I30 1996-1997

Timing Chain & Sprockets

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Removal & Installation





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Fig. Timing chain tensioner and guides-3.0L (VQ30DE) engine

  1. Disconnect the negative battery cable.
  2.  
  3. Drain the engine oil and the cooling system. Be sure to drain the engine block and the radiator.
  4.  
  5. Relieve the fuel system pressure.
  6.  
  7. Remove the left side rocker cover ornament.
    NOTE
    Before disconnecting any hoses or connectors, note the locations for reassembly.

  8.  
  9. Remove the air duct to intake manifold hose, collector hose, blow-by hose, and vacuum hoses.
    CAUTION
    Fuel injection systems remain under pressure after the engine has been turned OFF. Properly relieve fuel pressure before disconnecting any fuel lines. Failure to do so may result in fire or personal injury.

  10.  
  11. Remove the fuel hoses and disconnect the harness connections.
  12.  
  13. Disconnect the canister purge hoses.
  14.  
  15. Remove the water hoses from the cylinder head and intake manifold.
  16.  
  17. Disconnect and remove all six ignition coils from the spark plugs.
  18.  
  19. Remove the spark plugs.
  20.  
  21. Remove the bolts that secure the EGR tube and remove the tube.
  22.  
  23. Remove the intake manifold collector supports and remove the collector.
  24.  
  25. Remove the bolts that secure the fuel tube and remove the fuel tube from the vehicle.
  26.  
  27. Remove the bolts that secure the intake manifold to the engine block and remove the manifold. Loosen the bolts in the reverse sequence of the tightening procedure.
  28.  
  29. Remove the LH and RH rocker covers from the cylinder head.
  30.  
  31. Remove the engine undercovers.
  32.  
  33. Remove the right front wheel and the engine side covers.
  34.  
  35. Remove the drive belts and the idler pulley.
  36.  
  37. Remove the power steering oil pump belt and remove the power steering oil pump assembly.
  38.  
  39. Remove the camshaft position sensor (PHASE) and crankshaft position sensors (REF)/(POS).
  40.  
  41. Set the No. 1 piston to TDC of compression stroke by rotating the crankshaft.
  42.  
  43. Remove the ring gear cover access plate.
  44.  
  45. Loosen the crankshaft pulley bolt while securing the ring gear so the crankshaft cannot rotate.
    NOTE
    Use care not to damage the ring gear teeth.

  46.  
  47. Using a suitable puller, remove the crankshaft pulley.
  48.  
  49. Remove the A/C compressor and bracket.
  50.  
  51. Remove the front exhaust pipe and its support.
  52.  
  53. Hang the engine at the right and left side engine slingers with a suitable hoist.
  54.  
  55. Support the transaxle with jack.
  56.  
  57. Remove the right side engine mounting, mounting bracket, and nuts.
  58.  
  59. Remove the center crossmember assembly.
  60.  
  61. Remove the steel (lower) oil pan bolts in the reverse sequence of the torque sequence.
  62.  
  63. Insert a seal cutter between the steel and aluminum oil pan.
  64.  
  65. Tapping the cutter with a hammer, slide it around the entire edge of the oil pan. Be careful not to damage the aluminum mating surface of the upper oil pan.
  66.  
  67. Remove the steel oil pan and the oil strainer.
  68.  
  69. Remove the aluminum (upper) oil pan bolts in the reverse sequence of the torque sequence.
  70.  
  71. Remove the transaxle bolts that secure the oil pan.
  72.  
  73. Insert a seal cutter between the aluminum oil pan and the engine block.
  74.  
  75. Tapping the cutter with a hammer, slide it around the entire edge of the oil pan. Be careful not to damage the mating surfaces of the oil pan or engine block.
  76.  
  77. Remove the oil pan from the vehicle.
  78.  
  79. Remove the water pump cover and remove the bolts that secure the front timing chain case.
  80.  
  81. Using the seal cutter, remove the timing chain case cover.
  82.  
  83. Remove the internal timing chain guide and the upper chain guide.
  84.  
  85. Remove the timing chain tensioner and slack side chain guide.
  86.  
  87. Remove the left and right intake camshaft sprockets first. Be sure to hold the flats of the camshafts while removing the sprocket bolts.
  88.  
  89. Remove the lower timing chain assembly. Be sure to note the aligning marks of the chain before removal.
  90.  
  91. Insert a suitable stopper pin for the left and right camshaft tensioners.
  92.  
  93. Remove the left and right exhaust camshaft sprocket bolts. Be sure to hold the flats of the camshafts while removing the sprocket bolts.
  94.  
  95. Remove the upper timing chain assembly. Be sure to note the aligning marks of the chain before removal.
  96.  
  97. Remove the lower timing chain guide.
  98.  
  99. Remove the crankshaft sprocket.
  100.  
  101. Remove all traces of liquid gasket from the front timing chain case and from the water pump.
  102.  
  103. Inspect the timing chain for excessive wear or damage and replace as necessary.
  104.  

To install:

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Fig. Identification of the intake and exhaust camshaft sprockets-3.0L (VQ30DE) engine



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Fig. Upper timing chains alignment marks-3.0L (VQ30DE) engine



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Fig. Lower timing chain alignment marks-3.0L (VQ30DE) engine



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Fig. Application of liquid gasket to the front timing case-3.0L (VQ30DE) engine

  1. Install the crankshaft sprocket with the mating mark facing out.
  2.  
  3. Position the crankshaft to TDC of compression stroke and align the dowels of the camshaft sprockets to the 12 o'clock position in respect to the cylinder head.
  4.  
  5. Install the lower timing chain guide. The front mark on the guide should face upwards.
  6.  
  7. On a work bench, align the marks on the intake and exhaust camshaft sprockets with the marks of the chain.
  8.  
  9. Put the exhaust camshaft sprockets onto the dowel pin and tighten the mounting bolts to 88-95 ft. lbs. (119-128 Nm). Be sure to secure the camshafts while tightening the bolts.
  10.  
  11. Install the timing chains and sprockets to the intake camshafts. Be sure to align the timing chain and sprocket mating marks.
  12.  
  13. Remove the left and right camshaft tensioner stopper pins.
  14.  
  15. Align the mating mark on the crankshaft with the matchmark (gold link) on the lower timing chain.
  16.  
  17. Attach the lower timing chain to the water pump sprocket.
  18.  
  19. Working counterclockwise, install the lower timing chain camshaft sprockets. Be sure to align the sprocket marks with the blue links of the timing chain during installation.
  20.  
  21. Install the intake sprocket bolts and tighten to 88-95 ft. lbs. (119-128 Nm). Be sure to secure the camshafts while tightening the bolts.
  22.  
  23. Install the internal timing chain guide, upper timing chain guide, lower timing chain tensioner and slack side timing chain guide.
  24.  
  25. Tighten the tensioner mounting bolt to 75-96 inch lbs. (8.4-10.8 Nm) and tighten the guide bolts to 108-168 inch lbs. (13-19 Nm).
  26.  
  27. Apply a 0.102-0.142 inch (2.6-3.6mm) continuous bead of liquid gasket to all necessary areas as shown on the front timing cover.
  28.  
  29. Install the timing cover evenly and gently. Be sure to align the dowel pin holes.
  30.  
  31. Tighten the mounting bolts in sequence as follows:
    1. Bolts No. 1 and 2-Tighten to 19-23 ft. lbs. (26-31 Nm)
    2.  
    3. Bolts No. 3 to 20-Tighten to 105-121 inch lbs. (11.8-13.7 Nm)
      NOTE
      Leave the bolts unattended for 30 minutes or more after tightening. This will allow the liquid gasket to cure sufficiently.

    4.  

  32.  
  33. Apply a 0.091-0.130 inch (2.3-3.3mm) continuous bead of liquid gasket to the water pump cover and install the cover. Tighten the bolts to 84-108 inch lbs. (10-13 Nm).
  34.  
  35. Apply a 0.12 inch (3mm) continuous bead of liquid gasket to the rocker covers and install the covers. Tighten the mounting bolts in sequence as follows:
    1. Bolts No. 1 to 10-Tighten to 9-26 inch lbs. (1-3 Nm)
    2.  
    3. Bolts No. 1 to 10-Tighten to 52-69 inch lbs. (6-8 Nm)
    4.  

  36.  
  37. Apply sealant to the front and rear seal of the oil pan.
  38.  
  39. Apply a 0.177-0.217 inch (4.5-5.5mm) continuous bead of liquid gasket to the upper oil pan mating surface and install the oil pan. Tighten the mounting bolts in sequence to 12-14 ft. lbs. (16-19 Nm).
  40.  
  41. Install the transaxle bolts that secure the oil pan.
  42.  
  43. Install the oil pan strainer and tighten the mounting bolts to 12-14 ft. lbs. (16-19 Nm).
  44.  
  45. Apply a 0.177-0.217 inch (4.5-5.5mm) continuous bead of liquid gasket to the lower oil pan mating surface and install the oil pan. Tighten the mounting bolts in sequence to 57-66 inch lbs. (6.4-7.5 Nm).
  46.  
  47. Tighten the oil pan drain plug to 22-29 ft. lbs. (29-39 Nm).
  48.  
  49. Install the center crossmember assembly.
  50.  
  51. Install the right side engine mounting bracket and mount assembly.
  52.  
  53. Remove the engine slinger assembly.
  54.  
  55. Install the front exhaust pipe and its support.
  56.  
  57. Install the A/C compressor and bracket.
  58.  
  59. Install the crankshaft pulley to the crankshaft and install the mounting bolt.
  60.  
  61. Tighten the mounting bolt to 14-22 ft. lbs. (20-29 Nm). Tighten the crankshaft bolt an additional 60-66 degrees clockwise. This is about the angle from one hexagon bolt head corner to another.
  62.  
  63. Install the ring gear cover plate.
  64.  
  65. Install the camshaft position sensor (PHASE) and crankshaft position sensors (REF)/(POS).
  66.  
  67. Install the power steering pump assembly.
  68.  
  69. Install the drive belts and the idler pulley.
  70.  
  71. Install the right front inner wheel cover and install the right front wheel.
  72.  
  73. Install the engine undercovers.
  74.  
  75. Using new gaskets, install the intake manifold. Tighten the nuts and bolts in sequence and in two stages as follows:
    1. Bolts and nuts-Tighten to 44-86 inch lbs. (5-10 Nm)
    2.  
    3. Bolts and nuts-Tighten to 16-18 ft. lbs. (22-25 Nm)
    4.  

  76.  
  77. Using new insulators, install the fuel tube assembly and tighten the bolts to 15-20 ft. lbs. (21-26 Nm). Tighten the bolts in several progressive steps.
  78.  
  79. Install the intake manifold collector gasket with the arrow facing forward.
  80.  
  81. Install the intake manifold collector assembly and tighten the mounting bolts to 16-18 ft. lbs. (22-25 Nm).
  82.  
  83. Install the intake manifold collector support brackets.
  84.  
  85. Using new gaskets, install the EGR tube and tighten the mounting bolts to 15-20 ft. lbs. (21-26 Nm) in two progressive steps.
  86.  
  87. Install the spark plugs.
  88.  
  89. Install the ignition coils and tighten the mounting bolts to 27-33 inch lbs. (2.9-3.8 Nm).
  90.  
  91. Install the rocker cover ornament on the left side.
  92.  
  93. Install the water hoses to the cylinder head and intake manifold.
  94.  
  95. Connect the canister purge hoses.
  96.  
  97. Connect the fuel hoses and wiring harness connections to the fuel rail.
  98.  
  99. Install and connect the air duct to intake manifold hose, collector hose, blow-by hose, and vacuum hoses.
  100.  
  101. Refill the engine oil and coolant with the proper type and amount of fluid.
  102.  
  103. Connect the negative battery cable.
  104.  
  105. Start the engine and run at 3000 RPM under no load to purge the air from the high pressure chamber. The engine may produce a rattling noise. This indicates that air still remains in the chamber and is not a matter of concern.
  106.  

 
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