Timing Drive Components: Installation

NOTE: Failure to verify correct timing drive component alignment will result in severe engine damage.
• 1.
  Install the crankshaft sprocket with the timing mark facing out. The timing mark on the LH and RH timing chains will be aligned to this mark during assembly.

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NOTE: LH shown, RH similar.
• 2.
  Position the chain tensioner in a soft-jawed vise.

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NOTE: LH shown, RH similar.
• 3.
  Hold the chain tensioner ratchet lock mechanism away from the ratchet stem with a small pick.

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NOTE: During tensioner compression, do not release the ratchet stem until the tensioner piston is fully bottomed in its bore or damage to the ratchet stem will result.
• 4.
  Slowly compress the timing chain tensioner.

• 5.
  
  Retain the tensioner piston with a 1.5 mm (0.05 in) wire or paper clip.

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• 6.
  
  If timing marks in the timing chains are not evident, use a permanent-type marker to mark the crankshaft and camshaft timing marks on the LH and RH timing chains.

  • 1.
    
    Mark any link to use as the crankshaft timing mark.

  • 2.
    
    Starting with the crankshaft timing mark, count 29 links and mark the link.

  • 3.
    
    Continue counting to link 42 and mark the link.

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• 7.
  
  Verify that the LH camshafts are correctly positioned.

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• 8.
  
  Position the LH timing chain and guide and install the bolts.
  • Align the marks on the timing chain with the marks on the camshaft and crankshaft sprockets.
  • Tighten to 25 Nm (18 lb-ft).

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• 9.
  
  Install the LH timing chain tensioner arm and the LH timing chain tensioner.

  • 1.
    
    Install the tensioner arm.

  • 2.
    
    Position the tensioner.

  • 3.
    
    Install the bolts.
  • Tighten to 25 Nm (18 lb-ft).

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• 10.
  
  Install the crankshaft damper bolt and rotate the crankshaft clockwise 120 degrees until the crankshaft keyway is in the 3 o'clock position.

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• 11.
  
  Verify that the RH camshafts are correctly positioned.

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• 12.
  
  Install the RH timing chain and chain guide and install the bolts.
  • Align the marks on the timing chain with the marks on the camshaft and crankshaft sprockets.
  • Tighten to 25 Nm (18 lb-ft).

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• 13.
  
  Install the RH timing chain tensioner and tensioner arm.

  • 1.
    
    Install the tensioner arm.

  • 2.
    
    Position the tensioner.

  • 3.
    
    Install the bolts.
  • Tighten to 25 Nm (18 lb-ft).

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• 14.
  
  Remove the LH and RH timing chain tensioner piston retaining wires.

• 15.
  
  Rotate the crankshaft counterclockwise 120 degrees to top dead center (TDC).

NOTE: Failure to verify correct timing drive component alignment will result in severe engine damage.
• 16.
  Verify the timing with the following steps.

  • 1.
    
    There should be 12 chain links between the camshaft timing marks.

  • 2.
    
    There should be 27 chain links between the camshaft and the crankshaft timing marks.

  • 3.
    
    There should be 30 chain links between the camshaft and the crankshaft timing marks.

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• 17.
  
  Remove the crankshaft damper bolt.

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NOTE: This pulse wheel is used in several different engines. Install the pulse wheel with the keyway in the slot stamped "30" or "30RFF" (orange in color).
• 18.
  Install the ignition pulse wheel.

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• 19.
  
  Install the LH and RH spark plugs.
  • Tighten to 15 Nm (11 lb-ft).

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• 20.
  
  Install the engine front cover. For additional information, refer to Engine Front Cover .