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Standard Procedure - Locking Engine 90 Degrees After TDC

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: FRONT CRANKSHAFT HUB
GC0026240Courtesy of DAIMLERCHRYSLER CORP.
1 - FRONT CRANKSHAFT HUB
2 - WITNESS MARK
  1. Disconnect negative battery cable.
  2. Remove the vibration damper (Refer to ENGINE/ENGINE BLOCK/VIBRATION DAMPER - REMOVAL) .
    NOTE: Rotate the engine by the front crankshaft bolt until the witness mark next to the bolt in the front crankshaft hub reaches the 12 o'clock position, or TDC. Rotate the engine another 1/4 turn to the right, rotating the witness mark to the three o'clock position, or 90 degrees ATDC.
  3. Rotate engine by hand until the witness mark in the front crankshaft hub reaches the 3 O'clock position. See Fig 1.
  4. Raise and support the vehicle.
  5. Remove the splash shield.
    Fig 2: ALLEN WRENCH CORRECTLY ALIGNED
    GC0026241Courtesy of DAIMLERCHRYSLER CORP.
    1 - 90 DEGREES A.T.D.C. ACCESS HOLE
    2 - ALLEN WRENCH
    3 - 90 DEGREES A.T.D.C. HOLE IN DRIVE PLATE
    CAUTION: The engine block, flywheel, and/or flex plate, has an alignment hole to assist in properly aligning the crankshaft before service. Failure to properly align the crankshaft may result in improper valve timing and engine damage.
  6. Insert the long end of a 6 mm Allen wrench into the 90 degree ATDC access hole on the right lower side of the engine block. The engine is aligned properly when the short end of the Allen wrench is parallel to the rear of the engine block. See Fig 2.
    Fig 3: FLYWHEEL ALIGNMENT HOLE LOW
    GC0026242Courtesy of DAIMLERCHRYSLER CORP.
    1 - 90 DEGREES A.T.D.C. ACCESS HOLE
    2 - ALLEN WRENCH
    3 - 90 DEGREES A.T.D.C. HOLE IN DRIVE PLATE
  7. If the small end of the Allen wrench protrudes away from the engine block (alignment hole in the flywheel, flex plate too low) rotate the crankshaft hub bolt clockwise in small increments until proper alignment is obtained. See Fig 3.
    Fig 4: FLYWHEEL ALIGNMENT HOLE HIGH
    GC0026243Courtesy of DAIMLERCHRYSLER CORP.
    1 - 90 DEGREES A.T.D.C. ACCESS HOLE
    2 - ALLEN WRENCH
    3 - 90 DEGREES A.T.D.C. HOLE IN DRIVE PLATE
    CAUTION: DO NOT rotate the engine counterclockwise.
  8. If the small end of the Allen wrench is too close to the engine block (alignment hole in the flywheel, flex plate too high), remove the Allen wrench and rotate the crankshaft around again to the three O'clock position, or 90 degree ATDC, and begin the alignment sequence again. See Fig 4.
  9. Lower the vehicle.
  10. Remove engine cover. Refer to ENGINE COVER .
    Fig 5: EXHAUST CAMSHAFT ALIGNMENT ACCESS
    GC0026238Courtesy of DAIMLERCHRYSLER CORP.
    1 - CYLINDER HEAD COVER
    2 - THERMOSTAT HOUSING
    3 - EXHAUST CAMSHAFT ALIGNMENT ACCESS HOLE
    4 - SCREW
  11. Remove the exhaust camshaft access plug in cylinder head cover/intake manifold. See Fig 5.
    Fig 6: EXHAUST CAMSHAFT ALIGNMENT PIN
    GC0026237Courtesy of DAIMLERCHRYSLER CORP.
    1 - CYLINDER HEAD COVER
    2 - THERMOSTAT HOUSING
    3 - VM.1053
    4 - WRENCH
    CAUTION: DO NOT force the pin into the access hole. VM.1053 should screw in by hand and mount flush with the intake manifold/cylinder head cover. If the tool can not be inserted, remove the tool and rotate the engine another 180 degrees to the 3 O'clock position and try again.
  12. Insert VM.1053 to lock exhaust camshaft in position. See Fig 6.
    Fig 7: INTAKE CAMSHAFT ALIGNMENT ACCESS
    GC0026236Courtesy of DAIMLERCHRYSLER CORP.
    1 - INNER TIMING BELT COVER
    2 - SCREW
  13. Remove the left plug in cylinder head cover/intake manifold. See Fig 7.
    Fig 8: INTAKE CAMSHAFT ALIGNMENT PIN
    GC0026235Courtesy of DAIMLERCHRYSLER CORP.
    1 - VM.1052
  14. Insert VM.1052 to lock intake camshaft in position. See Fig 8.
  15. At this point the timing belt can be removed for service.
  16. After engine service is completed and timing belt reinstalled, remove both camshaft locking pins from cylinder head cover/intake manifold.
    Fig 9: CAMSHAFT ACCESS PLUGS
    GC0026239Courtesy of DAIMLERCHRYSLER CORP.
    1 - EXHAUST CAMSHAFT ACCESS
    2 - SEAL
    3 - PLUG
    4 - INTAKE CAMSHAFT ACCESS
    5 - FRONT TIMING BELT COVER
  17. Install both camshaft access plugs. Tighten the access plugs to 10.8 N.m (95 in. lbs.). See Fig 9.
  18. Install engine cover. Refer to ENGINE COVER .
  19. Connect negative battery cable.
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