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Camshaft Component Removal Note

WARNING: This page is about a different variant/trim than selected.
CAUTION:
  • Do not rotate the crankshaft counterclockwise. The timing chains may bind, causing engine damage.
  1. Rotate the crankshaft counterclockwise until the keyway is in the 9 o'clock position.
    Fig 1: Rotating Crankshaft Keyway At 9 O'Clock Position
    G08140330
  2. Slowly compress the camshaft timing chain tensioner (LH) piston by hand.
  3. Insert an approx. 1.0 mm {0.039 in}  thin wire or paper clip into the camshaft timing chain tensioner (LH) shown in the figure to hold the tensioner piston.
    Fig 2: Inserting Wire Or Paper Clip Into Camshaft Timing Chain Tensioner (LH)
    G08140331
    NOTE:
    • When the timing chain removed, valve spring pressure will rotate the camshaft (LH) approx. 3 ° to a neutral position.
  4. Verify that the camshafts (LH) are in the neutral position.
    Fig 3: Identifying Camshafts (LH) Neutral Position
    G08140332
    NOTE:
    • The cylinder head and the camshaft bearing caps are numbered to make sure they are reassembled in their original position. When removed, keep the bearing caps with the cylinder head they were removed from. Do not mix the caps.
  5. Loosen the LH bank camshaft cap bolts in several passes in the order shown in the figure and remove the camshaft cap.
    Fig 4: Identifying LH Bank Camshaft Cap Bolt Removal Sequence
    G08140333
  6. Remove the camshaft, camshaft sprocket, camshaft timing chain, and camshaft timing chain tensioner of the LH bank as a single unit.
  7. Slowly compress the camshaft timing chain tensioner (RH) piston by hand.
  8. Insert an approx. 1.0 mm {0.039 in}  thin wire or paper clip into the camshaft timing chain tensioner (RH) shown in the figure to hold the tensioner piston.
    Fig 5: Inserting Wire Or Paper Clip Into Camshaft Timing Chain Tensioner (RH)
    G08140334
  9. Put a wrench to the position shown in the figure on the RH bank camshaft, rotate the RH bank camshaft counterclockwise, and set the camshaft to the neutral position.
    Fig 6: Rotating RH Bank Camshaft Counterclockwise
    G08140335
    Fig 7: Identifying Camshaft Neutral Position Timing Marks
    G08140336
    NOTE:
    • The cylinder head and the camshaft bearing caps are numbered to make sure they are reassembled in their original position. When removed, keep the bearing caps with the cylinder head they were removed from. Do not mix the caps.
  10. Loosen the RH bank camshaft cap bolts in several passes in the order shown in the figure and remove the camshaft cap.
    Fig 8: Identifying RH Bank Camshaft Cap Bolt Removal Sequence
    G08140337
  11. Remove the camshaft, camshaft sprocket, camshaft timing chain, and camshaft timing chain tensioner of the RH bank as a single unit.
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