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Timing Chain: Removal

WARNING: This page is about a different car, the 2002 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. Release fuel pressure.

    Refer to RELIEVING FUEL PRESSURE .

  2. Remove battery.
  3. Remove radiator.

    Refer to "REMOVAL AND INSTALLATION ".

  4. Drain engine oil.
  5. Remove drive belts and idler pulley with brackets.
  6. Remove cooling fan with bracket.
  7. Remove engine cover.
  8. Remove air duct with air cleaner case, collector, blow-by hose, vacuum hoses, fuel hoses, water hoses, wires, harnesses, connectors and so on.
  9. Remove the air compressor, and tie it down using rope or the like to keep it from interfering.
  10. Remove the power steering oil pump and reservoir tank. Tie them down using rope or the like to keep them from interfering.
  11. Remove alternator.
  12. Remove the following.
    • Vacuum gallery
    • Water bypass pipe
    • Brackets
  13. Remove camshaft position sensor (PHASE), intake valve timing control position sensors and crankshaft position sensor (REF).
    • Avoid impact such as dropping.
    • Do not disassemble the components.
    • Do not place them on areas where iron powder may adhere.
    • Keep away from the objects susceptible to magnetism.
      Fig 1: Locating Sensor
      G02010503Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 2: Locating Crankshaft Position Sensor
      G02010504Courtesy of NISSAN MOTOR CO., U.S.A.
  14. Remove upper intake manifold collector in reverse order of installation. Refer to "UPPER INTAKE MANIFOLD COLLECTOR ".
    Fig 3: Identifying Intake Manifold Bolts
    G02010505Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Remove intake manifold collector support bolts.
    Fig 4: Removing Intake Manifold Collector Support Bolts
    G02010506Courtesy of NISSAN MOTOR CO., U.S.A.
  16. Remove lower intake manifold collector in reverse order of installation. Refer to "LOWER INTAKE MANIFOLD COLLECTOR ".
    Fig 5: Removing Lower Intake Manifold Collector Bolts
    G02010507Courtesy of NISSAN MOTOR CO., U.S.A.
  17. Disconnect injector harness connectors.
  18. Remove fuel tube assembly in reverse order of installation.

    Refer to "FUEL TUBE ".

    Fig 6: Removing Fuel Tube Assembly
    G02010508Courtesy of NISSAN MOTOR CO., U.S.A.
  19. Remove ignition coils.
  20. Remove RH and LH rocker covers from cylinder head.
    Fig 7: Identifying RH And LH Rocker Covers From Cylinder Head
    G02010509Courtesy of NISSAN MOTOR CO., U.S.A.
  21. Set No. 1 piston at TDC on the compression stroke by rotating crankshaft.
    • Align pointer with TDC mark on crankshaft pulley.
      Fig 8: Aligning Pointer With TDC Mark On Crankshaft Pulley
      G02010510Courtesy of NISSAN MOTOR CO., U.S.A.
    • Check that intake and exhaust cam nose on No. 1 cylinder are installed as shown left.

      If not, turn the crankshaft one revolution (360°) and align as above.

      Fig 9: Locating Cam Lobe
      G02010511Courtesy of NISSAN MOTOR CO., U.S.A.
  22. Remove starter motor, and set ring gear stopper using the mounting bolt hole.
    • Be careful not to damage the signal plate teeth. 
      Fig 10: Removing Starter Motor And Set Ring Gear Stopper Using Mounting Bolt Hole (A/T)
      G02010512Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 11: Removing Starter Motor And Set Ring Gear Stopper Using Mounting Bolt Hole (M/T)
      G02010513Courtesy of NISSAN MOTOR CO., U.S.A.
  23. Loosen the crankshaft pulley bolt.
    Fig 12: Loosening Crankshaft Pulley Bolt
    G02010514Courtesy of NISSAN MOTOR CO., U.S.A.
  24. Remove crankshaft pulley with a suitable puller.
  25. Remove aluminum oil pan.

    Refer to "REMOVAL ".

  26. Temporarily install the suspension member bolts and engine mounting nuts.
    Fig 13: Removing Crankshaft Pulley With Suitable Puller
    G02010515Courtesy of NISSAN MOTOR CO., U.S.A.
  27. Remove intake valve timing control valve covers.
    • Loosen bolts in numerical order as shown in the figure. 
    • In the cover, the shaft is engaged with the center hole of the intake cam sprocket. Remove it straight out until the engagement comes off.
      Fig 14: Identifying Intake Valve Timing Control Valve Covers Left And Right
      G02010516Courtesy of NISSAN MOTOR CO., U.S.A.
  28. Remove front timing chain case bolts.
    • Loosen bolts in numerical order as shown in the figure. 
      Fig 15: Removing Front Timing Chain Case Bolts
      G02010517Courtesy of NISSAN MOTOR CO., U.S.A.
  29. Remove front timing chain case.
    • Do not scratch sealing surfaces. 
      Fig 16: Removing Front Timing Chain Case
      G02010518Courtesy of NISSAN MOTOR CO., U.S.A.
  30. Remove internal chain guide.
  31. Remove upper tension guide.
  32. Remove timing chain tensioner and slack guide.
    Fig 17: Removing Timing Chain Tensioner And Slack Guide
    G02010519Courtesy of NISSAN MOTOR CO., U.S.A.
    • Remove timing chain tensioner. (Push piston and insert a suitable pin into pinhole.)
      Fig 18: Pushing Piston And Insert Suitable Pin Into Pinhole
      G02010520Courtesy of NISSAN MOTOR CO., U.S.A.
  33. Attach a suitable stopper pin to RH and LH camshaft chain tensioners.
    Fig 19: Attaching Suitable Stopper Pin To RH And LH Camshaft Chain Tensioners
    G02010521Courtesy of NISSAN MOTOR CO., U.S.A.
  34. Remove intake and exhaust camshaft sprocket bolts.
    • Apply paint to timing chain and camshaft sprockets for alignment during installation. 
    • Secure the hexagonal head of the camshaft using a spanner to loosen mounting bolts. 
      Fig 20: Removing Intake And Exhaust Camshaft Sprocket Bolts
      G02010522Courtesy of NISSAN MOTOR CO., U.S.A.
  35. Remove primary and secondary timing chains along with the camshaft sprockets.
    • Do not disassemble the intake camshaft sprocket.
    • Avoid damaging the signal mark protrusion area at the front of the left bank intake camshaft sprocket. Keep it away from magnetized objects.
      Fig 21: Removing Primary And Secondary Timing Chains Along With Camshaft Sprockets
      G02010523Courtesy of NISSAN MOTOR CO., U.S.A.
  36. Remove lower chain guide.
  37. Remove crankshaft sprocket.
    Fig 22: Removing Lower Chain Guide
    G02010524Courtesy of NISSAN MOTOR CO., U.S.A.
  38. Use a scraper to remove all traces of liquid gasket from front timing chain case.
    Fig 23: Using Scraper To Remove All Traces Of Liquid Gasket
    G02010525Courtesy of NISSAN MOTOR CO., U.S.A.
    • Remove old liquid gasket from the bolt hole and thread. 
      Fig 24: Removing Old Liquid Gasket From Bolt Hole And Thread
      G02010526Courtesy of NISSAN MOTOR CO., U.S.A.
  39. Use a scraper to remove all traces of liquid gasket from intake valve timing control valve cover.
    Fig 25: Using A Scraper To Remove All Traces Of Liquid Gasket
    G02010527Courtesy of NISSAN MOTOR CO., U.S.A.
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