearing on the J-33049 set .
    2.3. Install the third camshaft bearing.
    2.4. Install the second camshaft bearing.
    2.5. Install the outer camshaft bearings.

    Object Number: 187008  Size: SH
  5. Apply sealer GM P/N 12377901 (Canadian P/N 10953504) or the equivalent to the camshaft rear bearing hole plug.
  6. Install the camshaft rear bearing hole plug.