Exhaust Camshaft Removal

Special Tools

• EN-50509  Split Intake Camshaft Sprocket Fixing Tool
• EN-51143  Camshaft Sprocket Fixing Tool

For equivalent regional tools, refer to Special Tools .

1. Courtesy of GENERAL MOTORS COMPANY

   Remove the EN-51143  fixing tool (1).

2. Courtesy of GENERAL MOTORS COMPANY

   Remove the camshaft bearing rear cap bolts (1).

3. Remove the camshaft bearing rear cap (2).

4. Courtesy of GENERAL MOTORS COMPANY

   Install the EN-50509  fixing tool (1) to the exhaust camshaft sprocket (2).

5. Fig 1: Identifying Exhaust Camshaft Bearing Cap Bolts With Loosening Sequence

   Courtesy of GENERAL MOTORS COMPANY

   Loosen the 8 exhaust camshaft bearing cap bolts in sequence as shown.

6. Courtesy of GENERAL MOTORS COMPANY

   Remove the 8 exhaust camshaft bearing cap bolts (1).

7. Remove the 4 exhaust camshaft bearing caps (2) and lay aside in the order as they was removed.

8. Courtesy of GENERAL MOTORS COMPANY

   NOTE:

   If the exhaust camshaft are reinstall, do not remove the EN-50509  fixing tool.

   Remove the exhaust camshaft (1).