Intake Camshaft Installation

Special Tools

• EN-45059  Angle Meter
• EN-46789  Camshaft Fixing Tool

For equivalent regional tools, refer to Special Tools .

1. Install the intake camshaft (1).
   Fig 1: Identifying Intake Camshaft And Camshaft Housing Plug

   Courtesy of GENERAL MOTORS COMPANY
2. Install the intake camshaft sealing ring (2).
3. Remove the hole plug (3).
   Fig 2: Identifying Intake Camshaft Sprocket, Bolt, Hole Plug And EN-46789 Fixing Tool

   Courtesy of GENERAL MOTORS COMPANY
4. Install the EN-46789  fixing tool (4).
5. Turn the camshaft until the EN-46789  fixing tool audibly engages.
6. Install the intake camshaft sprocket (1).
7. Install the NEW intake camshaft sprocket bolt (2) and tighten a first pass to 40 N.m (30 lb ft).
   CAUTION: Refer to Fastener Caution .
8. Tighten the NEW intake camshaft sprocket bolt a final pass to an additional 55 degrees, using the EN-45059  meter.
   CAUTION: Refer to Torque-to-Yield Fastener Caution .
9. Remove the EN-46789  fixing tool (4).
10. Install the hole plug (3) and tighten to 25 N.m (18 lb ft).