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Home >> Jeep >> 2005 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 544 (3.7L Engine (Service Information)) >> Cylinder Head >> Removal >> Cylinder Head - Left

Cylinder Head - Left

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.
  1. Disconnect the negative cable from the battery.
  2. Raise the vehicle on a hoist.
  3. Disconnect the exhaust pipe at the left side exhaust manifold.
  4. Drain the engine coolant (Refer to COOLING - STANDARD PROCEDURE) .
  5. Lower the vehicle.
  6. Remove the intake manifold (Refer to ENGINE/MANIFOLDS/INTAKE MANIFOLD - REMOVAL) .
  7. Remove the master cylinder and booster assembly (Refer to BRAKES/HYDRAULIC/MECHANICAL/POWER BRAKE BOOSTER - REMOVAL) .
  8. Remove the cylinder head cover (Refer to ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S)  - REMOVAL).
  9. Remove the fan shroud and fan blade assembly (Refer to COOLING/ENGINE/RADIATOR FAN - REMOVAL) .
  10. Remove accessory drive belt (Refer to COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL) .
  11. Remove the power steering pump and set aside.
    Fig 1: Engine Top Dead Center
    GC0011743Courtesy of DAIMLERCHRYSLER CORP.
  12. Rotate the crankshaft until the damper timing mark is aligned with TDC indicator mark (2).
    Fig 2: Camshaft Sprocket V6 Marks (#1 TDC, Exhaust Stroke)
    GC0011747Courtesy of DAIMLERCHRYSLER CORP.
  13. Verify the V6 mark (1) on the camshaft sprocket is at the 12 o'clock position, with the No. 1 cylinder at TDC on the exhaust stroke. Rotate the crankshaft one turn if necessary.
  14. Remove the crankshaft damper (Refer to ENGINE/ENGINE BLOCK/VIBRATION DAMPER - REMOVAL) .
  15. Remove the timing chain cover (Refer to REMOVAL )
    Fig 3: Using Special Tool 8429
    GC0011745Courtesy of DAIMLERCHRYSLER CORP.
  16. Lock the secondary timing chains (2) to the idler sprocket using Special Tool 8429 Timing Chain Holding Fixture (1).
    NOTE: Mark the secondary timing chain prior to removal to aid in installation.
  17. Mark the secondary timing chain (2), one link on each side of the V6 mark on the camshaft drive gear.
  18. Remove the left side secondary chain tensioner (Refer to ENGINE/VALVE TIMING/TIMING BELT/CHAIN AND SPROCKETS - REMOVAL) 
    Fig 4: Cylinder Head Access Plugs
    GC0011744Courtesy of DAIMLERCHRYSLER CORP.
  19. Remove the cylinder head access plug (1) and (2).
  20. Remove the left side secondary chain guide (Refer to ENGINE/VALVE TIMING/TIMING BELT/CHAIN AND SPROCKETS - REMOVAL) .
  21. Remove the retaining bolt and the camshaft drive gear.
    CAUTION: Do not allow the engine to rotate. Severe damage to the valve train can occur.
    CAUTION: Do not overlook the four smaller bolts at the front of the cylinder head. Do not attempt to remove the cylinder head without removing these four bolts.
    NOTE: The cylinder head is attached to the cylinder block with twelve bolts.
  22. Remove the cylinder head retaining bolts.
  23. 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.
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