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Timing Chain: Removal

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Release the fuel pressure.

    Refer to FUEL PRESSURE RELEASE .

  2. Remove the battery.
  3. Drain the engine cooling system.

    Refer to V6 .

  4. Drain engine oil.
  5. Remove engine cover with power tool.
  6. Remove the intake air duct with the air cleaner case lid and mass air flow sensor.
  7. Remove the engine coolant reservoir.
  8. Disconnect the fuel rail quick connector at the vehicle piping side.

    Refer to REMOVAL AND INSTALLATION  .

  9. Remove the cowl top grille and the windshield wiper assembly.
  10. Remove the front RH wheel and tire with power tool.
  11. Remove the engine undercovers with power tool.
  12. Remove the inner fender splash shield with power tool.
  13. Remove the drive belts and idler pulley.
  14. Recover the A/C system R134a and remove the A/C compressor.
  15. Dismount the power steering oil pump and reservoir tank. Tie them down with wire to reposition them out of the way.
  16. Remove the lower and upper oil pans.

    Refer to REMOVAL AND INSTALLATION  .

  17. Remove the A/C high pressure line.
  18. Remove the alternator.

    Refer to REMOVAL AND INSTALLATION .

  19. Disconnect the engine harness and set aside.
  20. Support the engine and remove the RH engine mount and bracket.
  21. Remove the IVTC valve covers, bank 1 and bank 2. Loosen the bolts in the numerical order as shown.
    NOTE: The shaft in the cover is inserted into the center hole of the intake camshaft sprocket. Remove the cover by pulling straight out until the cover disengages from the camshaft sprocket.
    Fig 1: View Of IVTC Valve Covers
    G02110611Courtesy of NISSAN MOTOR CO., U.S.A.
  22. Remove the starter motor.

    Refer to REMOVAL AND INSTALLATION .

  23. Set the ring gear stopper using the mounting bolt hole.
    CAUTION: Do not damage the ring gear teeth, or the signal plate teeth behind the ring gear, when setting the stopper.
    Fig 2: View Of Ring Stopper (M/T)
    G02110612Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 3: View Of Ring Stopper (A/T)
    G02110613Courtesy of NISSAN MOTOR CO., U.S.A.
  24. Remove the crankshaft pulley.
  25. Remove the front timing chain case.
    1. Loosen the bolts in the numerical order as shown.
      Fig 4: VIew Of Front Timing Chain Case Loosening Sequence
      G02110614Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Insert the appropriate size tool into the notch at the top of the front timing chain case as shown (1).
    3. Pry off the case by moving the tool as shown (2).
    Fig 5: Prying Off Front Timing Chain Case
    G02110615Courtesy of NISSAN MOTOR CO., U.S.A.
  26. Disconnect the power brake booster vacuum hose.
  27. Disconnect the electric throttle control actuator.
  28. Disconnect the coolant hoses at the electric throttle control actuator.
  29. Disconnect the PCV hose.
  30. Disconnect the EVAP canister purge volume control solenoid vacuum hose.
  31. Remove the intake manifold collector. Loosen the bolts and nuts in the numerical order as shown.
    Fig 6: View Of Intake Manifold Collector Loosening Sequence
    G02110616Courtesy of NISSAN MOTOR CO., U.S.A.
  32. Remove the six ignition coils.
  33. Remove the six spark plugs.
  34. Remove the engine oil dipstick.
    Fig 7: View Of Ignition Coil Removal & Installation
    G02110617Courtesy of NISSAN MOTOR CO., U.S.A.
  35. Remove the IVTC (intake valve timing control) solenoid valve bank 1 and bank 2.
    • Discard the gaskets and use new gaskets for installation.
    Fig 8: Locating Intake Valve Timing Control Solenoid Valves
    G02110618Courtesy of NISSAN MOTOR CO., U.S.A.
  36. Remove the rocker covers. Loosen the bolts in the numerical order as shown.
    Fig 9: View Of Rocker Cover Loosening Sequence
    G02110619Courtesy of NISSAN MOTOR CO., U.S.A.
  37. Remove the internal chain guide.
    Fig 10: View Of Internal Chain Guide
    G02110620Courtesy of NISSAN MOTOR CO., U.S.A.
  38. Remove the timing chain tensioner and slack side chain guide.
    • Place paint marks on the timing chain and sprockets to indicate the position of the components for installation.
    1. Pull lever down and release plunger stopper tab. Plunger stopper tab can be pushed up to release (coaxial structure with lever).
      Fig 11: View Of Plunger Stopper Tab
      G02110621Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Insert stopper pin into tensioner body hole to hold lever, and keep the tab released. An Allen wrench [2.5 mm (0.098 in)] is used for a stopper pin as an example.
    3. Insert plunger into tensioner body by pressing the slack side chain guide.
    4. Keep the slack side chain guide pressed and hold it by pushing the stopper pin through the lever hole and body hole.
    5. Remove the mounting bolts and remove the timing chain tensioner.
    Fig 12: View Of Timing Chain Tensioner
    G02110622Courtesy of NISSAN MOTOR CO., U.S.A.
  39. Attach a suitable stopper pin to the RH and LH camshaft chain tensioners (for secondary timing chains).
    Fig 13: View Of Camshaft Chain Tensioner Stopper Pins
    G02110623Courtesy of NISSAN MOTOR CO., U.S.A.
  40. Remove the intake and exhaust camshaft sprocket bolts.
    • Apply paint to the timing chain and camshaft sprockets for alignment during installation.
    • Secure the hexagonal portion of the camshaft using a wrench to loosen the mounting bolts.
    Fig 14: Removing Intake & Exhaust Camshaft Sprocket Bolts
    G02110624Courtesy of NISSAN MOTOR CO., U.S.A.
  41. Remove the primary and secondary timing chains with camshaft sprockets.
    • Intake camshaft sprocket is two-for-one structure of primary and secondary sprockets.
    • Handle the intake sprockets as an assembly.
    CAUTION:
    • Avoid impact or dropping the intake sprockets.
    • Do not disassemble the intake sprockets (never loosen bolts A and B as shown).
    Fig 15: View Of Intake Sprockets Bolts A And B
    G02110625Courtesy of NISSAN MOTOR CO., U.S.A.
  42. Remove the chain tension guide and crankshaft sprocket.
  43. Remove the rear timing chain case.
    CAUTION:
    • Do not remove the metal plate cover for the oil passage.
      • Fig 16: View Of Metal Plate Cover
      G02110626Courtesy of NISSAN MOTOR CO., U.S.A.
    • After removing the chain case, do not apply any load to the case that might bend it.
    1. Loosen and remove the mounting bolts in the order shown.
    2. Cut the sealant with an appropriate tool and remove the rear timing chain case.
    Fig 17: View Of Rear Timing Chain Case Loosening Sequence
    G02110627Courtesy of NISSAN MOTOR CO., U.S.A.
  44. Use a scraper to remove all of the old RTV Silicone Sealant from the front timing chain case.
    CAUTION: Do not damage the mating surfaces.
  45. Remove all old RTV Silicone Sealant from all the bolt holes and bolts.
    CAUTION: Do not damage the threads or mating surfaces.
  46. Use a scraper to remove all the old RTV Silicone Sealant from the water pump cover and IVTC valve covers.
    CAUTION: Do not damage the mating surfaces.
  47. Remove the front oil seal from the front timing chain case using a suitable tool.
    CAUTION: Do not damage the front cover.
    Fig 18: Removing & Installing Front Oil Seal
    G02110631Courtesy of NISSAN MOTOR CO., U.S.A.
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