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Timing - Single Camshaft

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Securing Timing Chain Tensioner Using Timing Chain Wedge
GC0011843Courtesy of DAIMLERCHRYSLER CORP.
1 - CYLINDER HEAD
2 - SPECIAL TOOL 8379
3 - TIMING CHAIN
NOTE: to adjust the timing on one camshaft, preform the following procedure.
  1. Using Chain Tensioner Wedge, Special Tool 8379 (2), stabilize the secondary chain drive (3). For reference purposes, mark the chain-to-sprocket position.
  2. Remove the camshaft drive gear retaining bolt.
    Fig 2: Camshaft Drive Gear Removal/Installation
    GC0011842Courtesy of DAIMLERCHRYSLER CORP.
    1 - SPECIAL TOOL 8279 TIMING CHAIN WEDGE
    2 - CAMSHAFT DRIVE GEAR
    3 - RETAINING BOLT
    4 - CYLINDER HEAD
  3. Carefully remove the camshaft drive gear (2) from the camshaft.
  4. Re-index the camshaft drive gear in the chain until the V6 mark is at the same position as the V6 mark on the opposite camshaft drive gear.
    Fig 3: Special Tool 8428
    GC0011848Courtesy of DAIMLERCHRYSLER CORP.
    1 - Camshaft hole
    2 - Special Tool 8428
  5. Using Special Tool 8428 Camshaft Wrench (2), rotate the camshaft until the alignment dowel on the camshaft is aligned with the slot in the camshaft drive gear.
    CAUTION: Remove excess oil from camshaft sprocket retaining bolt before reinstalling bolt. Failure to do so may cause over-torqueing of bolt resulting in bolt failure.
    Fig 4: Camshaft Sprocket
    GC0011849Courtesy of DAIMLERCHRYSLER CORP.
    1 - TORQUE WRENCH
    2 - CAMSHAFT SPROCKET
    3 - LEFT CYLINDER HEAD
    4 - SPECIAL TOOL 6958 SPANNER WITH ADAPTER PINS 8346
  6. Position the camshaft drive gear onto the camshaft, remove oil from bolt then install the retaining bolt. Using Special Tools, Spanner Wrench 6958 with Adapter Pins 8346 (4) and a suitable torque wrench (1), tighten retaining bolt to 122 N.m (90 ft. Lbs.).
  7. Remove Special Tool 8379.
  8. Rotate the crankshaft two full revolutions, then verify that the camshaft drive gear V6 marks are in fact aligned.
  9. Install the cylinder head covers (Refer to ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - INSTALLATION) .
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