GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

    • J 33049 Crankshaft Sprocket Removal Tool
    • J 41666 Crankshaft Sprocket Installer

    Object Number: 63263  Size: SH
  1. Remove the oil pump. Refer to Oil Pump, Screen, and Crankshaft Oil Deflector Replacement .
  2. Rotate the crankshaft until the timing marks on the crankshaft and camshaft sprockets are aligned.
  3. Remove the timing chain and sprocket. Refer to Timing Chain and Sprockets Removal .

Installation Procedure


    Object Number: 63263  Size: SH
  1. Install the timing chain and sprocket. Refer to Timing Chain and Sprockets Installation .
  2. Install the oil pump. Refer to Oil Pump, Screen, and Crankshaft Oil Deflector Replacement .