Camshaft Timing Chain Removal

Special Tools

• EN-952  Fixing Pin
• EN-953-A  Fixing Tool
• EN-955-10  Fixing Pin from EN-955  Kit

For equivalent regional tools, refer to Special Tools .

1. The engine should be adjusted to TDC.
2. The crankshaft should be fixed with EN-952  fixing pin.
3. The camshaft should be fixed with EN-953-A  fixing tool.
Fig 1: Timing Chain And Timing Chain Tensioner
Courtesy of GENERAL MOTORS COMPANY
4. Push the timing chain (2) in direction to the timing chain tensioner (1) and fix the tensioner with EN-955-10  fixing pin (3).
Fig 2: Upper Timing Chain Guide And Bolts
Courtesy of GENERAL MOTORS COMPANY
5. Remove the 2 upper timing chain guide bolts (1).
6. Remove the upper timing chain guide (2).
Fig 3: Timing Chain Guide Right Side
Courtesy of GENERAL MOTORS COMPANY
7. Remove the 2 timing chain guide right side bolts (2).
8. Remove the timing chain guide right side (1).
Fig 4: Timing Chain Tensioner Shoe And Bolt
Courtesy of GENERAL MOTORS COMPANY
9. Remove the timing chain tensioner shoe bolt (2).
10. Remove the timing chain tensioner shoe (1).
Fig 5: Timing Chain And Crankshaft Sprocket
Courtesy of GENERAL MOTORS COMPANY
11. Remove the timing chain (1) in compound with the crankshaft sprocket (2).