Secondary Camshaft Drive Chain Removal - Right

Important:  Store all components in a clean location.

1. Remove the camshaft position sensor bolt.
2. Remove the camshaft position sensor.
3. Remove and discard the camshaft position sensor O-ring.
   Fig 1: Removing Camshaft Position Sensor

   Courtesy of GENERAL MOTORS CORP.
4. Remove the chain guide access plugs located in the cylinder heads. Ensure the O-ring seal is on each access plug.
   Fig 2: Removing Chain Guide Access Plugs

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5. Remove the right secondary drive chain tensioner bolts.
6. Remove the right secondary camshaft drive chain tensioner allowing it to expand as you remove it.
   Fig 3: Removing Right Secondary Camshaft Drive Chain Tensioner

   Courtesy of GENERAL MOTORS CORP.
7. Remove the upper right secondary camshaft drive chain guide bolt.
   Fig 4: Removing Upper Right Secondary Camshaft Drive Chain Guide Bolt

   Courtesy of GENERAL MOTORS CORP.
8. Remove the camshaft sprocket bolts from the camshafts. Use an open wrench on the hex cast near the front of each camshaft to prevent engine rotation when loosening the camshaft sprocket bolts.
9. Lift the secondary camshaft drive chain from the camshaft sprocket teeth and slide the camshaft sprockets off of the camshafts.
   Fig 5: Removing Camshaft Sprocket Bolts

   Courtesy of GENERAL MOTORS CORP.
10. Remove the right secondary camshaft drive chain.
    Fig 6: Removing Right Secondary Camshaft Drive Chain

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11. Remove the right secondary camshaft drive chain shoe bolt.
    Fig 7: Removing Right Secondary Camshaft Drive Chain Shoe Bolt

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12. Remove the right secondary camshaft drive chain shoe.
    Fig 8: Removing Right Secondary Camshaft Drive Chain Shoe

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13. Remove the lower right secondary camshaft drive chain guide bolt.
    Fig 9: Removing Lower Right Secondary camshaft Drive

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14. Remove the right secondary camshaft drive chain guide.
    Fig 10: Removing Right Secondary Camshaft Drive Chain Guide

    Courtesy of GENERAL MOTORS CORP.