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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 3.6L Engine (Service Information) >> Cylinder Head >> Assembly, Variable Valve Timing, Phaser/Oil Control Valve >> Installation >> Left

Assembly, Variable Valve Timing, Phaser/Oil Control Valve: Installation: Left

Fig 1: Magnetic Timing Wheels
GC0144158Courtesy of CHRYSLER GROUP, LLC
CAUTION:

The magnetic timing wheels (1) must not come in contact with magnets (pickup tools, trays, etc.) or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to the camshaft position sensor.

Fig 2: Mount Dial Indicator Set To Stationary Point On Engine
GC0144995Courtesy of CHRYSLER GROUP, LLC
CAUTION:

Do not rotate the crankshaft more than a few degrees independently of the camshafts. Piston to valve contact could occur resulting in possible valve damage. If the crankshaft needs to be rotated more than a few degrees, first remove the camshafts.

  1. Verify that the indicator dial (1) is set to zero when the right side number one cylinder piston is positioned at top-dead-center on the exhaust stroke.
    Fig 3: Positioning Camshaft Alignment Holes Vertically
    GC0144138Courtesy of CHRYSLER GROUP, LLC
  2. CAUTION:

    Do not rotate the camshafts more than a few degrees independently of the crankshaft. Valve to piston contact could occur resulting in possible valve damage.

    Fig 4: Timing Chain Holder
    GC0144227Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    The Timing Chain Holder (1) should still be in place as inserted during the Removal procedure. If required, the Timing Chain Holder can be reinserted by repeating Step 10 of the Removal procedure. Refer to ASSEMBLY, VARIABLE VALVE TIMING, PHASER/OIL CONTROL VALVE, REMOVAL .

    Fig 5: Phaser Timing Mark, Chain Pins, Exhaust Cam Phaser Triangle Marking, Oil Control Valve, Scribe Lines & Arrows
    GC0144992Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Minor rotation of a camshaft (a few degrees) may be required to install the camshaft phaser.

  3. Verify that the camshafts are set at top-dead-center by positioning the alignment holes (1) vertically.
  4. Route the cam chain around the left intake cam phaser while aligning the paint mark with the phaser timing mark (1). Press the left intake cam phaser onto the intake camshaft. Install and hand tighten the oil control valve (7).
  5. While maintaining this alignment, route the cam chain around the exhaust cam phaser so that the paint mark is aligned with the phaser timing mark (3). Press the exhaust cam phaser onto the exhaust cam, install and hand tighten the oil control valve (4).
  6. The SCRIBE LINES  (5) on the cam phasers should face away from each other and the ARROWS  (6) should point toward each other and be parallel to the cylinder head cover mounting surface. There should be twelve chain pins (2) BETWEEN  the exhaust cam phaser triangle marking (3) and the intake cam phaser circle marking (1).
    Fig 6: Wrench, Oil Control Valves & Special Tool
    GC0144993Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    It may be necessary to rock the camshaft slightly (a few degrees) with a wrench (4) when installing the camshaft phaser lock.

  7. Install the (special tool #10202-2, Lock, Camshaft/Phaser, Left Side) (1) against the cylinder head cover mounting surface with the tool number facing up.
  8. Tighten the oil control valves (2) and (3) to 150 N.m (110 ft. lbs.).
  9. Remove the Camshaft Phaser Lock (1) and the Timing Chain Holder.
    Fig 7: Chain Pins, Arrows, Scribe Lines, Cam Phaser Triangle Marking & Circle Marking
    GC0144229Courtesy of CHRYSLER GROUP, LLC
  10. Rotate the crankshaft clockwise two complete revolutions stopping when the right side number one cylinder piston is again positioned at top-dead-center on the exhaust stroke. To assure correct engine timing, verify the following;
    • The indicator dial is set to ZERO  when the right side number one cylinder piston is positioned at top-dead-center on the exhaust stroke.
    • The SCRIBE LINES  (3) on the left side cam phasers face away from each other.
    • The ARROWS  (4) on the left side cam phasers point toward each other and are parallel to the cylinder head cover mounting surface.
    • There are twelve chain pins (2) BETWEEN  the exhaust cam phaser triangle marking (1) and the intake cam phaser circle marking (3).
  11. If the engine timing is not correct, repeat this procedure.
  12. Install the spark plugs. Refer to SPARK PLUG, INSTALLATION .
  13. Install the right ignition coils. Refer to COIL, IGNITION, INSTALLATION .
  14. Install the left cylinder head cover and left ignition coils. Refer to COVER(S), CYLINDER HEAD, INSTALLATION .
  15. Install the upper intake manifold and air cleaner housing assembly. Refer to MANIFOLD, INTAKE, INSTALLATION .
  16. Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
  17. Start the engine and perform the Powertrain Verification Test: Refer to POWERTRAIN VERIFICATION TEST .
    • Cam/Crank Variation Relearn
    • Target Coefficient Relearn
NOTE:

Following the first restart after a DTC driven phaser replacement, clear all DTCs and verify that subsequent restarts do not set any additional codes. For any DTCs that reset, refer to the DTC INDEX article .