Camshaft Removal - Left

Tools Required: 

EN 46105  Camshaft Locking Tool

Fig 1: Removing & Installing Left Camshaft
Courtesy of GENERAL MOTORS CORP.
1. Remove the EN 46105-2 from the left camshafts.
2. Position the camshaft lobes in a neutral position.
Fig 2: Identifying Markings On Camshaft Bearing Caps
Courtesy of GENERAL MOTORS CORP.
3. Observe the markings on the bearing caps. Each bearing cap is marked in order to identify its location. The markings have the following meanings:
   • The raised feature must always be oriented toward the center of the cylinder head.
   • The I indicates the intake camshaft.
   • The E indicates the exhaust camshaft.
   • The number indicates the journal position from the front of the engine.
Fig 3: Removing & Installing Camshaft Bearing Caps
Courtesy of GENERAL MOTORS CORP.
4. Remove the camshaft bearing cap bolts.
5. Remove the camshaft bearing caps.
Fig 4: Removing & Installing Camshafts
Courtesy of GENERAL MOTORS CORP.
6. Remove the camshafts.
7. Replace the camshaft bearing caps and bolts.