Jaguar 2000-06

Camshaft, Bearings & Lifters

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Removal & Installation



4.0L And 4.2L Engines
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Accessory drive belt
     
    Valve cover
     
    Timing chain cover
     
    Intake manifold
     
    Radiator and heater hoses
     
    Engine Coolant Temperature (ECT) sensor connector
     
    Coolant outlet pipe
     
    Exhaust front pipes
     
    Variable Valve Timing (VVT) sensor
     
    Crankshaft Position (CKP) sensor
     

  6.  
  7. Rotate the crankshaft until the triangular arrow indent on the driveplate is visible through the access hole.
  8.  
  9. Install the crankshaft setting peg JD 216 into the CKP sensor location.
  10.  
  11. Install the Camshaft Locking tool JD 215 on the camshafts.
  12.  
  13. Remove or disconnect the following:

    Camshaft sprocket mounting bolt by loosening it
     
    VVT mounting bolt by loosening it
     
    camshaft locking tool JD 215.
     
    Primary timing chain tensioner and back plate
     
    Primary timing chain guide
     
    VVT unit and exhaust camshaft sprocket
     
    Secondary timing chain tensioner and guide
     
    Camshafts. Loosen the bearing cap bolts evenly and in several passes.
     

  14.  

To install:

  1. Install or connect the following:

    Camshafts. Tighten the bearing cap bolts evenly, in stages, to 84-96 inch lbs. (9-11 Nm).
     

  2.  
  3. Install the Camshaft Locking tool JD 215.
  4.  
  5. Prepare the timing chain tensioners for installation by using a paperclip or other wire to unseat the check valves and compressing the pistons into their bores.
  6.  
  7. Install or connect the following:

    Secondary timing chain guide. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    Secondary timing chain tensioner. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    VVT, secondary timing chain, and exhaust cam sprocket
     
    Primary timing chain
     
    Primary timing chain guide. Tighten the bolt to 10-12 ft. lbs. (13-16 Nm).
     
    Primary timing chain tensioner and backing plate. Tighten the bolts to 89-124 inch lbs. (10-14 Nm).
     
    Primary timing chain slack, eliminate it by placing a wedge between the primary timing chain tensioner and the guide shoe.
     
    Secondary timing chain, tension it by applying counterclockwise force to the exhaust camshaft sprocket
     
    Exhaust and intake VVT sprocket bolts. Tighten them to 85-92 ft. lbs. (115-125 Nm).
     

  8.  
  9. Remove the tools and wedges.
  10.  
  11. Install or connect the following:

    CKP sensor
     
    VVT sensor
     
    Exhaust front pipes
     
    Coolant outlet pipe
     
    ECT sensor connector
     
    Radiator and heater hoses
     
    Intake manifold
     
    Timing chain cover
     
    Valve cover
     
    Accessory drive belt
     
    Negative battery cable
     

  12.  
  13. Fill the cooling system.
  14.  
  15. Start the engine and check for leaks.
  16.  


    Click image to see an enlarged view

    Fig. Apply force in a counterclockwise direction when tightening the sprocket mounting bolts


2.5L And 3.0L Engines
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Valve covers
     
    Front cover
     
    Timing chains
     

  4.  


WARNING
The camshaft journal thrust caps must be removed before loosening the remaining camshaft journal cap bolts to ensure that the camshaft journal thrust caps are not damaged.


NOTE
Keep all valvetrain components in order for assembly.



Camshaft journal thrust caps
 
Remaining camshaft journal caps
 
Camshafts
 
Valve tappets and shims
 

To install:



Click image to see an enlarged view

Fig. Camshaft journal cap torque sequence-2.5L and 3.0L engine

  1. Install or connect the following:

    Valve tappets and shims in their original locations
     
    Camshafts
     
    Camshaft journal caps in their original positions. Install the thrust journal caps last. Tighten the bolts in sequence to 89 inch lbs. (10 Nm).
     
    Timing chains
     
    Front cover
     
    Valve covers
     
    Negative battery cable
     

  2.  
  3. Start the engine and check for leaks.
  4.  

B-Bank
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Valve cover
     
    Intake manifold
     
    Radiator hoses
     
    Heater hoses
     
    Engine Coolant Temperature (ECT) sensor connector
     
    Coolant outlet pipe
     
    Catalytic converter
     
    Crankshaft damper
     
    Front cover
     
    Variable Valve Timing (VVT) bushing carrier
     
    Crankshaft Position (CKP) sensor
     

  6.  
  7. Rotate the crankshaft until the triangular arrow indent on the driveplate is visible through the access hole.
  8.  
  9. Confirm that the timing flat on each camshaft is uppermost. If necessary, rotate the crankshaft one full turn.
  10.  
  11. Install the crankshaft setting peg JD 216 to the crankshaft position sensor location.
  12.  
  13. Install the camshaft locking tool JD 215 to the B-Bank camshafts.
  14.  
  15. Remove or disconnect the following:

    Primary timing chain tensioner and backing plate
     
    Primary timing chain
     
    VVT unit, exhaust camshaft sprocket and secondary timing chain
     
    Secondary timing chain tensioner
     
    Secondary timing chain guide
     
    Camshaft locking tool
     

  16.  


NOTE
Keep all valvetrain components in order for assembly.



Camshaft bearing caps. Loosen the bolts evenly in stages.
 
Camshafts
 

To install:

  1. Install or connect the following:

    Camshafts. Tighten the bearing cap bolts evenly, in stages, to 84-96 inch lbs. (9-11 Nm).
     

  2.  
  3. Install the Camshaft Locking tool JD 215.
  4.  
  5. Prepare the timing chain tensioners for installation by using a paperclip or other wire to unseat the check valves and compressing the pistons into their bores.
  6.  
  7. Install or connect the following:

    Secondary timing chain guide. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    Secondary timing chain tensioner. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    VVT, secondary timing chain, and exhaust cam sprocket
     
    Primary timing chain
     
    Primary timing chain guide. Tighten the bolt to 10-12 ft. lbs. (13-16 Nm).
     
    Primary timing chain tensioner and backing plate. Tighten the bolts to 89-124 inch lbs. (10-14 Nm).
     
    Primary timing chain slack, eliminate it by placing a wedge between the primary timing chain tensioner and the guide shoe.
     
    Secondary timing chain, tension it by applying counterclockwise force to the exhaust camshaft sprocket.
     
    Exhaust and intake VVT sprocket bolts. Tighten them to 85-92 ft. lbs. (115-125 Nm).
     

  8.  
  9. Remove the tools and wedges.
  10.  
  11. Install or connect the following:

    CKP sensor
     
    VVT bushing carrier
     
    Front cover
     
    Crankshaft damper
     
    Catalytic converter
     
    Coolant outlet pipe
     
    ECT sensor connector
     
    Heater hoses
     
    Radiator hoses
     
    Intake manifold
     
    Valve cover. Tighten the bolts in sequence to 84-96 inch lbs. (9-11 Nm).
     
    Negative battery cable
     

  12.  
  13. Fill the cooling system.
  14.  
  15. Start the engine and check for leaks.
  16.  

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Valve cover
     
    Intake manifold
     
    Radiator hoses
     
    Heater hoses
     
    Engine Coolant Temperature (ECT) sensor connector
     
    Coolant outlet pipe
     
    Catalytic converter
     
    Crankshaft damper
     
    Front cover
     
    Variable Valve Timing (VVT) bushing carrier
     
    Crankshaft Position (CKP) sensor
     

  6.  
  7. Rotate the crankshaft until the triangular arrow indent on the driveplate is visible through the access hole.
  8.  
  9. Confirm that the timing flat on each camshaft is uppermost. If necessary, rotate the crankshaft one full turn.
  10.  
  11. Install the crankshaft setting peg JD 216 to the crankshaft position sensor location.
  12.  
  13. Install the camshaft locking tool JD 215 to the B-Bank camshafts.
  14.  
  15. Remove or disconnect the following:
    NOTE
    Keep all valvetrain components in order for assembly.



    Primary timing chain tensioner and backing plate
     
    Primary timing chain
     
    VVT unit, exhaust camshaft sprocket and secondary timing chain
     
    Secondary timing chain tensioner
     
    Secondary timing chain guide
     
    Camshaft locking tool
     



    Camshaft bearing caps. Loosen the bolts evenly in stages.
     
    Camshafts
     

  16.  

To install:

  1. Install or connect the following:

    Camshafts. Tighten the bearing cap bolts evenly, in stages, to 84-96 inch lbs. (9-11 Nm).
     

  2.  
  3. Install the Camshaft Locking tool JD 215.
  4.  
  5. Prepare the timing chain tensioners for installation by using a paperclip or other wire to unseat the check valves and compressing the pistons into their bores.
  6.  
  7. Install or connect the following:

    Secondary timing chain guide. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    Secondary timing chain tensioner. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    VVT, secondary timing chain, and exhaust cam sprocket
     
    Primary timing chain
     
    Primary timing chain guide. Tighten the bolt to 10-12 ft. lbs. (13-16 Nm).
     
    Primary timing chain tensioner and backing plate. Tighten the bolts to 89-124 inch lbs. (10-14 Nm).
     
    Primary timing chain slack, eliminate it by placing a wedge between the primary timing chain tensioner and the guide shoe.
     
    Secondary timing chain, tension it by applying counterclockwise force to the exhaust camshaft sprocket.
     
    Exhaust and intake VVT sprocket bolts. Tighten them to 85-92 ft. lbs. (115-125 Nm).
     

  8.  
  9. Remove the tools and wedges.
  10.  
  11. Install or connect the following:

    CKP sensor
     
    VVT bushing carrier
     
    Front cover
     
    Crankshaft damper
     
    Catalytic converter
     
    Coolant outlet pipe
     
    ECT sensor connector
     
    Heater hoses
     
    Radiator hoses
     
    Intake manifold
     
    Valve cover. Tighten the bolts in sequence to 84-96 inch lbs. (9-11 Nm).
     
    Negative battery cable
     

  12.  
  13. Fill the cooling system.
  14.  
  15. Start the engine and check for leaks.
  16.  

A-Bank
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Valve cover
     
    Intake manifold
     
    Radiator hoses
     
    Heater hoses
     
    Engine Coolant Temperature (ECT) sensor connector
     
    Coolant outlet pipe
     
    Catalytic converter
     
    Crankshaft damper
     
    Front cover
     
    Variable Valve Timing (VVT) bushing carrier
     
    Crankshaft Position (CKP) sensor
     

  6.  
  7. Rotate the crankshaft until the triangular arrow indent on the driveplate is visible through the access hole.
  8.  
  9. Confirm that the timing flat on each camshaft is uppermost. If necessary, rotate the crankshaft one full turn.
  10.  
  11. Install the crankshaft setting peg JD 216 to the crankshaft position sensor location.
  12.  
  13. Install the camshaft locking tool JD 215 to the A-Bank camshafts.
  14.  
  15. Remove or disconnect the following:

    Primary timing chain tensioner and backing plate
     
    Primary timing chain
     
    VVT unit, exhaust camshaft sprocket and secondary timing chain
     
    Secondary timing chain tensioner
     
    Secondary timing chain guide
     
    Camshaft locking tool
     
    Camshaft bearing caps. Loosen the bolts evenly in stages.
     
    Camshafts
     

  16.  

To install:

  1. Install or connect the following:

    Camshafts. Tighten the bearing cap bolts evenly, in stages, to 84-96 inch lbs. (9-11 Nm).
     

  2.  
  3. Install the Camshaft Locking tool JD 215.
  4.  
  5. Prepare the timing chain tensioners for installation by using a paperclip or other wire to unseat the check valves and compressing the pistons into their bores.
  6.  
  7. Install or connect the following:

    Secondary timing chain guide. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    Secondary timing chain tensioner. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    VVT, secondary timing chain, and exhaust cam sprocket
     
    Primary timing chain
     
    Primary timing chain guide. Tighten the bolt to 10-12 ft. lbs. (13-16 Nm).
     
    Primary timing chain tensioner and backing plate. Tighten the bolts to 89-124 inch lbs. (10-14 Nm).
     
    Primary timing chain slack, eliminate it by placing a wedge between the primary timing chain tensioner and the guide shoe.
     
    Secondary timing chain, tension it by applying counterclockwise force to the exhaust camshaft sprocket.
     
    Exhaust and intake VVT sprocket bolts. Tighten them to 85-92 ft. lbs. (115-125 Nm).
     

  8.  
  9. Remove the tools and wedges.
  10.  
  11. Install or connect the following:

    CKP sensor
     
    VVT bushing carrier
     
    Front cover
     
    Crankshaft damper
     
    Catalytic converter
     
    Coolant outlet pipe
     
    ECT sensor connector
     
    Heater hoses
     
    Radiator hoses
     
    Intake manifold
     
    Valve cover. Tighten the bolts in sequence to 84-96 inch lbs. (9-11 Nm).
     
    Negative battery cable
     

  12.  
  13. Fill the cooling system.
  14.  
  15. Start the engine and check for leaks.
  16.  


    Click image to see an enlarged view

    Fig. Exploded view of the camshaft and valve installation-V8 shown



    Click image to see an enlarged view

    Fig. Camshaft cover bolt torque sequence-V8 A-bank



    Click image to see an enlarged view

    Fig. Camshaft cover bolt torque sequence-V8 B-bank


  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Valve cover
     
    Intake manifold
     
    Radiator hoses
     
    Heater hoses
     
    Engine Coolant Temperature (ECT) sensor connector
     
    Coolant outlet pipe
     
    Catalytic converter
     
    Crankshaft damper
     
    Front cover
     
    Variable Valve Timing (VVT) bushing carrier
     
    Crankshaft Position (CKP) sensor
     

  6.  
  7. Rotate the crankshaft until the triangular arrow indent on the driveplate is visible through the access hole.
  8.  
  9. Confirm that the timing flat on each camshaft is uppermost. If necessary, rotate the crankshaft one full turn.
  10.  
  11. Install the crankshaft setting peg JD 216 to the crankshaft position sensor location.
  12.  
  13. Install the camshaft locking tool JD 215 to the A-Bank camshafts.
  14.  
  15. Remove or disconnect the following:

    Primary timing chain tensioner and backing plate
     
    Primary timing chain
     
    VVT unit, exhaust camshaft sprocket and secondary timing chain
     
    Secondary timing chain tensioner
     
    Secondary timing chain guide
     
    Camshaft locking tool
     
    Camshaft bearing caps. Loosen the bolts evenly in stages.
     
    Camshafts
     

  16.  

To install:

  1. Install or connect the following:

    Camshafts. Tighten the bearing cap bolts evenly, in stages, to 84-96 inch lbs. (9-11 Nm).
     

  2.  
  3. Install the Camshaft Locking tool JD 215.
  4.  
  5. Prepare the timing chain tensioners for installation by using a paperclip or other wire to unseat the check valves and compressing the pistons into their bores.
  6.  
  7. Install or connect the following:

    Secondary timing chain guide. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    Secondary timing chain tensioner. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    VVT, secondary timing chain, and exhaust cam sprocket
     
    Primary timing chain
     
    Primary timing chain guide. Tighten the bolt to 10-12 ft. lbs. (13-16 Nm).
     
    Primary timing chain tensioner and backing plate. Tighten the bolts to 89-124 inch lbs. (10-14 Nm).
     
    Primary timing chain slack, eliminate it by placing a wedge between the primary timing chain tensioner and the guide shoe.
     
    Secondary timing chain, tension it by applying counterclockwise force to the exhaust camshaft sprocket.
     
    Exhaust and intake VVT sprocket bolts. Tighten them to 85-92 ft. lbs. (115-125 Nm).
     

  8.  
  9. Remove the tools and wedges.
  10.  
  11. Install or connect the following:

    CKP sensor
     
    VVT bushing carrier
     
    Front cover
     
    Crankshaft damper
     
    Catalytic converter
     
    Coolant outlet pipe
     
    ECT sensor connector
     
    Heater hoses
     
    Radiator hoses
     
    Intake manifold
     
    Valve cover. Tighten the bolts in sequence to 84-96 inch lbs. (9-11 Nm).
     
    Negative battery cable
     

  12.  
  13. Fill the cooling system.
  14.  
  15. Start the engine and check for leaks.

    Click image to see an enlarged view

    Fig. Exploded view of the camshaft and valve installation-V8 shown



    Click image to see an enlarged view

    Fig. Camshaft cover bolt torque sequence-V8 A-bank



    Click image to see an enlarged view

    Fig. Camshaft cover bolt torque sequence-V8 B-bank

  16.  

Camshaft



Removal & Installation
B-Bank
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Valve cover
     
    Intake manifold
     
    Radiator hoses
     
    Heater hoses
     
    Engine Coolant Temperature (ECT) sensor connector
     
    Coolant outlet pipe
     
    Catalytic converter
     
    Crankshaft damper
     
    Front cover
     
    Variable Valve Timing (VVT) bushing carrier
     
    Crankshaft Position (CKP) sensor
     

  6.  
  7. Rotate the crankshaft until the triangular arrow indent on the driveplate is visible through the access hole.
  8.  
  9. Confirm that the timing flat on each camshaft is uppermost. If necessary, rotate the crankshaft one full turn.
  10.  
  11. Install the crankshaft setting peg JD 216 to the crankshaft position sensor location.
  12.  
  13. Install the camshaft locking tool JD 215 to the B-Bank camshafts.
  14.  
  15. Remove or disconnect the following:
    NOTE
    Keep all valvetrain components in order for assembly.



    Primary timing chain tensioner and backing plate
     
    Primary timing chain
     
    VVT unit, exhaust camshaft sprocket and secondary timing chain
     
    Secondary timing chain tensioner
     
    Secondary timing chain guide
     
    Camshaft locking tool
     



    Camshaft bearing caps. Loosen the bolts evenly in stages.
     
    Camshafts
     

  16.  

To install:

  1. Install or connect the following:

    Camshafts. Tighten the bearing cap bolts evenly, in stages, to 84-96 inch lbs. (9-11 Nm).
     

  2.  
  3. Install the Camshaft Locking tool JD 215.
  4.  
  5. Prepare the timing chain tensioners for installation by using a paperclip or other wire to unseat the check valves and compressing the pistons into their bores.
  6.  
  7. Install or connect the following:

    Secondary timing chain guide. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    Secondary timing chain tensioner. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    VVT, secondary timing chain, and exhaust cam sprocket
     
    Primary timing chain
     
    Primary timing chain guide. Tighten the bolt to 10-12 ft. lbs. (13-16 Nm).
     
    Primary timing chain tensioner and backing plate. Tighten the bolts to 89-124 inch lbs. (10-14 Nm).
     
    Primary timing chain slack, eliminate it by placing a wedge between the primary timing chain tensioner and the guide shoe.
     
    Secondary timing chain, tension it by applying counterclockwise force to the exhaust camshaft sprocket.
     
    Exhaust and intake VVT sprocket bolts. Tighten them to 85-92 ft. lbs. (115-125 Nm).
     

  8.  
  9. Remove the tools and wedges.
  10.  
  11. Install or connect the following:

    CKP sensor
     
    VVT bushing carrier
     
    Front cover
     
    Crankshaft damper
     
    Catalytic converter
     
    Coolant outlet pipe
     
    ECT sensor connector
     
    Heater hoses
     
    Radiator hoses
     
    Intake manifold
     
    Valve cover. Tighten the bolts in sequence to 84-96 inch lbs. (9-11 Nm).
     
    Negative battery cable
     

  12.  
  13. Fill the cooling system.
  14.  
  15. Start the engine and check for leaks.
  16.  

A-Bank
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Valve cover
     
    Intake manifold
     
    Radiator hoses
     
    Heater hoses
     
    Engine Coolant Temperature (ECT) sensor connector
     
    Coolant outlet pipe
     
    Catalytic converter
     
    Crankshaft damper
     
    Front cover
     
    Variable Valve Timing (VVT) bushing carrier
     
    Crankshaft Position (CKP) sensor
     

  6.  
  7. Rotate the crankshaft until the triangular arrow indent on the driveplate is visible through the access hole.
  8.  
  9. Confirm that the timing flat on each camshaft is uppermost. If necessary, rotate the crankshaft one full turn.
  10.  
  11. Install the crankshaft setting peg JD 216 to the crankshaft position sensor location.
  12.  
  13. Install the camshaft locking tool JD 215 to the A-Bank camshafts.
  14.  
  15. Remove or disconnect the following:

    Primary timing chain tensioner and backing plate
     
    Primary timing chain
     
    VVT unit, exhaust camshaft sprocket and secondary timing chain
     
    Secondary timing chain tensioner
     
    Secondary timing chain guide
     
    Camshaft locking tool
     
    Camshaft bearing caps. Loosen the bolts evenly in stages.
     
    Camshafts
     

  16.  

To install:

  1. Install or connect the following:

    Camshafts. Tighten the bearing cap bolts evenly, in stages, to 84-96 inch lbs. (9-11 Nm).
     

  2.  
  3. Install the Camshaft Locking tool JD 215.
  4.  
  5. Prepare the timing chain tensioners for installation by using a paperclip or other wire to unseat the check valves and compressing the pistons into their bores.
  6.  
  7. Install or connect the following:

    Secondary timing chain guide. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    Secondary timing chain tensioner. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    VVT, secondary timing chain, and exhaust cam sprocket
     
    Primary timing chain
     
    Primary timing chain guide. Tighten the bolt to 10-12 ft. lbs. (13-16 Nm).
     
    Primary timing chain tensioner and backing plate. Tighten the bolts to 89-124 inch lbs. (10-14 Nm).
     
    Primary timing chain slack, eliminate it by placing a wedge between the primary timing chain tensioner and the guide shoe.
     
    Secondary timing chain, tension it by applying counterclockwise force to the exhaust camshaft sprocket.
     
    Exhaust and intake VVT sprocket bolts. Tighten them to 85-92 ft. lbs. (115-125 Nm).
     

  8.  
  9. Remove the tools and wedges.
  10.  
  11. Install or connect the following:

    CKP sensor
     
    VVT bushing carrier
     
    Front cover
     
    Crankshaft damper
     
    Catalytic converter
     
    Coolant outlet pipe
     
    ECT sensor connector
     
    Heater hoses
     
    Radiator hoses
     
    Intake manifold
     
    Valve cover. Tighten the bolts in sequence to 84-96 inch lbs. (9-11 Nm).
     
    Negative battery cable
     

  12.  
  13. Fill the cooling system.
  14.  
  15. Start the engine and check for leaks.

    Click image to see an enlarged view

    Fig. Exploded view of the camshaft and valve installation-V8 shown



    Click image to see an enlarged view

    Fig. Camshaft cover bolt torque sequence-V8 A-bank



    Click image to see an enlarged view

    Fig. Camshaft cover bolt torque sequence-V8 B-bank

  16.  

4.0L And 4.2L Engines
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Accessory drive belt
     
    Valve cover
     
    Timing chain cover
     
    Intake manifold
     
    Radiator and heater hoses
     
    Engine Coolant Temperature (ECT) sensor connector
     
    Coolant outlet pipe
     
    Exhaust front pipes
     
    Variable Valve Timing (VVT) sensor
     
    Crankshaft Position (CKP) sensor
     

  6.  
  7. Rotate the crankshaft until the triangular arrow indent on the driveplate is visible through the access hole.
  8.  
  9. Install the Crankshaft Setting Peg JD 216 into the CKP sensor location.
  10.  
  11. Install the Camshaft Locking tool JD 215 on the camshafts.
  12.  
  13. Remove or disconnect the following:

    Camshaft sprocket mounting bolt by loosening it
     
    VVT mounting bolt by loosening it
     
    Camshaft Locking tool JD 215.
     
    Primary timing chain tensioner and back plate
     
    Primary timing chain guide
     
    VVT unit and exhaust camshaft sprocket
     
    Secondary timing chain tensioner and guide
     
    Camshafts. Loosen the bearing cap bolts evenly and in several passes.
     

  14.  

To install:

  1. Install or connect the following:

    Camshafts. Tighten the bearing cap bolts evenly, in stages, to 84-96 inch lbs. (9-11 Nm).
     

  2.  
  3. Install the Camshaft Locking tool JD 215.
  4.  
  5. Prepare the timing chain tensioners for installation by using a paperclip or other wire to unseat the check valves and compressing the pistons into their bores.
  6.  
  7. Install or connect the following:

    Secondary timing chain guide. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    Secondary timing chain tensioner. Tighten the bolt to 89-124 inch lbs. (10-14 Nm).
     
    VVT, secondary timing chain, and exhaust cam sprocket
     
    Primary timing chain
     
    Primary timing chain guide. Tighten the bolt to 10-12 ft. lbs. (13-16 Nm).
     
    Primary timing chain tensioner and backing plate. Tighten the bolts to 89-124 inch lbs. (10-14 Nm).
     
    Primary timing chain slack, eliminate it by placing a wedge between the primary timing chain tensioner and the guide shoe.
     
    Secondary timing chain, tension it by applying counterclockwise force to the exhaust camshaft sprocket
     
    Exhaust and intake VVT sprocket bolts. Tighten them to 85-92 ft. lbs. (115-125 Nm).

    Click image to see an enlarged view

    Fig. Apply force in a counterclockwise direction when tightening the sprocket mounting bolts

     

  8.  
  9. Remove the tools and wedges.
  10.  
  11. Install or connect the following:

    CKP sensor
     
    VVT sensor
     
    Exhaust front pipes
     
    Coolant outlet pipe
     
    ECT sensor connector
     
    Radiator and heater hoses
     
    Intake manifold
     
    Timing chain cover
     
    Valve cover
     
    Accessory drive belt
     
    Negative battery cable
     

  12.  
  13. Fill the cooling system.
  14.  
  15. Start the engine and check for leaks.
  16.  

2.5L And 3.0L Engines
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:
    WARNING
    The camshaft journal thrust caps must be removed before loosening the remaining camshaft journal cap bolts to ensure that the camshaft journal thrust caps are not damaged.


    NOTE
    Keep all valvetrain components in order for assembly.



    Negative battery cable
     
    Valve covers
     
    Front cover
     
    Timing chains
     



    Camshaft journal thrust caps
     
    Remaining camshaft journal caps
     
    Camshafts
     
    Valve tappets and shims
     

  4.  

To install:

Click image to see an enlarged view

Fig. Camshaft journal cap torque sequence-2.5L and 3.0L engine

  1. Install or connect the following:

    Valve tappets and shims in their original locations
     
    Camshafts
     
    Camshaft journal caps in their original positions. Install the thrust journal caps last. Tighten the bolts in sequence to 89 inch lbs. (10 Nm).
     
    Timing chains
     
    Front cover
     
    Valve covers
     
    Negative battery cable
     

  2.  
  3. Start the engine and check for leaks.
  4.  

 
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