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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (5.7L Engine (Service Information)) >> Engine Block >> Tappets-Hydraulic Roller >> Installation >> Installation

Tappets-Hydraulic Roller: Installation: Installation

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  1. Lubricate tappets.
    Fig 1: Remove/Install Hydraulic Roller Tappet
    GC0003965Courtesy of CHRYSLER LLC
    1 - TAPPET RETAINER
    2 - HYDRAULIC ROLLER TAPPET
  2. Install tappets in their original positions.
    CAUTION: 5.7L engines equipped with MDS uses both standard roller tappets and deactivating roller tappets, for use with the Multi Displacement System. The deactivating roller tappets must be used in cylinders 1,4,6,7. The deactivating tappets can be identified by the two holes in the side of the tappet body, for the latching pins.
  3. Install tappet guide yoke. Install the tappet guide yoke bolt and tighten to 12 N.m (106 in. lbs.) torque.
  4. Install cylinder head. See INSTALLATION .
  5. Install pushrods and rocker arm assembly. See INSTALLATION .
  6. Install cylinder head cover. (See INSTALLATION ).
  7. Install intake manifold. See INSTALLATION .
  8. Install the air cleaner.
  9. Connect the negative cable to the battery.
    CAUTION: To prevent damage to valve mechanism, engine must not be run above fast idle until all hydraulic tappets have filled with oil and have become quiet.
  10. Road test vehicle and check for leaks.
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