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Home >> Dodge and Ram >> 2020 >> Durango R/T, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (3.6L Engine (Service Information)) >> Cylinder Head >> Removal >> Right

Cylinder Head: Removal: Right

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  1. Perform the fuel pressure release procedure. Refer to FUEL SYSTEM PRESSURE RELEASE .
  2. Disconnect and isolate the negative battery cable.
  3. Remove the upper and lower intake manifolds and insulator. Refer to MANIFOLD, INTAKE, REMOVAL .
  4. Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
  5. If equipped, remove the skid plate. Refer to PLATE, SKID, FRONT
  6. Drain the engine oil. Refer to STANDARD PROCEDURE - ENGINE OIL AND FILTER CHANGE  .
    GC0144287Courtesy of CHRYSLER GROUP, LLC
  7. Remove the upper fasteners (1) securing the catalytic converter to the cylinder head.
  8. Loosen the lower fasteners (4) and position the catalytic converter aside. Refer to 3.6L
    GC0173711Courtesy of CHRYSLER GROUP, LLC
  9. Remove the oil level indicator (1).
    GC0173792Courtesy of CHRYSLER GROUP, LLC
  10. Remove the heater inlet hose from the coolant crossover (1) and position the heater inlet tube assembly (2).
  11. Remove the spark plugs. Refer to 3.6L
  12. Disengage the wire harness trough from the rear of the left cylinder head.
  13. At the rear of the right cylinder head, remove the wire harness trough fasteners.
  14. Remove the cylinder head covers and engine timing cover. Refer to REMOVAL 
    NOTE:

    Take this opportunity to measure timing chain wear. Refer to MEASURING TIMING CHAIN WEAR 

    GC0173591Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

    When aligning timing marks, always rotate engine by turning the crankshaft. Failure to do so will result in valve or piston damage.

  15. Rotate the crankshaft clockwise to place the number one piston at Top Dead Center (TDC) on the exhaust stroke by aligning the dimple (7) on the crankshaft with the block/bearing cap junction (6). The left side cam phaser arrows (4) should point toward each other and be parallel to the valve cover sealing surface (3). The right side cam phaser arrows (5) should point away from each other and the scribe lines (1) should be parallel to the valve cover sealing surface (2).
    CAUTION:

    Always reinstall timing chains so that they maintain the same direction of rotation. Inverting a previously run chain on a previously run sprocket will result in excessive wear to both the chain and sprocket.

  16. Mark the direction of rotation on the timing chain using a paint pen or equivalent to aid in reassembly.
    GC0144144Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

    When the timing chains are removed and the cylinder heads are still installed, DO NOT rotate the camshafts or crankshaft without first locating the proper crankshaft position. Failure to do so will result in valve or piston damage.

  17. Reset the RH cam chain tensioner by pushing back the tensioner piston and installing Tensioner Pin (special tool #8514A, Pins, Tensioner) (1).
  18. Remove the right camshafts. Refer to CAMSHAFT, ENGINE, REMOVAL .
    NOTE:

    If the rocker arms are to be reused, identify their positions so that they can be reassembled into their original locations.

  19. Remove the rocker arms. Refer to REMOVAL 
    NOTE:

    If the hydraulic lifters are to be reused, identify their positions so that they can be reassembled into their original locations.

  20. If required, remove the hydraulic lifters. Refer to LIFTER(S), HYDRAULIC, REMOVAL .
    GC0144139Courtesy of CHRYSLER GROUP, LLC
  21. Remove the RH cam chain tensioner arm (6).
  22. Remove the two bolts (4) and the RH cam chain tensioner (3).
  23. Remove the three bolts (2) and the RH cam chain guide (1).
    Fig 1: Cylinder Head (RH) Bolt Loosening Sequence
    GC0144193Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

    DO NOT use an impact gun or any type of power tools to break loose or remove the head bolts. This can cause the threads to pull out of the block with the bolts.

  24. Using the sequence shown, remove the cylinder head retaining bolts.
  25. Position the right cylinder head forward slightly, in order to access the rear wire harness connectors.
  26. Disconnect the oil temperature sensor wire harness connector.
  27. Remove the ignition coil capacitor and ground wire from the rear of the cylinder head.
    GC0144308Courtesy of CHRYSLER GROUP, LLC
    WARNING:

    The multi-layered steel head gaskets have very sharp edges that could cause personal injury if not handled carefully.

    NOTE:

    The head gasket (1) crimps the locating dowels (2) and the dowels may pull out of the engine block when the head gasket is removed.

  28. Remove the cylinder head and gasket. Discard the gasket.
    CAUTION:

    Do not lay the cylinder head on its gasket sealing surface, due to the design of the cylinder head gasket, any distortion to the cylinder head sealing surface may prevent the gasket from properly sealing resulting in leaks.

    GC0173767Courtesy of CHRYSLER GROUP, LLC
  29. If required, remove the oil temperature sensor (1).
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